/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:00:17,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:00:17,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:00:17,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 09:00:17,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 09:00:17,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 09:00:17,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 09:00:17,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 09:00:17,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 09:00:17,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 09:00:17,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 09:00:17,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 09:00:17,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:00:17,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:00:17,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:00:17,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:00:17,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:00:17,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:00:17,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:00:17,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:00:17,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:00:17,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:00:17,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:00:17,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:00:17,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 09:00:17,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 09:00:17,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 09:00:17,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 09:00:17,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 09:00:17,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 09:00:17,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 09:00:17,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 09:00:17,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 09:00:17,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 09:00:17,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 09:00:17,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 09:00:17,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 09:00:17,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 09:00:17,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:00:17,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:00:17,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:00:17,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:00:17,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:00:17,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:00:17,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:00:17,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:00:17,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:00:17,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:00:17,283 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:00:17,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:00:17,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:00:17,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:00:17,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:00:17,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:00:17,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:00:17,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:00:17,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:00:17,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:00:17,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:00:17,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:00:17,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:00:17,289 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:00:17,289 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:00:17,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:00:17,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:00:17,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:00:17,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:00:17,489 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:00:17,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2022-01-10 09:00:17,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13f08688/09012e462f5247cb97061c23745ea8a2/FLAGbaebda34d [2022-01-10 09:00:17,889 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:00:17,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2022-01-10 09:00:17,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13f08688/09012e462f5247cb97061c23745ea8a2/FLAGbaebda34d [2022-01-10 09:00:18,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13f08688/09012e462f5247cb97061c23745ea8a2 [2022-01-10 09:00:18,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:00:18,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:00:18,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:00:18,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:00:18,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:00:18,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dabcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18, skipping insertion in model container [2022-01-10 09:00:18,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:00:18,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:00:18,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2022-01-10 09:00:18,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:00:18,597 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:00:18,618 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_unwindbound1.c[535,548] [2022-01-10 09:00:18,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:00:18,651 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:00:18,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18 WrapperNode [2022-01-10 09:00:18,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:00:18,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:00:18,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:00:18,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:00:18,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,698 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2022-01-10 09:00:18,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:00:18,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:00:18,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:00:18,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:00:18,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:00:18,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:00:18,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:00:18,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:00:18,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (1/1) ... [2022-01-10 09:00:18,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:00:18,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:00:18,768 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 09:00:18,793 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 09:00:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:00:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:00:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:00:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:00:18,872 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:00:18,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:00:19,790 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:00:19,795 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:00:19,795 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 09:00:19,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:00:19 BoogieIcfgContainer [2022-01-10 09:00:19,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:00:19,797 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:00:19,797 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:00:19,804 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:00:19,806 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:00:19" (1/1) ... [2022-01-10 09:00:19,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:00:19 BasicIcfg [2022-01-10 09:00:19,899 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:00:19,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:00:19,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:00:19,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:00:19,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:00:18" (1/4) ... [2022-01-10 09:00:19,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afe6242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:00:19, skipping insertion in model container [2022-01-10 09:00:19,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:00:18" (2/4) ... [2022-01-10 09:00:19,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afe6242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:00:19, skipping insertion in model container [2022-01-10 09:00:19,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:00:19" (3/4) ... [2022-01-10 09:00:19,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afe6242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:00:19, skipping insertion in model container [2022-01-10 09:00:19,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:00:19" (4/4) ... [2022-01-10 09:00:19,905 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_unwindbound1.cTransformedIcfg [2022-01-10 09:00:19,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:00:19,909 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 09:00:19,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:00:19,958 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 09:00:19,958 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 09:00:19,971 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 09:00:19,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 09:00:19,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:00:19,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:00:19,975 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 09:00:19,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:00:19,978 INFO L85 PathProgramCache]: Analyzing trace with hash -623608820, now seen corresponding path program 1 times [2022-01-10 09:00:19,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:00:19,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293917451] [2022-01-10 09:00:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:00:19,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:00:20,100 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:00:20,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747035500] [2022-01-10 09:00:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:00:20,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:00:20,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:00:20,103 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 09:00:20,104 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 09:00:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:00:20,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 09:00:20,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:00:20,246 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 09:00:20,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:00:20,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:00:20,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293917451] [2022-01-10 09:00:20,248 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:00:20,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747035500] [2022-01-10 09:00:20,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747035500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:00:20,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:00:20,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:00:20,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652915941] [2022-01-10 09:00:20,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:00:20,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:00:20,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:00:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:00:20,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:00:20,295 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 09:00:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:00:20,312 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2022-01-10 09:00:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:00:20,314 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 09:00:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:00:20,321 INFO L225 Difference]: With dead ends: 67 [2022-01-10 09:00:20,321 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 09:00:20,324 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 09:00:20,329 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 09:00:20,331 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 09:00:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 09:00:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-01-10 09:00:20,357 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 09:00:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-01-10 09:00:20,359 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 10 [2022-01-10 09:00:20,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:00:20,360 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-01-10 09:00:20,360 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 09:00:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-01-10 09:00:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 09:00:20,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:00:20,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:00:20,387 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 09:00:20,584 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 09:00:20,585 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 09:00:20,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:00:20,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1147862444, now seen corresponding path program 1 times [2022-01-10 09:00:20,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:00:20,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461912924] [2022-01-10 09:00:20,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:00:20,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:00:20,628 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:00:20,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911844483] [2022-01-10 09:00:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:00:20,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:00:20,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:00:20,630 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 09:00:20,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process