/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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:45:08,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:45:08,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:45:08,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:45:08,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:45:08,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:45:08,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:45:08,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:45:08,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:45:08,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:45:08,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:45:08,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:45:08,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:45:08,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:45:08,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:45:08,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:45:08,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:45:08,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:45:08,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:45:08,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:45:08,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:45:08,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:45:08,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:45:08,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:45:08,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:45:08,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:45:08,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:45:08,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:45:08,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:45:08,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-11 00:45:08,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:45:08,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:45:08,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:45:08,862 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 00:45:08,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:45:08,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:45:08,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:45:08,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:45:08,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:45:08,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:45:08,891 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:45:08,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:45:08,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:45:08,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:45:08,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:45:08,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:45:08,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:45:08,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:45:08,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:45:08,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:45:08,895 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:45:08,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:45:09,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:45:09,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:45:09,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:45:09,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:45:09,102 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:45:09,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 00:45:09,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7208432/7d182a1d36e34af499ef7e8ce0b75747/FLAG7dab18453 [2022-01-11 00:45:09,699 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:45:09,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 00:45:09,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7208432/7d182a1d36e34af499ef7e8ce0b75747/FLAG7dab18453 [2022-01-11 00:45:10,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7208432/7d182a1d36e34af499ef7e8ce0b75747 [2022-01-11 00:45:10,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:45:10,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:45:10,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:45:10,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:45:10,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:45:10,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:45:10" (1/1) ... [2022-01-11 00:45:10,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f610fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:10, skipping insertion in model container [2022-01-11 00:45:10,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:45:10" (1/1) ... [2022-01-11 00:45:10,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:45:10,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:45:10,482 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2022-01-11 00:45:10,505 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2022-01-11 00:45:10,512 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2022-01-11 00:45:10,516 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2022-01-11 00:45:10,530 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2022-01-11 00:45:10,534 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2022-01-11 00:45:10,541 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2022-01-11 00:45:10,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:45:10,796 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:45:10,819 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2022-01-11 00:45:10,829 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2022-01-11 00:45:10,834 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2022-01-11 00:45:10,837 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2022-01-11 00:45:10,843 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2022-01-11 00:45:10,845 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2022-01-11 00:45:10,850 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2022-01-11 00:45:11,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:45:11,044 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:45:11,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11 WrapperNode [2022-01-11 00:45:11,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:45:11,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:45:11,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:45:11,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:45:11,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,165 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6513 [2022-01-11 00:45:11,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:45:11,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:45:11,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:45:11,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:45:11,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:45:11,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:45:11,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:45:11,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:45:11,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (1/1) ... [2022-01-11 00:45:11,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:45:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:45:11,308 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 00:45:11,358 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 00:45:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:45:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:45:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:45:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:45:11,686 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:45:11,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:45:14,173 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:45:14,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:45:14,231 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 00:45:14,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:45:14 BoogieIcfgContainer [2022-01-11 00:45:14,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:45:14,234 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:45:14,234 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:45:14,235 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:45:14,237 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:45:14" (1/1) ... [2022-01-11 00:45:15,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:45:15 BasicIcfg [2022-01-11 00:45:15,983 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:45:15,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:45:15,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:45:15,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:45:15,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:45:10" (1/4) ... [2022-01-11 00:45:15,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6103a209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:45:15, skipping insertion in model container [2022-01-11 00:45:15,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:45:11" (2/4) ... [2022-01-11 