./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/prod4br-ll_valuebound20.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 d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 07:47:25,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 07:47:25,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 07:47:25,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 07:47:25,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 07:47:25,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 07:47:25,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 07:47:25,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 07:47:25,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 07:47:25,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 07:47:25,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 07:47:25,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 07:47:25,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 07:47:25,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 07:47:25,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 07:47:25,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 07:47:25,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 07:47:25,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 07:47:25,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 07:47:25,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 07:47:25,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 07:47:25,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 07:47:25,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 07:47:25,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 07:47:25,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 07:47:25,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 07:47:25,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 07:47:25,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 07:47:25,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 07:47:25,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 07:47:25,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 07:47:25,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 07:47:25,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 07:47:25,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 07:47:25,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 07:47:25,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 07:47:25,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 07:47:25,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 07:47:25,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 07:47:25,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 07:47:25,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 07:47:25,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 07:47:25,256 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 07:47:25,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 07:47:25,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 07:47:25,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 07:47:25,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 07:47:25,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 07:47:25,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 07:47:25,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 07:47:25,258 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 07:47:25,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 07:47:25,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 07:47:25,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 07:47:25,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 07:47:25,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 07:47:25,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 07:47:25,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 07:47:25,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 07:47:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 07:47:25,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 07:47:25,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 07:47:25,262 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 07:47:25,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 07:47:25,262 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 07:47:25,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e [2023-02-17 07:47:25,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 07:47:25,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 07:47:25,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 07:47:25,442 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 07:47:25,442 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 07:47:25,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2023-02-17 07:47:26,440 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 07:47:26,562 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 07:47:26,565 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2023-02-17 07:47:26,569 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28971d6f8/ab2dc7e750cf40cf940be86ba3b5f818/FLAGa4bb7c6de [2023-02-17 07:47:26,581 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28971d6f8/ab2dc7e750cf40cf940be86ba3b5f818 [2023-02-17 07:47:26,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 07:47:26,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 07:47:26,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 07:47:26,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 07:47:26,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 07:47:26,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6015369e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26, skipping insertion in model container [2023-02-17 07:47:26,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 07:47:26,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 07:47:26,728 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/prod4br-ll_valuebound20.c[524,537] [2023-02-17 07:47:26,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 07:47:26,746 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 07:47:26,754 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/prod4br-ll_valuebound20.c[524,537] [2023-02-17 07:47:26,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 07:47:26,768 INFO L208 MainTranslator]: Completed translation [2023-02-17 07:47:26,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26 WrapperNode [2023-02-17 07:47:26,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 07:47:26,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 07:47:26,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 07:47:26,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 07:47:26,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,788 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-02-17 07:47:26,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 