/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_LAZY.epf -i ../../../trunk/examples/svcomp/eca-rers2018/Problem13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:27:55,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:27:55,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:27:55,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:27:55,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:27:55,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:27:55,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:27:55,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:27:55,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:27:55,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:27:55,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:27:55,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:27:55,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:27:55,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:27:55,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:27:55,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:27:55,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:27:55,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:27:55,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:27:55,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:27:55,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:27:55,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:27:55,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:27:55,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:27:55,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 17:27:55,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:27:55,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:27:55,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:27:55,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:27:55,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:27:55,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:27:55,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:27:55,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:27:55,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:27:55,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:27:55,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:27:55,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:27:55,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:27:55,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:27:55,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:27:55,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:27:55,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:27:55,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:27:55,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:27:55,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:27:55,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:27:55,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:27:55,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:27:55,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:27:55,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:27:55,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:27:55,884 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:27:55,884 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:27:56,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:27:56,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:27:56,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:27:56,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:27:56,091 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:27:56,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2018/Problem13.c [2022-01-10 17:27:56,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b862240/29d63c3558c0400586a34f660ed45446/FLAG7a82f4a50 [2022-01-10 17:27:57,266 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:27:57,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c [2022-01-10 17:27:57,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b862240/29d63c3558c0400586a34f660ed45446/FLAG7a82f4a50 [2022-01-10 17:27:57,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b862240/29d63c3558c0400586a34f660ed45446 [2022-01-10 17:27:57,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:27:57,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:27:57,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:27:57,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:27:57,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:27:57,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:27:57" (1/1) ... [2022-01-10 17:27:57,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23659496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:27:57, skipping insertion in model container [2022-01-10 17:27:57,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:27:57" (1/1) ... [2022-01-10 17:27:57,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:27:58,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:27:58,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[778,791] [2022-01-10 17:27:58,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[817,830] [2022-01-10 17:28:12,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:28:12,518 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:28:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[778,791] [2022-01-10 17:28:12,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[817,830] [2022-01-10 17:28:13,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:28:13,888 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:28:13,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13 WrapperNode [2022-01-10 17:28:13,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:28:13,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:28:13,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:28:13,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:28:13,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:14,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:15,374 INFO L137 Inliner]: procedures = 710, calls = 701, calls flagged for inlining = 697, calls inlined = 697, statements flattened = 108868 [2022-01-10 17:28:15,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:28:15,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:28:15,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:28:15,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:28:15,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:15,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:15,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:15,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:16,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:16,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:16,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:17,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:28:17,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:28:17,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:28:17,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:28:17,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (1/1) ... [2022-01-10 17:28:17,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:28:17,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:28:17,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:28:17,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:28:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:28:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:28:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:28:17,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:28:17,522 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:28:17,523 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:28:34,918 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:28:34,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:28:34,965 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:28:34,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:28:34 BoogieIcfgContainer [2022-01-10 17:28:34,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:28:34,980 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:28:34,980 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:28:34,983 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:28:34,985 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:28:34" (1/1) ... [2022-01-10 17:28:38,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:28:38 BasicIcfg [2022-01-10 17:28:38,585 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:28:38,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:28:38,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:28:38,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:28:38,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:27:57" (1/4) ... [2022-01-10 17:28:38,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5478a6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:28:38, skipping insertion in model container [2022-01-10 17:28:38,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:28:13" (2/4) ... [2022-01-10 17:28:38,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5478a6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:28:38, skipping insertion in model container [2022-01-10 17:28:38,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:28:34" (3/4) ... [2022-01-10 17:28:38,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5478a6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:28:38, skipping insertion in model container [2022-01-10 17:28:38,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:28:38" (4/4) ... [2022-01-10 17:28:38,599 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem13.cTransformedIcfg [2022-01-10 17:28:38,603 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:28:38,603 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 100 error locations. [2022-01-10 17:28:38,648 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:28:38,654 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:28:38,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2022-01-10 17:28:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 3725 states, 3624 states have (on average 1.8071192052980132) internal successors, (6549), 3724 states have internal predecessors, (6549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:28:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 17:28:38,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:28:38,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:28:38,720 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 97 more)] === [2022-01-10 17:28:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:28:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2089381203, now seen corresponding path program 1 times [2022-01-10 17:28:38,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:28:38,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267422560] [2022-01-10 17:28:38,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:28:38,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:28:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:28:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:28:39,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:28:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267422560] [2022-01-10 17:28:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267422560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:28:39,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:28:39,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:28:39,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507953315] [2022-01-10 17:28:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:28:39,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:28:39,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:28:39,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:28:39,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:28:39,166 INFO L87 Difference]: Start difference. First operand has 3725 states, 3624 states have (on average 1.8071192052980132) internal successors, (6549), 3724 states have internal predecessors, (6549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:28:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:28:54,303 INFO L93 Difference]: Finished difference Result 9871 states and 17659 transitions. [2022-01-10 17:28:54,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:28:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-01-10 17:28:54,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:28:54,334 INFO L225 Difference]: With dead ends: 9871 [2022-01-10 17:28:54,334 INFO L226 Difference]: Without dead ends: 6139 [2022-01-10 17:28:54,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:28:54,347 INFO L933 BasicCegarLoop]: 6304 mSDtfsCounter, 2960 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 13239 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 10247 SdHoareTripleChecker+Invalid, 14054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 13239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-01-10 17:28:54,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2960 Valid, 10247 Invalid, 14054 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [815 Valid, 13239 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-01-10 17:28:54,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2022-01-10 17:28:54,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 5341. [2022-01-10 17:28:54,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5241 states have (on average 1.7695096355657318) internal successors, (9274), 5340 states have internal predecessors, (9274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:28:54,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 9274 transitions. [2022-01-10 17:28:54,479 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 9274 transitions. Word has length 12 [2022-01-10 17:28:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:28:54,479 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 9274 transitions. [2022-01-10 17:28:54,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:28:54,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 9274 transitions. [2022-01-10 17:28:54,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 17:28:54,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:28:54,485 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] [2022-01-10 17:28:54,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:28:54,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 97 more)] === [2022-01-10 17:28:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:28:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1680342740, now seen corresponding path program 1 times [2022-01-10 17:28:54,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:28:54,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144723833] [2022-01-10 17:28:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:28:54,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:28:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:28:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:28:54,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:28:54,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144723833] [2022-01-10 17:28:54,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144723833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:28:54,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:28:54,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:28:54,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447722979] [2022-01-10 17:28:54,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:28:54,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:28:54,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:28:54,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:28:54,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:28:54,618 INFO L87 Difference]: Start difference. First operand 5341 states and 9274 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)