00:45:15,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6103a209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:45:15, skipping insertion in model container [2022-01-11 00:45:15,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:45:14" (3/4) ... [2022-01-11 00:45:15,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6103a209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:45:15, skipping insertion in model container [2022-01-11 00:45:15,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:45:15" (4/4) ... [2022-01-11 00:45:15,990 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.cTransformedIcfg [2022-01-11 00:45:15,995 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:45:15,995 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-11 00:45:16,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:45:16,043 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 00:45:16,043 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-11 00:45:16,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 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 00:45:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 00:45:16,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:16,089 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] [2022-01-11 00:45:16,089 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:16,093 INFO L85 PathProgramCache]: Analyzing trace with hash 671823860, now seen corresponding path program 1 times [2022-01-11 00:45:16,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:16,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131423123] [2022-01-11 00:45:16,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:16,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:16,919 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 00:45:16,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:16,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131423123] [2022-01-11 00:45:16,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131423123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:16,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:16,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:45:16,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584990393] [2022-01-11 00:45:16,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:16,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:45:16,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:45:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:45:16,955 INFO L87 Difference]: Start difference. First operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 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 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 00:45:22,366 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 00:45:26,563 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 00:45:27,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:27,126 INFO L93 Difference]: Finished difference Result 3204 states and 5678 transitions. [2022-01-11 00:45:27,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 00:45:27,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-11 00:45:27,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:27,157 INFO L225 Difference]: With dead ends: 3204 [2022-01-11 00:45:27,157 INFO L226 Difference]: Without dead ends: 2212 [2022-01-11 00:45:27,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-01-11 00:45:27,167 INFO L933 BasicCegarLoop]: 1612 mSDtfsCounter, 9062 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9062 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:45:27,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9062 Valid, 3769 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1321 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-01-11 00:45:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states. [2022-01-11 00:45:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 1684. [2022-01-11 00:45:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1677 states have (on average 1.3923673225998807) internal successors, (2335), 1683 states have internal predecessors, (2335), 0 states have call successors, (0), 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 00:45:27,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2335 transitions. [2022-01-11 00:45:27,351 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2335 transitions. Word has length 63 [2022-01-11 00:45:27,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:45:27,351 INFO L470 AbstractCegarLoop]: Abstraction has 1684 states and 2335 transitions. [2022-01-11 00:45:27,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 00:45:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2335 transitions. [2022-01-11 00:45:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:45:27,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:27,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:45:27,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:45:27,355 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:27,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:27,355 INFO L85 PathProgramCache]: Analyzing trace with hash -692094791, now seen corresponding path program 1 times [2022-01-11 00:45:27,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:27,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296694175] [2022-01-11 00:45:27,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:27,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:27,533 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 00:45:27,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:27,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296694175] [2022-01-11 00:45:27,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296694175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:27,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:27,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:45:27,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693256700] [2022-01-11 00:45:27,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:27,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:45:27,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:27,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:45:27,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:45:27,536 INFO L87 Difference]: Start difference. First operand 1684 states and 2335 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:27,868 INFO L93 Difference]: Finished difference Result 3480 states and 4983 transitions. [2022-01-11 00:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:45:27,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:45:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:27,876 INFO L225 Difference]: With dead ends: 3480 [2022-01-11 00:45:27,877 INFO L226 Difference]: Without dead ends: 2601 [2022-01-11 00:45:27,878 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 00:45:27,881 INFO L933 BasicCegarLoop]: 1636 mSDtfsCounter, 887 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2571 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 00:45:27,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [887 Valid, 2571 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:45:27,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2022-01-11 00:45:28,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2587. [2022-01-11 00:45:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 2580 states have (on average 1.4027131782945736) internal successors, (3619), 2586 states have internal predecessors, (3619), 0 states have call successors, (0), 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 00:45:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3619 transitions. [2022-01-11 00:45:28,112 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3619 transitions. Word has length 64 [2022-01-11 00:45:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:45:28,113 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3619 transitions. [2022-01-11 00:45:28,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3619 transitions. [2022-01-11 00:45:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:45:28,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:28,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:45:28,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:45:28,118 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1212392903, now seen corresponding path program 1 times [2022-01-11 00:45:28,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:28,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850142544] [2022-01-11 00:45:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:28,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:28,544 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 00:45:28,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:28,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850142544] [2022-01-11 00:45:28,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850142544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:28,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:28,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:45:28,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403576425] [2022-01-11 