07:47:26,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 07:47:26,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 07:47:26,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 07:47:26,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 07:47:26,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 07:47:26,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 07:47:26,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 07:47:26,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (1/1) ... [2023-02-17 07:47:26,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 07:47:26,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:26,831 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) [2023-02-17 07:47:26,833 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 [2023-02-17 07:47:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 07:47:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-17 07:47:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-17 07:47:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 07:47:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 07:47:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 07:47:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-17 07:47:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-17 07:47:26,898 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 07:47:26,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 07:47:27,064 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 07:47:27,067 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 07:47:27,068 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 07:47:27,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 07:47:27 BoogieIcfgContainer [2023-02-17 07:47:27,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 07:47:27,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 07:47:27,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 07:47:27,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 07:47:27,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 07:47:26" (1/3) ... [2023-02-17 07:47:27,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c68fee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 07:47:27, skipping insertion in model container [2023-02-17 07:47:27,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 07:47:26" (2/3) ... [2023-02-17 07:47:27,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c68fee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 07:47:27, skipping insertion in model container [2023-02-17 07:47:27,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 07:47:27" (3/3) ... [2023-02-17 07:47:27,074 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound20.c [2023-02-17 07:47:27,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 07:47:27,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 07:47:27,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 07:47:27,146 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;@5a6d318a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 07:47:27,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 07:47:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-17 07:47:27,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 07:47:27,154 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 07:47:27,155 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 07:47:27,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 07:47:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 07:47:27,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1472905330, now seen corresponding path program 1 times [2023-02-17 07:47:27,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 07:47:27,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677936804] [2023-02-17 07:47:27,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 07:47:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:27,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 07:47:27,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677936804] [2023-02-17 07:47:27,246 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-17 07:47:27,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116004930] [2023-02-17 07:47:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:27,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:27,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:27,248 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) [2023-02-17 07:47:27,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 07:47:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:27,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-17 07:47:27,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 07:47:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-17 07:47:27,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 07:47:27,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116004930] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 07:47:27,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 07:47:27,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 07:47:27,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575281004] [2023-02-17 07:47:27,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 07:47:27,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 07:47:27,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 07:47:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 07:47:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 07:47:27,343 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 07:47:27,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 07:47:27,358 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2023-02-17 07:47:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 07:47:27,359 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-02-17 07:47:27,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 07:47:27,365 INFO L225 Difference]: With dead ends: 55 [2023-02-17 07:47:27,365 INFO L226 Difference]: Without dead ends: 25 [2023-02-17 07:47:27,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 07:47:27,373 INFO L413 NwaCegarLoop]: 36 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, 36 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 [2023-02-17 07:47:27,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 07:47:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-17 07:47:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-17 07:47:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-17 07:47:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-02-17 07:47:27,409 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 24 [2023-02-17 07:47:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 07:47:27,410 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-02-17 07:47:27,410 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 