./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-69.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76abfdf7fdc41a1be2e9e3447b52bdd52e99cea2380fe8c13182a79a913d7592 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:07,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:07,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:22:07,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:07,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:07,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:07,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:07,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:07,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:07,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:07,344 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:07,345 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:07,345 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:07,346 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:22:07,346 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:07,347 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:07,347 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:22:07,348 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:22:07,348 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:07,349 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:22:07,350 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:22:07,351 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:22:07,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:07,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:07,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:07,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:22:07,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:07,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:07,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:07,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:07,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:07,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:07,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:07,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:07,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:07,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:07,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:07,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:07,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:07,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:07,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:07,359 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:22:07,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:22:07,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:07,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:07,360 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:07,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:07,360 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76abfdf7fdc41a1be2e9e3447b52bdd52e99cea2380fe8c13182a79a913d7592 [2023-12-02 12:22:07,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:07,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:07,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:07,599 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:07,600 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:07,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-69.i [2023-12-02 12:22:10,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:10,606 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:10,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-69.i [2023-12-02 12:22:10,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/data/cc2c1395e/b679721fc19f40ef8ce361e2ced053e0/FLAG7e594ee8d [2023-12-02 12:22:10,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/data/cc2c1395e/b679721fc19f40ef8ce361e2ced053e0 [2023-12-02 12:22:10,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:10,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:10,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:10,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:10,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:10,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe203a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10, skipping insertion in model container [2023-12-02 12:22:10,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:10,812 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-69.i[915,928] [2023-12-02 12:22:10,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:10,871 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:10,882 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-69.i[915,928] [2023-12-02 12:22:10,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:10,925 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:10,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10 WrapperNode [2023-12-02 12:22:10,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:10,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:10,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:10,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:10,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,981 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-12-02 12:22:10,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:10,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:10,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:10,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:10,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:10,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:11,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:11,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:11,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:11,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:11,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:11,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:11,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:11,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:11,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (1/1) ... [2023-12-02 12:22:11,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:11,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:11,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:11,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:22:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:22:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:22:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:11,189 