00:45:28,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:28,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:45:28,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:28,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:45:28,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:45:28,546 INFO L87 Difference]: Start difference. First operand 2587 states and 3619 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:32,715 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 00:45:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:34,540 INFO L93 Difference]: Finished difference Result 4650 states and 6767 transitions. [2022-01-11 00:45:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:45:34,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:45:34,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:34,549 INFO L225 Difference]: With dead ends: 4650 [2022-01-11 00:45:34,549 INFO L226 Difference]: Without dead ends: 3385 [2022-01-11 00:45:34,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-11 00:45:34,554 INFO L933 BasicCegarLoop]: 1253 mSDtfsCounter, 3022 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3022 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:45:34,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3022 Valid, 3104 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 816 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-11 00:45:34,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2022-01-11 00:45:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2527. [2022-01-11 00:45:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2520 states have (on average 1.40515873015873) internal successors, (3541), 2526 states have internal predecessors, (3541), 0 states have call successors, (0), 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 00:45:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3541 transitions. [2022-01-11 00:45:34,914 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3541 transitions. Word has length 64 [2022-01-11 00:45:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:45:34,914 INFO L470 AbstractCegarLoop]: Abstraction has 2527 states and 3541 transitions. [2022-01-11 00:45:34,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3541 transitions. [2022-01-11 00:45:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:45:34,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:34,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:45:34,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:45:34,917 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:34,918 INFO L85 PathProgramCache]: Analyzing trace with hash -817691376, now seen corresponding path program 1 times [2022-01-11 00:45:34,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:34,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043536403] [2022-01-11 00:45:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:34,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:35,016 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 00:45:35,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:35,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043536403] [2022-01-11 00:45:35,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043536403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:35,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:35,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:45:35,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707197430] [2022-01-11 00:45:35,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:35,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:45:35,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:45:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:45:35,021 INFO L87 Difference]: Start difference. First operand 2527 states and 3541 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:35,497 INFO L93 Difference]: Finished difference Result 5006 states and 7275 transitions. [2022-01-11 00:45:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:45:35,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:45:35,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:35,507 INFO L225 Difference]: With dead ends: 5006 [2022-01-11 00:45:35,507 INFO L226 Difference]: Without dead ends: 3630 [2022-01-11 00:45:35,509 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 00:45:35,512 INFO L933 BasicCegarLoop]: 1331 mSDtfsCounter, 658 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:45:35,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 2111 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:45:35,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3630 states. [2022-01-11 00:45:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3630 to 3622. [2022-01-11 00:45:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3615 states have (on average 1.4226832641770402) internal successors, (5143), 3621 states have internal predecessors, (5143), 0 states have call successors, (0), 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 00:45:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 5143 transitions. [2022-01-11 00:45:36,052 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 5143 transitions. Word has length 64 [2022-01-11 00:45:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:45:36,052 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 5143 transitions. [2022-01-11 00:45:36,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 5143 transitions. [2022-01-11 00:45:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:45:36,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:36,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:45:36,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:45:36,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:36,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:36,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1052129198, now seen corresponding path program 1 times [2022-01-11 00:45:36,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:36,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609788598] [2022-01-11 00:45:36,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:36,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:36,404 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 00:45:36,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:36,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609788598] [2022-01-11 00:45:36,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609788598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:36,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:36,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:45:36,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023722108] [2022-01-11 00:45:36,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:36,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:45:36,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:36,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:45:36,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:45:36,405 INFO L87 Difference]: Start difference. First operand 3622 states and 5143 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:42,818 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 00:45:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:47,991 INFO L93 Difference]: Finished difference Result 11745 states and 17317 transitions. [2022-01-11 00:45:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 00:45:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:45:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:48,017 INFO L225 Difference]: With dead ends: 11745 [2022-01-11 00:45:48,017 INFO L226 Difference]: Without dead ends: 9729 [2022-01-11 00:45:48,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-01-11 00:45:48,021 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 5659 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5659 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:45:48,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5659 Valid, 2780 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1516 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-01-11 00:45:48,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9729 states. [2022-01-11 00:45:49,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9729 to 5617. [2022-01-11 00:45:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5617 states, 5610 states have (on average 1.4265597147950089) internal successors, (8003), 5616 states have internal predecessors, (8003), 0 states have call successors, (0), 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 00:45:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5617 states to 5617 states and 8003 transitions. [2022-01-11 00:45:49,548 INFO L78 Accepts]: Start accepts. Automaton has 5617 states and 8003 transitions. Word has length 64 [2022-01-11 00:45:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:45:49,549 INFO L470 AbstractCegarLoop]: Abstraction has 5617 states and 8003 transitions. [2022-01-11 00:45:49,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:49,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5617 states and 8003 transitions. [2022-01-11 00:45:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:45:49,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:49,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:45:49,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:45:49,556 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1217976752, now seen corresponding path program 1 times [2022-01-11 00:45:49,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:49,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002448497] [2022-01-11 00:45:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:49,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:49,661 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 00:45:49,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:49,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002448497] [2022-01-11 00:45:49,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002448497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:49,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:49,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:45:49,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493975484] [2022-01-11 00:45:49,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:49,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:45:49,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:49,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:45:49,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:45:49,662 INFO L87 Difference]: Start difference. First operand 5617 states and 8003 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:52,322 INFO L93 Difference]: Finished difference Result 13120 states and 18953 transitions. [2022-01-11 00:45:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:45:52,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:45:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:52,341 INFO L225 Difference]: With dead ends: 13120 [2022-01-11 00:45:52,341 INFO L226 Difference]: Without dead ends: 9266 [2022-01-11 00:45:52,345 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 00:45:52,345 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 597 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:45:52,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 2113 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:45:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2022-01-11 00:45:54,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 9216. [2022-01-11 00:45:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9216 states, 9209 states have (on average 1.422195678140949) internal successors, (13097), 9215 states have internal predecessors, (13097), 0 states have call successors, (0), 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 00:45:54,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9216 states to 9216 states and 13097 transitions. [2022-01-11 00:45:54,852 INFO L78 Accepts]: Start accepts. Automaton has 9216 states and 13097 transitions. Word has length 64 [2022-01-11 00:45:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:45:54,852 INFO L470 AbstractCegarLoop]: Abstraction has 9216 states and 13097 transitions. [2022-01-11 00:45:54,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:54,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9216 states and 13097 transitions. [2022-01-11 00:45:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:45:54,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:45:54,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:45:54,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:45:54,859 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:45:54,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:45:54,859 INFO L85 PathProgramCache]: Analyzing trace with hash -587123814, now seen corresponding path program 1 times [2022-01-11 00:45:54,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:45:54,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932997172] [2022-01-11 00:45:54,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:45:54,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:45:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:45:54,950 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 00:45:54,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:45:54,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932997172] [2022-01-11 00:45:54,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932997172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:45:54,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:45:54,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:45:54,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838202849] [2022-01-11 00:45:54,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:45:54,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:45:54,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:45:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:45:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:45:54,952 INFO L87 Difference]: Start difference. First operand 9216 states and 13097 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:45:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:45:59,244 INFO L93 Difference]: Finished difference Result 21688 states and 31425 transitions. [2022-01-11 00:45:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:45:59,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:45:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:45:59,271 INFO L225 Difference]: With dead ends: 21688 [2022-01-11 00:45:59,271 INFO L226 Difference]: Without dead ends: 15117 [2022-01-11 00:45:59,278 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 00:45:59,278 INFO L933 BasicCegarLoop]: 1264 mSDtfsCounter, 552 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:45:59,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 2125 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:45:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15117 states. [2022-01-11 00:46:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15117 to 13574. [2022-01-11 00:46:03,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13574 states, 13567 states have (on average 1.4297191715191273) internal successors, (19397), 13573 states have internal predecessors, (19397), 0 states have call successors, (0), 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 00:46:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13574 states to 13574 states and 19397 transitions. [2022-01-11 00:46:03,259 INFO L78 Accepts]: Start accepts. Automaton has 13574 states and 19397 transitions. Word has length 64 [2022-01-11 00:46:03,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:46:03,260 INFO L470 AbstractCegarLoop]: Abstraction has 13574 states and 19397 transitions. [2022-01-11 00:46:03,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:46:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 13574 states and 19397 transitions. [2022-01-11 00:46:03,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:46:03,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:46:03,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:46:03,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:46:03,267 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 00:46:03,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:46:03,268 INFO L85 PathProgramCache]: Analyzing trace with hash -379630818, now seen corresponding path program 1 times [2022-01-11 00:46:03,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:46:03,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281706199] [2022-01-11 00:46:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:46:03,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:46:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:46:03,595 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 00:46:03,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:46:03,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281706199] [2022-01-11 00:46:03,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281706199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:46:03,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:46:03,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:46:03,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510157326] [2022-01-11 00:46:03,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:46:03,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:46:03,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:46:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:46:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:46:03,596 INFO L87 Difference]: Start difference. First operand 13574 states and 19397 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:46:07,626 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 00:46:09,751 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 []