07:47:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-02-17 07:47:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 07:47:27,411 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 07:47:27,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 07:47:27,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 07:47:27,613 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 [2023-02-17 07:47:27,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 07:47:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 07:47:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash 324198000, now seen corresponding path program 1 times [2023-02-17 07:47:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 07:47:27,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555899212] [2023-02-17 07:47:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:27,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 07:47:27,627 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 07:47:27,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783889294] [2023-02-17 07:47:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:27,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:27,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:27,629 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) [2023-02-17 07:47:27,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 07:47:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:27,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-17 07:47:27,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 07:47:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 07:47:27,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 07:47:27,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 07:47:27,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555899212] [2023-02-17 07:47:27,750 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 07:47:27,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783889294] [2023-02-17 07:47:27,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783889294] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 07:47:27,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 07:47:27,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-17 07:47:27,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588777854] [2023-02-17 07:47:27,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 07:47:27,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 07:47:27,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 07:47:27,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 07:47:27,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-17 07:47:27,753 INFO L87 Difference]: Start difference. First operand 25 states and 32 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, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-17 07:47:27,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 07:47:27,875 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2023-02-17 07:47:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 07:47:27,875 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, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-02-17 07:47:27,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 07:47:27,876 INFO L225 Difference]: With dead ends: 39 [2023-02-17 07:47:27,876 INFO L226 Difference]: Without dead ends: 37 [2023-02-17 07:47:27,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-17 07:47:27,878 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 07:47:27,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 76 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 07:47:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-17 07:47:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2023-02-17 07:47:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-17 07:47:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-02-17 07:47:27,884 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 24 [2023-02-17 07:47:27,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 07:47:27,884 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-02-17 07:47:27,885 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, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-17 07:47:27,885 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-02-17 07:47:27,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 07:47:27,885 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 07:47:27,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 07:47:27,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 07:47:28,090 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 [2023-02-17 07:47:28,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 07:47:28,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 07:47:28,091 INFO L85 PathProgramCache]: Analyzing trace with hash 693549193, now seen corresponding path program 1 times [2023-02-17 07:47:28,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 07:47:28,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122264966] [2023-02-17 07:47:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:28,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 07:47:28,101 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 07:47:28,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192393855] [2023-02-17 07:47:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:28,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:28,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:28,111 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) [2023-02-17 07:47:28,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 07:47:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:28,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-17 07:47:28,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 07:47:28,348 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 07:47:28,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 07:47:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 07:47:28,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 07:47:28,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122264966] [2023-02-17 07:47:28,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 07:47:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192393855] [2023-02-17 07:47:28,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192393855] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 07:47:28,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 07:47:28,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 16 [2023-02-17 07:47:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514696304] [2023-02-17 07:47:28,463 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 07:47:28,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-17 07:47:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 