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:11,192 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:11,490 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:11,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:11,676 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:22:11,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:11 BoogieIcfgContainer [2023-12-02 12:22:11,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:11,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:11,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:11,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:11,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:10" (1/3) ... [2023-12-02 12:22:11,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fdef01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:11, skipping insertion in model container [2023-12-02 12:22:11,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:10" (2/3) ... [2023-12-02 12:22:11,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fdef01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:11, skipping insertion in model container [2023-12-02 12:22:11,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:11" (3/3) ... [2023-12-02 12:22:11,688 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-69.i [2023-12-02 12:22:11,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:11,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:22:11,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:11,785 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7f5dc2a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:11,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:22:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 12:22:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 12:22:11,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:11,800 INFO L195 NwaCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:11,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:11,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:11,805 INFO L85 PathProgramCache]: Analyzing trace with hash 763402877, now seen corresponding path program 1 times [2023-12-02 12:22:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:11,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134332609] [2023-12-02 12:22:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:11,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:11,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 12:22:11,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454335075] [2023-12-02 12:22:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:11,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:22:11,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:11,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:22:11,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:22:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:12,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 12:22:12,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:22:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 160 proven. 25 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 12:22:19,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:26:13,200 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_11~0 65536))) (or (let ((.cse1 (+ .cse4 c_~var_1_10~0))) (let ((.cse0 (and (forall ((|v_ULTIMATE.start_property_#t~nondet14#1_40| Int)) (or (< 0 (+ |v_ULTIMATE.start_property_#t~nondet14#1_40| 1)) (< (mod (* |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_11~0) 4294967296) 4294967286) (< |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_10~0) (< .cse1 |v_ULTIMATE.start_property_#t~nondet14#1_40|))) (forall ((|v_ULTIMATE.start_property_#t~nondet14#1_40| Int)) (or (< 0 (+ |v_ULTIMATE.start_property_#t~nondet14#1_40| 1)) (< (mod (* |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_11~0) 4294967296) 4294967286) (< |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_10~0))))) (.cse2 (and (forall ((|v_ULTIMATE.start_property_#t~nondet14#1_40| Int)) (or (< 0 (+ |v_ULTIMATE.start_property_#t~nondet14#1_40| 1)) (< |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_10~0) (< 4294967285 (mod (* |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_11~0) 4294967296)))) (forall ((|v_ULTIMATE.start_property_#t~nondet14#1_40| Int)) (or (< 0 (+ |v_ULTIMATE.start_property_#t~nondet14#1_40| 1)) (< |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_10~0) (< .cse1 |v_ULTIMATE.start_property_#t~nondet14#1_40|) (< 4294967285 (mod (* |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_11~0) 4294967296)))))) (.cse3 (< 0 (+ c_~var_1_10~0 1)))) (and (or (and (or .cse0 (forall ((|v_ULTIMATE.start_step_#t~nondet4#1_56| Int)) (or (< .cse1 |v_ULTIMATE.start_step_#t~nondet4#1_56|) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_10~0) (< 0 (+ |v_ULTIMATE.start_step_#t~nondet4#1_56| 1)) (< 4294967285 (mod (* |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_11~0) 4294967296))))) (or (forall ((|v_ULTIMATE.start_step_#t~nondet4#1_56| Int)) (or (< .cse1 |v_ULTIMATE.start_step_#t~nondet4#1_56|) (< (mod (* |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_11~0) 4294967296) 4294967286) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_10~0) (< 0 (+ |v_ULTIMATE.start_step_#t~nondet4#1_56| 1)))) .cse2)) .cse3) (or (and (or (forall ((|v_ULTIMATE.start_property_#t~nondet14#1_40| Int)) (or (< |v_ULTIMATE.start_property_#t~nondet14#1_40| .cse4) (< (mod (* |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_11~0) 4294967296) 4294967286) (< 2147483647 |v_ULTIMATE.start_property_#t~nondet14#1_40|) (< |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_10~0) (< .cse1 |v_ULTIMATE.start_property_#t~nondet14#1_40|))) (forall ((|v_ULTIMATE.start_step_#t~nondet4#1_56| Int)) (or (< .cse1 |v_ULTIMATE.start_step_#t~nondet4#1_56|) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_10~0) (< 4294967285 (mod (* |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_11~0) 4294967296)) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| .cse4) (< 2147483647 |v_ULTIMATE.start_step_#t~nondet4#1_56|)))) (or (forall ((|v_ULTIMATE.start_step_#t~nondet4#1_56| Int)) (or (< .cse1 |v_ULTIMATE.start_step_#t~nondet4#1_56|) (< (mod (* |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_11~0) 4294967296) 4294967286) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_10~0) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| .cse4) (< 2147483647 |v_ULTIMATE.start_step_#t~nondet4#1_56|))) (forall ((|v_ULTIMATE.start_property_#t~nondet14#1_40| Int)) (or (< |v_ULTIMATE.start_property_#t~nondet14#1_40| .cse4) (< 2147483647 |v_ULTIMATE.start_property_#t~nondet14#1_40|) (< |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_10~0) (< .cse1 |v_ULTIMATE.start_property_#t~nondet14#1_40|) (< 4294967285 (mod (* |v_ULTIMATE.start_property_#t~nondet14#1_40| c_~var_1_11~0) 4294967296)))))) (< c_~var_1_10~0 0)) (or (and (or .cse0 (forall ((|v_ULTIMATE.start_step_#t~nondet4#1_56| Int)) (or (< |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_10~0) (< 0 (+ |v_ULTIMATE.start_step_#t~nondet4#1_56| 1)) (< 4294967285 (mod (* |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_11~0) 4294967296))))) (or (forall ((|v_ULTIMATE.start_step_#t~nondet4#1_56| Int)) (or (< (mod (* |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_11~0) 4294967296) 4294967286) (< |v_ULTIMATE.start_step_#t~nondet4#1_56| c_~var_1_10~0) (< 0 (+ |v_ULTIMATE.start_step_#t~nondet4#1_56| 1)))) .cse2)) .cse3)))) (= .cse4 0) (= .cse4 c_~var_1_10~0) (= c_~var_1_10~0 0))) is different from true [2023-12-02 12:26:48,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:26:48,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134332609] [2023-12-02 12:26:48,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 12:26:48,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454335075] [2023-12-02 12:26:48,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454335075] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:26:48,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1767165834] [2023-12-02 12:26:48,466 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2023-12-02 12:26:48,466 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:26:48,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:26:48,473 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:26:48,473 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:26:51,051 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 38 for LOIs [2023-12-02 12:26:51,055 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:26:53,502 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '244#(and (<= ~var_1_10~0 32766) (<= ~var_1_17~0 32766) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 2147483647) (<= 0 (+ 32767 ~var_1_15~0)) (<= 1 |#StackHeapBarrier|) (<= ~var_1_16~0 32766) (<= 0 (+ |ULTIMATE.start_main_#t~ret16#1| 2147483648)) (<= 0 ~var_1_11~0) (<= 0 (+ 32767 ~var_1_16~0)) (<= |ULTIMATE.start_main_#t~ret16#1| 2147483647) (<= ~var_1_15~0 32766) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ |ULTIMATE.start_property_#res#1| 2147483648)) (<= 0 (+ |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 2147483648)) (= ~isInitial~0 1) (<= |ULTIMATE.start_property_#res#1| 2147483647) (<= 0 (+ ~var_1_10~0 1)) (<= 0 ~var_1_17~0) (<= ~var_1_11~0 32766))' at error location [2023-12-02 12:26:53,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:26:53,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:26:53,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-12-02 12:26:53,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483809959] [2023-12-02 12:26:53,505 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 12:26:53,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 12:26:53,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:26:53,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 12:26:53,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1005, Unknown=1, NotChecked=70, Total=1406 [2023-12-02 12:26:53,532 INFO L87 Difference]: Start difference. First operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 13 states, 8 states have (on average 2.5) internal successors, (20), 11 states have internal predecessors, (20), 6 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-02 12:26:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:26:53,812 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2023-12-02 12:26:53,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 12:26:53,814 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 2.5) internal successors, (20), 11 states have internal predecessors, (20), 6 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) Word has length 61 [2023-12-02 12:26:53,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:26:53,818 INFO L225 Difference]: With dead ends: 73 [2023-12-02 12:26:53,819 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:26:53,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=339, Invalid=1070, Unknown=1, NotChecked=72, Total=1482 [2023-12-02 12:26:53,825 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:26:53,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 77 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:26:53,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:26:53,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:26:53,846 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) [2023-12-02 12:26:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:26:53,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2023-12-02 12:26:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:26:53,848 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:26:53,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 2.5) internal successors, (20), 11 states have internal predecessors, (20), 6 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-02 12:26:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:26:53,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:26:53,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:26:53,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:26:54,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:26:54,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:26:54,172 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 12:26:54,172 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 12:26:54,172 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 12:26:54,173 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 (+ ~var_1_10~0 1))) [2023-12-02 12:26:54,173 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1))) [2023-12-02 12:26:54,173 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-02 12:26:54,173 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,173 INFO L895 garLoopResultBuilder]: At program point L86-1(line 86) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,173 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-02 12:26:54,174 INFO L899 garLoopResultBuilder]: For program point L87(lines 62 88) no Hoare annotation was computed. [2023-12-02 12:26:54,174 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:26:54,174 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,174 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,174 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,174 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,175 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-02 12:26:54,175 INFO L895 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,175 INFO L899 garLoopResultBuilder]: For program point L64-1(line 64) no Hoare annotation was computed. [2023-12-02 12:26:54,175 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-02 12:26:54,175 INFO L895 garLoopResultBuilder]: At program point L98-2(lines 98 104) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 12:26:54,176 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (<= ~var_1_10~0 32767) [2023-12-02 12:26:54,176 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (<= ~var_1_10~0 32767) (<= 0 (+ ~var_1_10~0 1))) [2023-12-02 12:26:54,176 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,176 INFO L899 garLoopResultBuilder]: For program point L66-1(line 66) no Hoare annotation was computed. [2023-12-02 12:26:54,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:26:54,176 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,177 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,177 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-02 12:26:54,177 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-12-02 12:26:54,177 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,177 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (<= ~var_1_10~0 32766) (<= 0 ~var_1_11~0) (<= 0 (+ ~var_1_10~0 1)) (<= ~var_1_11~0 32766)) [2023-12-02 12:26:54,177 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 12:26:54,178 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 12:26:54,181 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:26:54,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:26:54,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:26:54 BoogieIcfgContainer [2023-12-02 12:26:54,197 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:26:54,198 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:26:54,198 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:26:54,198 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:26:54,199 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:11" (3/4) ... [2023-12-02 12:26:54,201 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:26:54,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 12:26:54,212 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-12-02 12:26:54,212 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 12:26:54,213 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 12:26:54,214 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:26:54,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:26:54,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:26:54,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:26:54,325 INFO L158 Benchmark]: Toolchain (without parser) took 283690.03ms. Allocated memory was 155.2MB in the beginning and 276.8MB in the end (delta: 121.6MB). Free memory was 122.0MB in the beginning and 158.4MB in the end (delta: -36.5MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,326 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:26:54,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.71ms. Allocated memory is still 155.2MB. Free memory was 121.5MB in the beginning and 109.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.54ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 106.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,327 INFO L158 Benchmark]: Boogie Preprocessor took 38.60ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 104.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,328 INFO L158 Benchmark]: RCFGBuilder took 656.48ms. Allocated memory is still 155.2MB. Free memory was 104.8MB in the beginning and 123.0MB in the end (delta: -18.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,328 INFO L158 Benchmark]: TraceAbstraction took 282516.44ms. Allocated memory was 155.2MB in the beginning and 276.8MB in the end (delta: 121.6MB). Free memory was 122.3MB in the beginning and 164.7MB in the end (delta: -42.4MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,328 INFO L158 Benchmark]: Witness Printer took 126.90ms. Allocated memory is still 276.8MB. Free memory was 164.7MB in the beginning and 158.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 12:26:54,331 INFO L338 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 is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.71ms. Allocated memory is still 155.2MB. Free memory was 121.5MB in the beginning and 109.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.54ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 106.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.60ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 104.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 656.48ms. Allocated memory is still 155.2MB. Free memory was 104.8MB in the beginning and 123.0MB in the end (delta: -18.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 282516.44ms. Allocated memory was 155.2MB in the beginning and 276.8MB in the end (delta: 121.6MB). Free memory was 122.3MB in the beginning and 164.7MB in the end (delta: -42.4MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Witness Printer took 126.90ms. Allocated memory is still 276.8MB. Free memory was 164.7MB in the beginning and 158.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 282.4s, OverallIterations: 1, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 25 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 49 PreInvPairs, 66 NumberOfFragments, 229 HoareAnnotationTreeSize, 49 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 134 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 276.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 486 SizeOfPredicates, 18 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 215/240 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: 98]: Loop Invariant Derived loop invariant: ((((var_1_10 <= 32766) && (0 <= var_1_11)) && (0 <= (var_1_10 + 1))) && (var_1_11 <= 32766)) RESULT: Ultimate proved your program to be correct! [2023-12-02 12:26:54,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085ac495-ab39-40f1-b606-f1ef78c01299/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE