./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.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/cohendiv-ll_valuebound5.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 fc77cb5fe4af5100e01bafbf150d5df54332b351a9f9d4040d6b54bbf20f5710 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 06:54:42,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 06:54:42,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 06:54:42,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 06:54:42,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 06:54:42,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 06:54:42,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 06:54:42,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 06:54:42,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 06:54:42,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 06:54:42,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 06:54:42,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 06:54:42,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 06:54:42,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 06:54:42,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 06:54:42,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 06:54:42,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 06:54:42,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 06:54:42,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 06:54:42,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 06:54:42,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 06:54:42,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 06:54:42,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 06:54:42,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 06:54:42,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 06:54:42,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 06:54:42,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 06:54:42,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 06:54:42,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 06:54:42,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 06:54:42,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 06:54:42,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 06:54:42,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 06:54:42,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 06:54:42,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 06:54:42,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 06:54:42,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 06:54:42,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 06:54:42,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 06:54:42,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 06:54:42,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 06:54:42,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 06:54:42,605 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 06:54:42,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 06:54:42,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 06:54:42,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 06:54:42,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 06:54:42,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 06:54:42,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 06:54:42,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 06:54:42,607 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 06:54:42,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 06:54:42,607 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 06:54:42,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 06:54:42,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 06:54:42,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 06:54:42,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 06:54:42,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 06:54:42,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 06:54:42,608 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 06:54:42,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 06:54:42,609 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 06:54:42,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 06:54:42,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 06:54:42,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 06:54:42,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 06:54:42,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:54:42,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 06:54:42,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 06:54:42,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 06:54:42,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 06:54:42,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 06:54:42,610 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 06:54:42,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 06:54:42,611 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 06:54:42,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 06:54:42,611 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 06:54:42,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc77cb5fe4af5100e01bafbf150d5df54332b351a9f9d4040d6b54bbf20f5710 [2023-02-17 06:54:42,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 06:54:42,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 06:54:42,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 06:54:42,871 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 06:54:42,871 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 06:54:42,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2023-02-17 06:54:44,061 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 06:54:44,241 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 06:54:44,241 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2023-02-17 06:54:44,246 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3f7a1f2/a660a3f4b55b4b65beb684a6f0737a3c/FLAG9dccc8e82 [2023-02-17 06:54:44,257 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3f7a1f2/a660a3f4b55b4b65beb684a6f0737a3c [2023-02-17 06:54:44,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 06:54:44,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 06:54:44,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 06:54:44,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 06:54:44,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 06:54:44,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b57501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44, skipping insertion in model container [2023-02-17 06:54:44,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 06:54:44,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 06:54:44,396 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/cohendiv-ll_valuebound5.c[576,589] [2023-02-17 06:54:44,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:54:44,419 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 06:54:44,429 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/cohendiv-ll_valuebound5.c[576,589] [2023-02-17 06:54:44,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:54:44,446 INFO L208 MainTranslator]: Completed translation [2023-02-17 06:54:44,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44 WrapperNode [2023-02-17 06:54:44,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 06:54:44,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 06:54:44,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 06:54:44,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 06:54:44,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,478 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-02-17 06:54:44,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 06:54:44,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 06:54:44,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 06:54:44,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 06:54:44,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,493 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 06:54:44,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 06:54:44,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 06:54:44,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 06:54:44,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (1/1) ... [2023-02-17 