07:47:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-17 07:47:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-02-17 07:47:28,467 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-17 07:47:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 07:47:28,663 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-02-17 07:47:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-17 07:47:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-02-17 07:47:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 07:47:28,667 INFO L225 Difference]: With dead ends: 47 [2023-02-17 07:47:28,667 INFO L226 Difference]: Without dead ends: 43 [2023-02-17 07:47:28,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2023-02-17 07:47:28,670 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 44 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 07:47:28,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 91 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 07:47:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-17 07:47:28,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2023-02-17 07:47:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 29 states have internal predecessors, (34), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-17 07:47:28,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2023-02-17 07:47:28,690 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 30 [2023-02-17 07:47:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 07:47:28,690 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-02-17 07:47:28,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-17 07:47:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2023-02-17 07:47:28,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 07:47:28,691 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 07:47:28,692 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 07:47:28,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-17 07:47:28,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:28,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 07:47:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 07:47:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1087866724, now seen corresponding path program 1 times [2023-02-17 07:47:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 07:47:28,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222910314] [2023-02-17 07:47:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 07:47:28,914 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 07:47:28,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261935847] [2023-02-17 07:47:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:28,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:28,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:28,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 07:47:28,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 07:47:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:28,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-17 07:47:28,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 07:47:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 07:47:29,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 07:47:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 07:47:29,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 07:47:29,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222910314] [2023-02-17 07:47:29,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 07:47:29,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261935847] [2023-02-17 07:47:29,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261935847] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 07:47:29,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 07:47:29,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 17 [2023-02-17 07:47:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559521718] [2023-02-17 07:47:29,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 07:47:29,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 07:47:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 07:47:29,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 07:47:29,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-02-17 07:47:29,338 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-17 07:47:29,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 07:47:29,726 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2023-02-17 07:47:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-17 07:47:29,726 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 32 [2023-02-17 07:47:29,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 07:47:29,727 INFO L225 Difference]: With dead ends: 58 [2023-02-17 07:47:29,727 INFO L226 Difference]: Without dead ends: 54 [2023-02-17 07:47:29,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-02-17 07:47:29,728 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 73 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 07:47:29,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 85 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 07:47:29,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-17 07:47:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2023-02-17 07:47:29,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.206896551724138) internal successors, (35), 30 states have internal predecessors, (35), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-17 07:47:29,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2023-02-17 07:47:29,736 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 32 [2023-02-17 07:47:29,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 07:47:29,737 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2023-02-17 07:47:29,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-17 07:47:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-02-17 07:47:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-02-17 07:47:29,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 07:47:29,738 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 07:47:29,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 07:47:29,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:29,953 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 07:47:29,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 07:47:29,953 INFO L85 PathProgramCache]: Analyzing trace with hash 420635516, now seen corresponding path program 1 times [2023-02-17 07:47:29,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 07:47:29,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178789617] [2023-02-17 07:47:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:29,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 07:47:29,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 07:47:29,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849951965] [2023-02-17 07:47:29,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:29,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:29,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:29,965 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 07:47:29,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 07:47:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:30,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 07:47:30,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 07:47:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 07:47:30,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 07:47:30,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 07:47:30,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178789617] [2023-02-17 07:47:30,047 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 07:47:30,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849951965] [2023-02-17 07:47:30,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849951965] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 07:47:30,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 07:47:30,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-17 07:47:30,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985600953] [2023-02-17 07:47:30,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 07:47:30,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 07:47:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 07:47:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 07:47:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-02-17 07:47:30,049 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-17 07:47:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 07:47:30,113 INFO L93 Difference]: Finished difference Result 63 states and 78 transitions. [2023-02-17 07:47:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 07:47:30,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2023-02-17 07:47:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 07:47:30,114 INFO L225 Difference]: With dead ends: 63 [2023-02-17 07:47:30,114 INFO L226 Difference]: Without dead ends: 53 [2023-02-17 07:47:30,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-02-17 07:47:30,115 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 07:47:30,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 79 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 07:47:30,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-02-17 07:47:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2023-02-17 07:47:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 36 states have internal predecessors, (44), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-17 07:47:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2023-02-17 07:47:30,135 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 43 [2023-02-17 07:47:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 07:47:30,136 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2023-02-17 07:47:30,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-17 07:47:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2023-02-17 07:47:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-17 07:47:30,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 07:47:30,142 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 07:47:30,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 07:47:30,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:30,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 07:47:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 07:47:30,349 INFO L85 PathProgramCache]: Analyzing trace with hash 97606081, now seen corresponding path program 1 times [2023-02-17 07:47:30,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 07:47:30,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604419785] [2023-02-17 07:47:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 07:47:30,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 07:47:30,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491905292] [2023-02-17 07:47:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 07:47:30,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:30,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 07:47:30,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 07:47:30,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 07:47:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 07:47:30,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-17 07:47:30,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 07:47:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-17 07:47:30,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 07:47:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-17 07:47:30,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 07:47:30,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604419785] [2023-02-17 07:47:30,478 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 07:47:30,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491905292] [2023-02-17 07:47:30,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491905292] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 07:47:30,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 07:47:30,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-02-17 07:47:30,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838086178] [2023-02-17 07:47:30,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 07:47:30,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 07:47:30,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 07:47:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 07:47:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-02-17 07:47:30,479 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-17 07:47:30,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 07:47:30,604 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2023-02-17 07:47:30,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 07:47:30,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-02-17 07:47:30,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 07:47:30,604 INFO L225 Difference]: With dead ends: 50 [2023-02-17 07:47:30,604 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 07:47:30,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-02-17 07:47:30,605 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 07:47:30,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 99 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 07:47:30,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 07:47:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 07:47:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-17 07:47:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 07:47:30,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-02-17 07:47:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 07:47:30,606 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 07:47:30,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-17 07:47:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 07:47:30,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 07:47:30,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 07:47:30,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 07:47:30,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 07:47:30,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 07:47:30,818 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 07:47:30,820 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-02-17 07:47:30,822 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-02-17 07:47:30,822 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-02-17 07:47:30,822 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 07:47:30,822 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 60) the Hoare annotation is: true [2023-02-17 07:47:30,822 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 54) no Hoare annotation was computed. [2023-02-17 07:47:30,824 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 55) the Hoare annotation is: (let ((.cse6 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse5 (or .cse1 (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse1))) (.cse0 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse7 (or (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* (* 0 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~p~0#1|)) .cse6) (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) (>= |ULTIMATE.start_main_~p~0#1| 1))) (and (exists ((|ULTIMATE.start_main_~a~0#1| Int) (|ULTIMATE.start_main_~p~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* (* |ULTIMATE.start_main_~a~0#1| 0) |ULTIMATE.start_main_~p~0#1|)) .cse6) (>= |ULTIMATE.start_main_~p~0#1| 1))) (>= 0 |ULTIMATE.start_main_~y~0#1|))))) (or (and (= 0 .cse0) (let ((.cse2 (let ((.cse3 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~x~0#1| 20))) (or (and .cse3 .cse4 .cse5 (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse0 |ULTIMATE.start_main_~p~0#1|)) .cse6) .cse1 .cse7) (let ((.cse10 (= 0 (mod |ULTIMATE.start_main_~y~0#1| 2))) (.cse15 (< |ULTIMATE.start_main_~y~0#1| 0)) (.cse12 (= 0 (mod |ULTIMATE.start_main_~x~0#1| 2))) (.cse13 (< |ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse8 (or .cse12 (not .cse13))) (.cse9 (or .cse10 (not .cse15)))) (and .cse3 .cse4 (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse6 1)) .cse6) .cse5 .cse8 .cse1 .cse9 .cse7 .cse10 (let ((.cse11 (div |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse8 (= |ULTIMATE.start_main_~a~0#1| .cse11)) (and (not .cse12) (= |ULTIMATE.start_main_~a~0#1| (+ 1 .cse11)) .cse13))) (= |ULTIMATE.start_main_~p~0#1| (* 4 1)) .cse12 (let ((.cse14 (div |ULTIMATE.start_main_~y~0#1| 2))) (or (and (= |ULTIMATE.start_main_~b~0#1| (+ 1 .cse14)) (not .cse10) .cse15) (and (= |ULTIMATE.start_main_~b~0#1| .cse14) .cse9)))))))))) (or (and (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse1 .cse2) (and .cse1 .cse2)))) (and .cse5 (>= |ULTIMATE.start_main_~p~0#1| 1) .cse1 (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse0 |ULTIMATE.start_main_~p~0#1|)) .cse6) (>= |ULTIMATE.start_main_~p~0#1| 1))) (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse7)))) [2023-02-17 07:47:30,824 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 07:47:30,824 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 07:47:30,824 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 20)) [2023-02-17 07:47:30,825 INFO L895 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~x~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 20)) [2023-02-17 07:47:30,825 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (let ((.cse6 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse5 (or .cse1 (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse1))) (.cse0 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse7 (or (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* (* 0 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~p~0#1|)) .cse6) (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) (>= |ULTIMATE.start_main_~p~0#1| 1))) (and (exists ((|ULTIMATE.start_main_~a~0#1| Int) (|ULTIMATE.start_main_~p~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* (* |ULTIMATE.start_main_~a~0#1| 0) |ULTIMATE.start_main_~p~0#1|)) .cse6) (>= |ULTIMATE.start_main_~p~0#1| 1))) (>= 0 |ULTIMATE.start_main_~y~0#1|))))) (or (and (= 0 .cse0) (let ((.cse2 (let ((.cse3 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~x~0#1| 20))) (or (and .cse3 .cse4 .cse5 (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse0 |ULTIMATE.start_main_~p~0#1|)) .cse6) .cse1 .cse7) (let ((.cse10 (= 0 (mod |ULTIMATE.start_main_~y~0#1| 2))) (.cse15 (< |ULTIMATE.start_main_~y~0#1| 0)) (.cse12 (= 0 (mod |ULTIMATE.start_main_~x~0#1| 2))) (.cse13 (< |ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse8 (or .cse12 (not .cse13))) (.cse9 (or .cse10 (not .cse15)))) (and .cse3 .cse4 (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse6 1)) .cse6) .cse5 .cse8 .cse1 .cse9 .cse7 .cse10 (let ((.cse11 (div |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse8 (= |ULTIMATE.start_main_~a~0#1| .cse11)) (and (not .cse12) (= |ULTIMATE.start_main_~a~0#1| (+ 1 .cse11)) .cse13))) (= |ULTIMATE.start_main_~p~0#1| (* 4 1)) .cse12 (let ((.cse14 (div |ULTIMATE.start_main_~y~0#1| 2))) (or (and (= |ULTIMATE.start_main_~b~0#1| (+ 1 .cse14)) (not .cse10) .cse15) (and (= |ULTIMATE.start_main_~b~0#1| .cse14) .cse9)))))))))) (or (and (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse1 .cse2) (and .cse1 .cse2)))) (and .cse5 (>= |ULTIMATE.start_main_~p~0#1| 1) .cse1 (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse0 |ULTIMATE.start_main_~p~0#1|)) .cse6) (>= |ULTIMATE.start_main_~p~0#1| 1))) (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse7)))) [2023-02-17 07:47:30,825 INFO L902 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true [2023-02-17 07:47:30,825 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-02-17 07:47:30,825 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 54) no Hoare annotation was computed. [2023-02-17 07:47:30,826 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 34 55) the Hoare annotation is: (let ((.cse9 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse10 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse5 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 20)) (.cse7 (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse9 |ULTIMATE.start_main_~p~0#1|)) .cse10)) (.cse1 (not (= 0 |ULTIMATE.start_main_~b~0#1|))) (.cse3 (not (= 0 |ULTIMATE.start_main_~a~0#1|))) (.cse2 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse4 (let ((.cse20 (or (and (or (and .cse1 .cse3) (= |ULTIMATE.start_main_~q~0#1| .cse10)) .cse2) .cse2))) (or (let ((.cse12 (= 0 (mod |ULTIMATE.start_main_~y~0#1| 2))) (.cse19 (< |ULTIMATE.start_main_~y~0#1| 0)) (.cse15 (= 0 (mod |ULTIMATE.start_main_~x~0#1| 2))) (.cse16 (< |ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse13 (or .cse15 (not .cse16))) (.cse17 (or .cse12 (not .cse19)))) (and .cse5 .cse12 .cse6 (let ((.cse14 (div |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse13 (= |ULTIMATE.start_main_~a~0#1| .cse14)) (and (not .cse15) (= |ULTIMATE.start_main_~a~0#1| (+ 1 .cse14)) .cse16))) (= |ULTIMATE.start_main_~p~0#1| (* 4 1)) (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse10 1)) .cse10) .cse13 .cse2 .cse17 .cse15 (let ((.cse18 (div |ULTIMATE.start_main_~y~0#1| 2))) (or (and (= |ULTIMATE.start_main_~b~0#1| (+ 1 .cse18)) (not .cse12) .cse19) (and (= |ULTIMATE.start_main_~b~0#1| .cse18) .cse17))) .cse20))) (and .cse5 .cse6 .cse7 .cse2 .cse20)))) (.cse0 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse8 (>= |ULTIMATE.start_main_~p~0#1| 1)) (.cse11 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 .cse5 .cse6 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) .cse7 (= |ULTIMATE.start_main_~q~0#1| 0) .cse2 .cse8 (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse9 |ULTIMATE.start_main_~p~0#1|)) .cse10) (>= |ULTIMATE.start_main_~p~0#1| 1))) .cse11) (and .cse2 .cse4) (and .cse0 .cse2 .cse4) (and .cse0 .cse5 .cse6 .cse7 .cse2 .cse8 .cse11))))) [2023-02-17 07:47:30,826 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse9 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse10 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse5 (>= |ULTIMATE.start_main_~x~0#1| 0)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 20)) (.cse7 (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse9 |ULTIMATE.start_main_~p~0#1|)) .cse10)) (.cse1 (not (= 0 |ULTIMATE.start_main_~b~0#1|))) (.cse3 (not (= 0 |ULTIMATE.start_main_~a~0#1|))) (.cse2 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse8 (>= |ULTIMATE.start_main_~p~0#1| 1)) (.cse11 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse4 (let ((.cse20 (or (and (or (and .cse1 .cse3) (= |ULTIMATE.start_main_~q~0#1| .cse10)) .cse2) .cse2))) (or (let ((.cse12 (= 0 (mod |ULTIMATE.start_main_~y~0#1| 2))) (.cse19 (< |ULTIMATE.start_main_~y~0#1| 0)) (.cse15 (= 0 (mod |ULTIMATE.start_main_~x~0#1| 2))) (.cse16 (< |ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse13 (or .cse15 (not .cse16))) (.cse17 (or .cse12 (not .cse19)))) (and .cse5 .cse12 .cse6 (let ((.cse14 (div |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse13 (= |ULTIMATE.start_main_~a~0#1| .cse14)) (and (not .cse15) (= |ULTIMATE.start_main_~a~0#1| (+ 1 .cse14)) .cse16))) (= |ULTIMATE.start_main_~p~0#1| (* 4 1)) (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse10 1)) .cse10) .cse13 .cse2 .cse17 .cse15 (let ((.cse18 (div |ULTIMATE.start_main_~y~0#1| 2))) (or (and (= |ULTIMATE.start_main_~b~0#1| (+ 1 .cse18)) (not .cse12) .cse19) (and (= |ULTIMATE.start_main_~b~0#1| .cse18) .cse17))) .cse20))) (and .cse5 .cse6 .cse7 .cse2 .cse20))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 .cse5 .cse6 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) .cse7 (= |ULTIMATE.start_main_~q~0#1| 0) .cse2 .cse8 (exists ((|ULTIMATE.start_main_~p~0#1| Int)) (and (= (+ |ULTIMATE.start_main_~q~0#1| (* .cse9 |ULTIMATE.start_main_~p~0#1|)) .cse10) (>= |ULTIMATE.start_main_~p~0#1| 1))) .cse11) (and .cse2 .cse4) (and .cse0 .cse5 .cse6 .cse7 .cse2 .cse8 .cse11) (and .cse0 .cse2 .cse4))))) [2023-02-17 07:47:30,826 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 55) no Hoare annotation was computed. [2023-02-17 07:47:30,826 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-02-17 07:47:30,826 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-02-17 07:47:30,826 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-02-17 07:47:30,827 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-02-17 07:47:30,827 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-02-17 07:47:30,827 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-02-17 07:47:30,827 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-02-17 07:47:30,827 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-02-17 07:47:30,827 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-02-17 07:47:30,827 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-02-17 07:47:30,830 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-17 07:47:30,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 07:47:30,839 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,840 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,851 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,852 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 07:47:30 BoogieIcfgContainer [2023-02-17 07:47:30,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 07:47:30,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 07:47:30,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 07:47:30,857 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 07:47:30,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 07:47:27" (3/4) ... [2023-02-17 07:47:30,859 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 07:47:30,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-17 07:47:30,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-17 07:47:30,866 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-17 07:47:30,866 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 07:47:30,866 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 07:47:30,866 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 07:47:30,882 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= b && !(0 == b)) && y >= 1) && !(0 == a)) && ((((((((((((x >= 0 && 0 == y % 2) && x <= 20) && (((0 == x % 2 || !(x < 0)) && a == x / 2) || ((!(0 == x % 2) && a == 1 + x / 2) && x < 0))) && p == 4 * 1) && q + x * y * 1 == x * y) && (0 == x % 2 || !(x < 0))) && y >= 1) && (0 == y % 2 || !(y < 0))) && 0 == x % 2) && (((b == 1 + y / 2 && !(0 == y % 2)) && y < 0) || (b == y / 2 && (0 == y % 2 || !(y < 0))))) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)) || ((((x >= 0 && x <= 20) && q + a * b * p == x * y) && y >= 1) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)))) || (((((((((((b == y && 1 <= b) && x >= 0) && x <= 20) && a == x) && p == 1) && q + a * b * p == x * y) && q == 0) && y >= 1) && p >= 1) && (\exists ULTIMATE.start_main_~p~0#1 : int :: q + a * b * ULTIMATE.start_main_~p~0#1 == x * y && ULTIMATE.start_main_~p~0#1 >= 1)) && b >= y)) || (y >= 1 && ((((((((((((x >= 0 && 0 == y % 2) && x <= 20) && (((0 == x % 2 || !(x < 0)) && a == x / 2) || ((!(0 == x % 2) && a == 1 + x / 2) && x < 0))) && p == 4 * 1) && q + x * y * 1 == x * y) && (0 == x % 2 || !