/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/nla-digbench-scaling/fermat1-ll_unwindbound100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:40:26,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:40:26,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:40:26,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:40:26,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:40:26,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:40:26,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:40:26,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:40:26,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:40:26,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:40:26,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:40:26,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:40:26,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:40:26,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:40:26,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:40:26,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:40:26,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:40:26,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:40:26,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:40:26,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:40:26,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:40:26,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:40:26,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:40:26,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:40:26,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:40:26,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:40:26,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:40:26,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:40:26,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:40:26,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:40:26,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:40:26,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:40:26,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:40:26,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:40:26,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:40:26,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:40:26,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:40:26,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:40:26,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:40:26,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:40:26,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:40:26,477 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 [2022-01-10 20:40:26,493 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:40:26,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:40:26,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:40:26,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:40:26,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:40:26,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:40:26,494 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:40:26,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:40:26,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:40:26,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:40:26,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:40:26,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:40:26,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:40:26,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:40:26,495 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:40:26,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:40:26,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:40:26,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:40:26,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:40:26,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:40:26,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:40:26,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:40:26,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:40:26,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:40:26,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:40:26,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:40:26,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:40:26,502 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:40:26,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:40:26,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:40:26,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:40:26,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:40:26,504 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:40:26,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:40:26,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:40:26,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:40:26,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:40:26,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:40:26,709 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:40:26,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound100.c [2022-01-10 20:40:26,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8febf625/52ad4426dd904740867673eac1c68ef3/FLAG819451ba5 [2022-01-10 20:40:27,143 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:40:27,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound100.c [2022-01-10 20:40:27,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8febf625/52ad4426dd904740867673eac1c68ef3/FLAG819451ba5 [2022-01-10 20:40:27,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8febf625/52ad4426dd904740867673eac1c68ef3 [2022-01-10 20:40:27,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:40:27,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:40:27,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:40:27,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:40:27,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:40:27,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244b405e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27, skipping insertion in model container [2022-01-10 20:40:27,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:40:27,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:40:27,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound100.c[535,548] [2022-01-10 20:40:27,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:40:27,731 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:40:27,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound100.c[535,548] [2022-01-10 20:40:27,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:40:27,756 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:40:27,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27 WrapperNode [2022-01-10 20:40:27,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:40:27,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:40:27,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:40:27,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:40:27,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,781 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2022-01-10 20:40:27,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:40:27,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:40:27,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:40:27,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:40:27,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:40:27,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:40:27,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:40:27,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:40:27,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (1/1) ... [2022-01-10 20:40:27,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:40:27,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:40:27,830 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 20:40:27,834 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 20:40:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:40:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:40:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:40:27,895 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:40:27,896 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:40:29,012 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:40:29,016 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:40:29,016 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 20:40:29,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:40:29 BoogieIcfgContainer [2022-01-10 20:40:29,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:40:29,018 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:40:29,018 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:40:29,019 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:40:29,021 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:40:29" (1/1) ... [2022-01-10 20:40:29,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:40:29 BasicIcfg [2022-01-10 20:40:29,107 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:40:29,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:40:29,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:40:29,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:40:29,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:40:27" (1/4) ... [2022-01-10 20:40:29,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e66d9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:40:29, skipping insertion in model container [2022-01-10 20:40:29,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:40:27" (2/4) ... [2022-01-10 20:40:29,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e66d9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:40:29, skipping insertion in model container [2022-01-10 20:40:29,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:40:29" (3/4) ... [2022-01-10 20:40:29,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e66d9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:40:29, skipping insertion in model container [2022-01-10 20:40:29,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:40:29" (4/4) ... [2022-01-10 20:40:29,111 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_unwindbound100.cTransformedIcfg [2022-01-10 20:40:29,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:40:29,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 20:40:29,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:40:29,145 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 20:40:29,145 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 20:40:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 34 states have internal predecessors, (49), 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 20:40:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 20:40:29,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:40:29,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:40:29,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:40:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:40:29,159 INFO L85 PathProgramCache]: Analyzing trace with hash -623608820, now seen corresponding path program 1 times [2022-01-10 20:40:29,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:40:29,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268147787] [2022-01-10 20:40:29,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:40:29,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:40:29,232 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:40:29,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884025114] [2022-01-10 20:40:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:40:29,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:40:29,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:40:29,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:40:29,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:40:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:40:29,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 20:40:29,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:40:29,373 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 20:40:29,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:40:29,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:40:29,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268147787] [2022-01-10 20:40:29,374 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:40:29,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884025114] [2022-01-10 20:40:29,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884025114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:40:29,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:40:29,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:40:29,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647560254] [2022-01-10 20:40:29,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:40:29,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:40:29,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:40:29,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:40:29,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:40:29,404 INFO L87 Difference]: Start difference. First operand has 35 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 34 states have internal predecessors, (49), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 20:40:29,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:40:29,418 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2022-01-10 20:40:29,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:40:29,420 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-01-10 20:40:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:40:29,424 INFO L225 Difference]: With dead ends: 67 [2022-01-10 20:40:29,424 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 20:40:29,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:40:29,429 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:40:29,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:40:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 20:40:29,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-01-10 20:40:29,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 30 states have internal predecessors, (36), 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 20:40:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-01-10 20:40:29,458 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 10 [2022-01-10 20:40:29,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:40:29,458 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-01-10 20:40:29,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 20:40:29,458 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-01-10 20:40:29,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 20:40:29,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:40:29,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:40:29,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 20:40:29,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-01-10 20:40:29,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:40:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:40:29,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1147862444, now seen corresponding path program 1 times [2022-01-10 20:40:29,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:40:29,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992540071] [2022-01-10 20:40:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:40:29,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:40:29,716 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:40:29,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604770481] [2022-01-10 20:40:29,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:40:29,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:40:29,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:40:29,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:40:29,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process