06:54:44,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:54:44,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:44,528 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 06:54:44,538 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 06:54:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 06:54:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-17 06:54:44,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-17 06:54:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 06:54:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 06:54:44,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 06:54:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-17 06:54:44,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-17 06:54:44,632 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 06:54:44,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 06:54:44,830 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 06:54:44,845 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 06:54:44,845 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-17 06:54:44,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:54:44 BoogieIcfgContainer [2023-02-17 06:54:44,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 06:54:44,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 06:54:44,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 06:54:44,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 06:54:44,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 06:54:44" (1/3) ... [2023-02-17 06:54:44,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700bf73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:54:44, skipping insertion in model container [2023-02-17 06:54:44,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:54:44" (2/3) ... [2023-02-17 06:54:44,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700bf73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:54:44, skipping insertion in model container [2023-02-17 06:54:44,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:54:44" (3/3) ... [2023-02-17 06:54:44,853 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound5.c [2023-02-17 06:54:44,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 06:54:44,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 06:54:44,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 06:54:44,950 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;@32091a85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 06:54:44,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 06:54:44,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-17 06:54:44,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 06:54:44,961 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:44,961 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 06:54:44,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:44,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:44,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1389076267, now seen corresponding path program 1 times [2023-02-17 06:54:44,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:44,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785723605] [2023-02-17 06:54:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:44,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:45,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:45,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785723605] [2023-02-17 06:54:45,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-17 06:54:45,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909994897] [2023-02-17 06:54:45,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:45,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:45,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:45,099 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 06:54:45,100 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 06:54:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:45,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-17 06:54:45,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:45,187 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 06:54:45,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 06:54:45,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909994897] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:54:45,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:54:45,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 06:54:45,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528949159] [2023-02-17 06:54:45,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:54:45,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 06:54:45,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:45,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 06:54:45,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 06:54:45,237 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) 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 06:54:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:45,261 INFO L93 Difference]: Finished difference Result 65 states and 104 transitions. [2023-02-17 06:54:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 06:54:45,263 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 06:54:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:45,269 INFO L225 Difference]: With dead ends: 65 [2023-02-17 06:54:45,269 INFO L226 Difference]: Without dead ends: 30 [2023-02-17 06:54:45,271 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 06:54:45,274 INFO L413 NwaCegarLoop]: 43 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, 43 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 06:54:45,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:54:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-17 06:54:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-17 06:54:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-17 06:54:45,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-02-17 06:54:45,310 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 24 [2023-02-17 06:54:45,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:45,310 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-02-17 06:54:45,311 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 06:54:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-02-17 06:54:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 06:54:45,316 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:45,317 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 06:54:45,327 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 06:54:45,517 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 06:54:45,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:45,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:45,519 INFO L85 PathProgramCache]: Analyzing trace with hash 240368937, now seen corresponding path program 1 times [2023-02-17 06:54:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:45,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144493042] [2023-02-17 06:54:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:45,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:45,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 06:54:45,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918159666] [2023-02-17 06:54:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:45,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:45,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:45,540 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 06:54:45,555 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 06:54:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:45,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-17 06:54:45,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:45,690 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 06:54:45,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 06:54:45,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:45,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144493042] [2023-02-17 06:54:45,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 06:54:45,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918159666] [2023-02-17 06:54:45,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918159666] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:54:45,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:54:45,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-17 