(x < 0))) && y >= 1) && (0 == y % 2 || !(y < 0))) && 0 == x % 2) && (((b == 1 + y / 2 && !(0 == y % 2)) && y < 0) || (b == y / 2 && (0 == y % 2 || !(y < 0))))) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)) || ((((x >= 0 && x <= 20) && q + a * b * p == x * y) && y >= 1) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1))))) || ((1 <= b && y >= 1) && ((((((((((((x >= 0 && 0 == y % 2) && x <= 20) && (((0 == x % 2 || !(x < 0)) && a == x / 2) || ((!(0 == x % 2) && a == 1 + x / 2) && x < 0))) && p == 4 * 1) && q + x * y * 1 == x * y) && (0 == x % 2 || !(x < 0))) && y >= 1) && (0 == y % 2 || !(y < 0))) && 0 == x % 2) && (((b == 1 + y / 2 && !(0 == y % 2)) && y < 0) || (b == y / 2 && (0 == y % 2 || !(y < 0))))) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)) || ((((x >= 0 && x <= 20) && q + a * b * p == x * y) && y >= 1) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1))))) || ((((((1 <= b && x >= 0) && x <= 20) && q + a * b * p == x * y) && y >= 1) && p >= 1) && b >= y) [2023-02-17 07:47:30,890 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 07:47:30,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 07:47:30,891 INFO L158 Benchmark]: Toolchain (without parser) took 4306.61ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 98.3MB in the beginning and 80.3MB in the end (delta: 18.1MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2023-02-17 07:47:30,891 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 07:47:30,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.30ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 109.7MB in the end (delta: -11.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-17 07:47:30,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.19ms. Allocated memory is still 144.7MB. Free memory was 109.7MB in the beginning and 107.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 07:47:30,892 INFO L158 Benchmark]: Boogie Preprocessor took 14.62ms. Allocated memory is still 144.7MB. Free memory was 107.1MB in the beginning and 106.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 07:47:30,892 INFO L158 Benchmark]: RCFGBuilder took 264.40ms. Allocated memory is still 144.7MB. Free memory was 106.1MB in the beginning and 94.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-17 07:47:30,892 INFO L158 Benchmark]: TraceAbstraction took 3785.85ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 93.5MB in the beginning and 82.4MB in the end (delta: 11.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2023-02-17 07:47:30,893 INFO L158 Benchmark]: Witness Printer took 34.51ms. Allocated memory is still 174.1MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 07:47:30,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.30ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 109.7MB in the end (delta: -11.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.19ms. Allocated memory is still 144.7MB. Free memory was 109.7MB in the beginning and 107.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.62ms. Allocated memory is still 144.7MB. Free memory was 107.1MB in the beginning and 106.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.40ms. Allocated memory is still 144.7MB. Free memory was 106.1MB in the beginning and 94.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3785.85ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 93.5MB in the beginning and 82.4MB in the end (delta: 11.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 34.51ms. Allocated memory is still 174.1MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 466 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 326 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 730 IncrementalHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 140 mSDtfsCounter, 730 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 238 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=5, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 27 PreInvPairs, 44 NumberOfFragments, 2694 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 296 ConstructedInterpolants, 2 QuantifiedInterpolants, 1651 SizeOfPredicates, 27 NumberOfNonLiveVariables, 570 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 168/183 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2023-02-17 07:47:30,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,910 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,914 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] [2023-02-17 07:47:30,916 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0#1,QUANTIFIED] Derived loop invariant: (((((((1 <= b && !(0 == b)) && y >= 1) && !(0 == a)) && ((((((((((((x >= 0 && 0 == y % 2) && x <= 20) && (((0 == x % 2 || !(x < 0)) && a == x / 2) || ((!(0 == x % 2) && a == 1 + x / 2) && x < 0))) && p == 4 * 1) && q + x * y * 1 == x * y) && (0 == x % 2 || !(x < 0))) && y >= 1) && (0 == y % 2 || !(y < 0))) && 0 == x % 2) && (((b == 1 + y / 2 && !(0 == y % 2)) && y < 0) || (b == y / 2 && (0 == y % 2 || !(y < 0))))) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)) || ((((x >= 0 && x <= 20) && q + a * b * p == x * y) && y >= 1) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)))) || (((((((((((b == y && 1 <= b) && x >= 0) && x <= 20) && a == x) && p == 1) && q + a * b * p == x * y) && q == 0) && y >= 1) && p >= 1) && (\exists ULTIMATE.start_main_~p~0#1 : int :: q + a * b * ULTIMATE.start_main_~p~0#1 == x * y && ULTIMATE.start_main_~p~0#1 >= 1)) && b >= y)) || (y >= 1 && ((((((((((((x >= 0 && 0 == y % 2) && x <= 20) && (((0 == x % 2 || !(x < 0)) && a == x / 2) || ((!(0 == x % 2) && a == 1 + x / 2) && x < 0))) && p == 4 * 1) && q + x * y * 1 == x * y) && (0 == x % 2 || !(x < 0))) && y >= 1) && (0 == y % 2 || !(y < 0))) && 0 == x % 2) && (((b == 1 + y / 2 && !(0 == y % 2)) && y < 0) || (b == y / 2 && (0 == y % 2 || !(y < 0))))) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)) || ((((x >= 0 && x <= 20) && q + a * b * p == x * y) && y >= 1) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1))))) || ((1 <= b && y >= 1) && ((((((((((((x >= 0 && 0 == y % 2) && x <= 20) && (((0 == x % 2 || !(x < 0)) && a == x / 2) || ((!(0 == x % 2) && a == 1 + x / 2) && x < 0))) && p == 4 * 1) && q + x * y * 1 == x * y) && (0 == x % 2 || !(x < 0))) && y >= 1) && (0 == y % 2 || !(y < 0))) && 0 == x % 2) && (((b == 1 + y / 2 && !(0 == y % 2)) && y < 0) || (b == y / 2 && (0 == y % 2 || !(y < 0))))) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1)) || ((((x >= 0 && x <= 20) && q + a * b * p == x * y) && y >= 1) && ((((!(0 == b) && !(0 == a)) || q == x * y) && y >= 1) || y >= 1))))) || ((((((1 <= b && x >= 0) && x <= 20) && q + a * b * p == x * y) && y >= 1) && p >= 1) && b >= y) RESULT: Ultimate proved your program to be correct! [2023-02-17 07:47:30,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE