./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91e9bd2889140c35a1e4cb13cce45121897f7602719339304e30875d144da718 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 00:24:54,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 00:24:54,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 00:24:54,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 00:24:54,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 00:24:54,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 00:24:54,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 00:24:54,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 00:24:54,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 00:24:54,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 00:24:54,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 00:24:54,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 00:24:54,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 00:24:54,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 00:24:54,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 00:24:54,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 00:24:54,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 00:24:54,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 00:24:54,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 00:24:54,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 00:24:54,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 00:24:54,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 00:24:54,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 00:24:54,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 00:24:54,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 00:24:54,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 00:24:54,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 00:24:54,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 00:24:54,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 00:24:54,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 00:24:54,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 00:24:54,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 00:24:54,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 00:24:54,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 00:24:54,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 00:24:54,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 00:24:54,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 00:24:54,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 00:24:54,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 00:24:54,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 00:24:54,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 00:24:54,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 00:24:54,276 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 00:24:54,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 00:24:54,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 00:24:54,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 00:24:54,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 00:24:54,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 00:24:54,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 00:24:54,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 00:24:54,278 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 00:24:54,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 00:24:54,279 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 00:24:54,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 00:24:54,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 00:24:54,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 00:24:54,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 00:24:54,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 00:24:54,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 00:24:54,280 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 00:24:54,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 00:24:54,280 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 00:24:54,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 00:24:54,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 00:24:54,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 00:24:54,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 00:24:54,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 00:24:54,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 00:24:54,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 00:24:54,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 00:24:54,282 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 00:24:54,283 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e9bd2889140c35a1e4cb13cce45121897f7602719339304e30875d144da718 [2023-02-15 00:24:54,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 00:24:54,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 00:24:54,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 00:24:54,503 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 00:24:54,503 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 00:24:54,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound100.c [2023-02-15 00:24:55,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 00:24:55,542 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 00:24:55,543 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound100.c [2023-02-15 00:24:55,547 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7c39bc7/c37240b1ee964894a11a7b49ef7713b6/FLAGed0c15f42 [2023-02-15 00:24:55,557 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7c39bc7/c37240b1ee964894a11a7b49ef7713b6 [2023-02-15 00:24:55,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 00:24:55,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 00:24:55,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 00:24:55,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 00:24:55,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 00:24:55,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50229a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55, skipping insertion in model container [2023-02-15 00:24:55,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 00:24:55,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 00:24:55,675 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound100.c[552,565] [2023-02-15 00:24:55,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 00:24:55,713 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 00:24:55,723 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound100.c[552,565] [2023-02-15 00:24:55,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 00:24:55,750 INFO L208 MainTranslator]: Completed translation [2023-02-15 00:24:55,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55 WrapperNode [2023-02-15 00:24:55,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 00:24:55,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 00:24:55,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 00:24:55,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 00:24:55,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,781 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-02-15 00:24:55,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 00:24:55,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 00:24:55,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 00:24:55,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 00:24:55,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 00:24:55,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 00:24:55,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 00:24:55,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 00:24:55,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (1/1) ... [2023-02-15 00:24:55,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 00:24:55,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 00:24:55,837 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) [2023-02-15 00:24:55,843 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 [2023-02-15 00:24:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 00:24:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-15 00:24:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-15 00:24:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 00:24:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 00:24:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 00:24:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 00:24:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 00:24:55,908 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 00:24:55,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 00:24:56,057 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 00:24:56,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 00:24:56,062 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 00:24:56,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:24:56 BoogieIcfgContainer [2023-02-15 00:24:56,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 00:24:56,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 00:24:56,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 00:24:56,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 00:24:56,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:24:55" (1/3) ... [2023-02-15 00:24:56,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9a779b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:24:56, skipping insertion in model container [2023-02-15 00:24:56,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:24:55" (2/3) ... [2023-02-15 00:24:56,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9a779b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:24:56, skipping insertion in model container [2023-02-15 00:24:56,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:24:56" (3/3) ... [2023-02-15 00:24:56,085 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound100.c [2023-02-15 00:24:56,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 00:24:56,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 00:24:56,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 00:24:56,135 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ff8d681, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 00:24:56,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 00:24:56,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-15 00:24:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 00:24:56,143 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 00:24:56,144 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 00:24:56,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 00:24:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 00:24:56,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1807347491, now seen corresponding path program 1 times [2023-02-15 00:24:56,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 00:24:56,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665977130] [2023-02-15 00:24:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:24:56,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 00:24:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 00:24:56,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 00:24:56,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665977130] [2023-02-15 00:24:56,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-15 00:24:56,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281120180] [2023-02-15 00:24:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:24:56,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 00:24:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 00:24:56,339 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) [2023-02-15 00:24:56,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 00:24:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 00:24:56,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 00:24:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 00:24:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-02-15 00:24:56,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 00:24:56,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281120180] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 00:24:56,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 00:24:56,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 00:24:56,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760820747] [2023-02-15 00:24:56,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 00:24:56,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 00:24:56,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 00:24:56,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 00:24:56,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 00:24:56,479 INFO L87 Difference]: Start difference. First operand has 35 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-15 00:24:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 00:24:56,501 INFO L93 Difference]: Finished difference Result 67 states and 115 transitions. [2023-02-15 00:24:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 00:24:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-02-15 00:24:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 00:24:56,508 INFO L225 Difference]: With dead ends: 67 [2023-02-15 00:24:56,508 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 00:24:56,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 00:24:56,513 INFO L413 NwaCegarLoop]: 46 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, 46 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 [2023-02-15 00:24:56,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 00:24:56,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 00:24:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-15 00:24:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-15 00:24:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2023-02-15 00:24:56,546 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 39 [2023-02-15 00:24:56,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 00:24:56,547 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2023-02-15 00:24:56,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-15 00:24:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-02-15 00:24:56,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 00:24:56,549 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 00:24:56,550 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 00:24:56,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 00:24:56,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-15 00:24:56,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 00:24:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 00:24:56,755 INFO L85 PathProgramCache]: Analyzing trace with hash 197197551, now seen corresponding path program 1 times [2023-02-15 00:24:56,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 00:24:56,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040184186] [2023-02-15 00:24:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:24:56,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 00:24:56,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 00:24:56,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553892562] [2023-02-15 00:24:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:24:56,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 00:24:56,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 00:24:56,778 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) [2023-02-15 00:24:56,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 00:24:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 00:24:56,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 00:24:56,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 00:24:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-15 00:24:56,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 00:24:56,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 00:24:56,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040184186] [2023-02-15 00:24:56,973 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 00:24:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553892562] [2023-02-15 00:24:56,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553892562] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 00:24:56,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 00:24:56,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 00:24:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777120595] [2023-02-15 00:24:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 00:24:56,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 00:24:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 00:24:56,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 00:24:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-15 00:24:56,975 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-15 00:24:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 00:24:57,150 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2023-02-15 00:24:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 00:24:57,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-02-15 00:24:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 00:24:57,152 INFO L225 Difference]: With dead ends: 50 [2023-02-15 00:24:57,152 INFO L226 Difference]: Without dead ends: 48 [2023-02-15 00:24:57,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-15 00:24:57,153 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 24 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 00:24:57,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 113 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 00:24:57,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-15 00:24:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2023-02-15 00:24:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-02-15 00:24:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2023-02-15 00:24:57,166 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 39 [2023-02-15 00:24:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 00:24:57,166 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2023-02-15 00:24:57,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-15 00:24:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2023-02-15 00:24:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-15 00:24:57,167 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 00:24:57,168 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 00:24:57,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 00:24:57,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-15 00:24:57,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 00:24:57,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 00:24:57,373 INFO L85 PathProgramCache]: Analyzing trace with hash -857401627, now seen corresponding path program 1 times [2023-02-15 00:24:57,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 00:24:57,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388347953] [2023-02-15 00:24:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:24:57,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 00:24:57,388 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 00:24:57,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824149553] [2023-02-15 00:24:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:24:57,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 00:24:57,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 00:24:57,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 00:24:57,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process