06:54:45,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756468531] [2023-02-17 06:54:45,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:54:45,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 06:54:45,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:45,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 06:54:45,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-02-17 06:54:45,695 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 06:54:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:45,814 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2023-02-17 06:54:45,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-17 06:54:45,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-02-17 06:54:45,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:45,815 INFO L225 Difference]: With dead ends: 41 [2023-02-17 06:54:45,816 INFO L226 Difference]: Without dead ends: 39 [2023-02-17 06:54:45,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-02-17 06:54:45,817 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 27 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:54:45,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 133 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:54:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-17 06:54:45,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2023-02-17 06:54:45,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-17 06:54:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2023-02-17 06:54:45,828 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 24 [2023-02-17 06:54:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:45,829 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2023-02-17 06:54:45,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 06:54:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2023-02-17 06:54:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 06:54:45,830 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:45,831 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] [2023-02-17 06:54:45,837 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 06:54:46,036 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 06:54:46,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:46,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:46,037 INFO L85 PathProgramCache]: Analyzing trace with hash -854318377, now seen corresponding path program 1 times [2023-02-17 06:54:46,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:46,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445409746] [2023-02-17 06:54:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:46,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:46,053 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 06:54:46,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16948261] [2023-02-17 06:54:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:46,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:46,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:46,062 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 06:54:46,064 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 06:54:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:46,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-17 06:54:46,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:46,249 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 06:54:46,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:54:46,320 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 06:54:46,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:46,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445409746] [2023-02-17 06:54:46,321 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 06:54:46,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16948261] [2023-02-17 06:54:46,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16948261] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 06:54:46,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 06:54:46,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2023-02-17 06:54:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401460970] [2023-02-17 06:54:46,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:54:46,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 06:54:46,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:46,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 06:54:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-17 06:54:46,325 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-17 06:54:46,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:46,423 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2023-02-17 06:54:46,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 06:54:46,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2023-02-17 06:54:46,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:46,427 INFO L225 Difference]: With dead ends: 53 [2023-02-17 06:54:46,427 INFO L226 Difference]: Without dead ends: 50 [2023-02-17 06:54:46,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-02-17 06:54:46,431 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:54:46,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 118 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:54:46,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-17 06:54:46,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2023-02-17 06:54:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 29 states have internal predecessors, (32), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-17 06:54:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2023-02-17 06:54:46,456 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 29 [2023-02-17 06:54:46,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:46,457 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2023-02-17 06:54:46,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-17 06:54:46,457 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2023-02-17 06:54:46,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-17 06:54:46,458 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:46,458 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 06:54:46,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 06:54:46,665 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 06:54:46,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:46,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:46,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1997084946, now seen corresponding path program 1 times [2023-02-17 06:54:46,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:46,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554621391] [2023-02-17 06:54:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:46,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:46,682 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 06:54:46,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476648345] [2023-02-17 06:54:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:46,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:46,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:46,685 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 06:54:46,693 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 06:54:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:46,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-17 06:54:46,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-17 06:54:46,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:54:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-17 06:54:46,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:46,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554621391] [2023-02-17 06:54:46,778 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 06:54:46,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476648345] [2023-02-17 06:54:46,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476648345] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 06:54:46,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 06:54:46,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-02-17 06:54:46,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075600689] [2023-02-17 06:54:46,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:54:46,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 06:54:46,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:46,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 06:54:46,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-02-17 06:54:46,780 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 06:54:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:46,833 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2023-02-17 06:54:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 06:54:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2023-02-17 06:54:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:46,835 INFO L225 Difference]: With dead ends: 55 [2023-02-17 06:54:46,835 INFO L226 Difference]: Without dead ends: 53 [2023-02-17 06:54:46,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-17 06:54:46,837 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 11 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:54:46,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 85 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:54:46,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-02-17 06:54:46,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-02-17 06:54:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 32 states have internal predecessors, (35), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-17 06:54:46,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2023-02-17 06:54:46,847 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 36 [2023-02-17 06:54:46,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:46,848 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2023-02-17 06:54:46,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 06:54:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2023-02-17 06:54:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-17 06:54:46,849 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:46,849 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:54:46,861 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 06:54:47,056 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 06:54:47,056 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:47,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2056573358, now seen corresponding path program 1 times [2023-02-17 06:54:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:47,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59694257] [2023-02-17 06:54:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:47,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:47,082 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 06:54:47,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356052958] [2023-02-17 06:54:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:47,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:47,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:47,088 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 06:54:47,113 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 06:54:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:47,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 06:54:47,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-02-17 06:54:47,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 06:54:47,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:47,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59694257] [2023-02-17 06:54:47,195 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 06:54:47,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356052958] [2023-02-17 06:54:47,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356052958] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:54:47,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:54:47,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-17 06:54:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546103723] [2023-02-17 06:54:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:54:47,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 06:54:47,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 06:54:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-17 06:54:47,198 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-17 06:54:47,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:47,301 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2023-02-17 06:54:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 06:54:47,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 46 [2023-02-17 06:54:47,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:47,305 INFO L225 Difference]: With dead ends: 59 [2023-02-17 06:54:47,305 INFO L226 Difference]: Without dead ends: 57 [2023-02-17 06:54:47,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-17 06:54:47,307 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:54:47,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 132 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:54:47,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-17 06:54:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-02-17 06:54:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-17 06:54:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2023-02-17 06:54:47,333 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 46 [2023-02-17 06:54:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2023-02-17 06:54:47,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-17 06:54:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2023-02-17 06:54:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-17 06:54:47,339 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:47,339 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:54:47,347 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 06:54:47,545 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 06:54:47,545 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2085516536, now seen corresponding path program 1 times [2023-02-17 06:54:47,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:47,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157333068] [2023-02-17 06:54:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:47,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:47,557 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 06:54:47,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225029725] [2023-02-17 06:54:47,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:47,561 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 06:54:47,564 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 06:54:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:47,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-17 06:54:47,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 06:54:47,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:54:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 06:54:47,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:47,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157333068] [2023-02-17 06:54:47,806 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 06:54:47,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225029725] [2023-02-17 06:54:47,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225029725] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:54:47,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 06:54:47,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2023-02-17 06:54:47,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145821237] [2023-02-17 06:54:47,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 06:54:47,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-17 06:54:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-17 06:54:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-17 06:54:47,811 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 14 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-02-17 06:54:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:48,075 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2023-02-17 06:54:48,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-17 06:54:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 52 [2023-02-17 06:54:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:48,079 INFO L225 Difference]: With dead ends: 75 [2023-02-17 06:54:48,079 INFO L226 Difference]: Without dead ends: 73 [2023-02-17 06:54:48,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-02-17 06:54:48,080 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 06:54:48,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 158 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 06:54:48,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-17 06:54:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2023-02-17 06:54:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 16 states have call successors, (16), 7 states have call predecessors, (16), 7 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-17 06:54:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2023-02-17 06:54:48,095 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 52 [2023-02-17 06:54:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:48,095 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2023-02-17 06:54:48,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-02-17 06:54:48,096 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-02-17 06:54:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-02-17 06:54:48,097 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:54:48,097 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:54:48,105 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 06:54:48,305 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 06:54:48,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:54:48,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:54:48,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1724367982, now seen corresponding path program 1 times [2023-02-17 06:54:48,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:54:48,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374744408] [2023-02-17 06:54:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:48,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:54:48,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 06:54:48,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700402338] [2023-02-17 06:54:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:54:48,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:48,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:54:48,319 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:54:48,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 06:54:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:54:48,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-17 06:54:48,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:54:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-02-17 06:54:48,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:54:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-02-17 06:54:48,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:54:48,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374744408] [2023-02-17 06:54:48,608 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 06:54:48,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700402338] [2023-02-17 06:54:48,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700402338] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 06:54:48,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 06:54:48,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-02-17 06:54:48,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684864742] [2023-02-17 06:54:48,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:54:48,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 06:54:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:54:48,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 06:54:48,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-02-17 06:54:48,610 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-17 06:54:48,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:54:48,751 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2023-02-17 06:54:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 06:54:48,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 59 [2023-02-17 06:54:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:54:48,752 INFO L225 Difference]: With dead ends: 61 [2023-02-17 06:54:48,752 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 06:54:48,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-02-17 06:54:48,754 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:54:48,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 85 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:54:48,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 06:54:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 06:54:48,754 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 06:54:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 06:54:48,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-02-17 06:54:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:54:48,755 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 06:54:48,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-17 06:54:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 06:54:48,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 06:54:48,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 06:54:48,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 06:54:48,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:54:48,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 06:54:48,979 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-02-17 06:54:48,980 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-02-17 06:54:48,980 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2023-02-17 06:54:48,980 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-02-17 06:54:48,982 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (let ((.cse7 (>= |ULTIMATE.start_main_~r~0#1| 0)) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse3 (<= 1 |ULTIMATE.start_main_~r~0#1|)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse0 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|))))) (.cse6 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6)) .cse6) (and (or (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse5)) .cse0 .cse6))) [2023-02-17 06:54:48,982 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse7 (>= |ULTIMATE.start_main_~r~0#1| 0)) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse3 (<= 1 |ULTIMATE.start_main_~r~0#1|)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse0 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|))))) (.cse6 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6)) .cse6) (and (or (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse5)) .cse0 .cse6))) [2023-02-17 06:54:48,982 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 66) the Hoare annotation is: true [2023-02-17 06:54:48,983 INFO L899 garLoopResultBuilder]: For program point L40(lines 38 62) no Hoare annotation was computed. [2023-02-17 06:54:48,983 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 06:54:48,983 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 06:54:48,984 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse7 (>= |ULTIMATE.start_main_~r~0#1| 0)) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse3 (<= 1 |ULTIMATE.start_main_~r~0#1|)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse0 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|))))) (.cse6 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6)) .cse6) (and (or (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse5)) .cse0 .cse6))) [2023-02-17 06:54:48,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 06:54:48,984 INFO L902 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2023-02-17 06:54:48,984 INFO L895 garLoopResultBuilder]: At program point L29-1(line 29) the Hoare annotation is: (and (>= |ULTIMATE.start_main_~y~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 5)) [2023-02-17 06:54:48,984 INFO L899 garLoopResultBuilder]: For program point L50(lines 47 59) no Hoare annotation was computed. [2023-02-17 06:54:48,984 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 06:54:48,985 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse0 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse2 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|))))) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse4 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse5 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_main_~a~0#1| 0) .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| 0) .cse4 .cse5))) [2023-02-17 06:54:48,985 INFO L895 garLoopResultBuilder]: At program point L38-3(lines 38 62) the Hoare annotation is: (let ((.cse1 (>= |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse0 (let ((.cse3 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| 5))) (or (and .cse3 .cse4 .cse1) (and (= |ULTIMATE.start_main_~a~0#1| 0) .cse3 .cse4 .cse1 (= |ULTIMATE.start_main_~b~0#1| 0))))) (.cse2 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|)))) .cse1 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|)) .cse2) (and .cse0 .cse2)))) [2023-02-17 06:54:48,987 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (and (>= |ULTIMATE.start_main_~y~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= 1 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|)))) (>= |ULTIMATE.start_main_~y~0#1| 1) (>= |ULTIMATE.start_main_~r~0#1| 0) (>= |ULTIMATE.start_main_~r~0#1| (* 2 .cse0)) (= |ULTIMATE.start_main_~b~0#1| .cse0) (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) [2023-02-17 06:54:48,987 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-02-17 06:54:48,987 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse7 (>= |ULTIMATE.start_main_~r~0#1| 0)) (.cse1 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse3 (<= 1 |ULTIMATE.start_main_~r~0#1|)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse0 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|))))) (.cse6 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6)) .cse6) (and (or (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse5) (and .cse1 .cse2 .cse3 .cse4 .cse5)) .cse0 .cse6))) [2023-02-17 06:54:48,987 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2023-02-17 06:54:48,987 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (let ((.cse0 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse2 (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|))))) (.cse3 (>= |ULTIMATE.start_main_~y~0#1| 1)) (.cse4 (= |ULTIMATE.start_main_~b~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse5 (= |ULTIMATE.start_main_~x~0#1| (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_main_~a~0#1| 0) .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| 0) .cse4 .cse5))) [2023-02-17 06:54:48,987 INFO L895 garLoopResultBuilder]: At program point L39-1(line 39) the Hoare annotation is: (let ((.cse2 (>= |ULTIMATE.start_main_~y~0#1| 1))) (and (let ((.cse0 (>= |ULTIMATE.start_main_~y~0#1| 0)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 5))) (or (and .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~a~0#1| 0) .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~b~0#1| 0)))) (= |ULTIMATE.start_main_~x~0#1| (+ (* (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~b~0#1|)))) .cse2 (= |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_~q~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~r~0#1|)))) [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-02-17 06:54:48,988 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-02-17 06:54:48,988 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-02-17 06:54:48,989 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-02-17 06:54:48,989 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2023-02-17 06:54:48,993 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:54:48,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 06:54:49,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 06:54:49 BoogieIcfgContainer [2023-02-17 06:54:49,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 06:54:49,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 06:54:49,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 06:54:49,027 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 06:54:49,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:54:44" (3/4) ... [2023-02-17 06:54:49,030 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 06:54:49,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-17 06:54:49,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-17 06:54:49,040 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-17 06:54:49,040 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 06:54:49,040 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 06:54:49,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 06:54:49,074 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 06:54:49,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 06:54:49,076 INFO L158 Benchmark]: Toolchain (without parser) took 4815.00ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 122.1MB in the beginning and 84.0MB in the end (delta: 38.1MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2023-02-17 06:54:49,076 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 86.4MB in the end (delta: 19.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 06:54:49,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.07ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 111.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 06:54:49,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.39ms. Allocated memory is still 165.7MB. Free memory was 111.7MB in the beginning and 110.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 06:54:49,077 INFO L158 Benchmark]: Boogie Preprocessor took 16.93ms. Allocated memory is still 165.7MB. Free memory was 110.1MB in the beginning and 109.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:54:49,077 INFO L158 Benchmark]: RCFGBuilder took 350.56ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 98.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 06:54:49,078 INFO L158 Benchmark]: TraceAbstraction took 4177.27ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 97.6MB in the beginning and 86.1MB in the end (delta: 11.4MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2023-02-17 06:54:49,078 INFO L158 Benchmark]: Witness Printer took 48.61ms. Allocated memory is still 199.2MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:54:49,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 86.4MB in the end (delta: 19.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.07ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 111.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.39ms. Allocated memory is still 165.7MB. Free memory was 111.7MB in the beginning and 110.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.93ms. Allocated memory is still 165.7MB. Free memory was 110.1MB in the beginning and 109.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.56ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 98.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4177.27ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 97.6MB in the beginning and 86.1MB in the end (delta: 11.4MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Witness Printer took 48.61ms. Allocated memory is still 199.2MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 17]: 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 754 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 528 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 661 IncrementalHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 226 mSDtfsCounter, 661 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 447 GetRequests, 375 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=6, InterpolantAutomatonStates: 46, 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, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 39 PreInvPairs, 58 NumberOfFragments, 895 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 435 ConstructedInterpolants, 0 QuantifiedInterpolants, 1259 SizeOfPredicates, 37 NumberOfNonLiveVariables, 725 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 419/434 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: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((x == (q + a) * y + (r + -b) && ((((((y >= 0 && y <= 5) && 1 <= r) && y >= 1) && b == y * a) && x == q * y + r) || ((((((y >= 0 && y <= 5) && 1 <= r) && y >= 1) && r >= 0) && b == y * a) && x == q * y + r))) && x == q * y + r) || ((((((((y >= 0 && y <= 5) && 1 <= r) && y >= 1) && r >= 0) && b == y * a) || ((((y >= 0 && y <= 5) && 1 <= r) && y >= 1) && b == y * a)) && x == (q + a) * y + (r + -b)) && x == q * y + r) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((y >= 0 && y <= 5) && x == (q + a) * y + (r + -b)) && y >= 1) && b == y * a) && x == q * y + r) || (((((((a == 0 && y >= 0) && y <= 5) && x == (q + a) * y + (r + -b)) && y >= 1) && b == 0) && b == y * a) && x == q * y + r) RESULT: Ultimate proved your program to be correct! [2023-02-17 06:54:49,113 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