./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:55:38,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:55:38,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:55:38,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:55:38,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:55:39,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:55:39,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:55:39,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:55:39,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:55:39,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:55:39,012 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:55:39,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:55:39,013 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:55:39,014 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:55:39,014 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:55:39,015 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:55:39,015 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:55:39,016 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:55:39,016 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:55:39,017 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:55:39,017 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:55:39,018 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:55:39,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:55:39,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:55:39,020 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:55:39,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:55:39,021 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:55:39,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:55:39,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:55:39,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:55:39,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:55:39,023 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:55:39,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:55:39,023 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:55:39,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:55:39,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:55:39,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:55:39,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:55:39,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:55:39,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:55:39,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:55:39,025 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:55:39,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:55:39,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:55:39,026 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:55:39,026 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:55:39,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:55:39,026 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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 [2023-12-02 18:55:39,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:55:39,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:55:39,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:55:39,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:55:39,268 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:55:39,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2023-12-02 18:55:42,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:55:42,280 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:55:42,280 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2023-12-02 18:55:42,290 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data/a2637be9f/2176aab90db34104bbef1cb6eeaec5d4/FLAG94543a9f5 [2023-12-02 18:55:42,305 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data/a2637be9f/2176aab90db34104bbef1cb6eeaec5d4 [2023-12-02 18:55:42,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:55:42,309 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:55:42,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:55:42,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:55:42,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:55:42,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c320457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42, skipping insertion in model container [2023-12-02 18:55:42,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:55:42,495 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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2023-12-02 18:55:42,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:55:42,559 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:55:42,571 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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2023-12-02 18:55:42,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:55:42,624 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:55:42,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42 WrapperNode [2023-12-02 18:55:42,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:55:42,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:55:42,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:55:42,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:55:42,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,690 INFO L138 Inliner]: procedures = 29, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 366 [2023-12-02 18:55:42,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:55:42,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:55:42,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:55:42,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:55:42,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:55:42,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:55:42,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:55:42,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:55:42,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (1/1) ... [2023-12-02 18:55:42,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:55:42,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:55:42,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:55:42,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:55:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:55:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:55:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 18:55:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 18:55:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:55:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 18:55:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:55:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:55:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:55:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:55:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:55:42,927 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:55:42,929 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:55:43,290 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:55:43,635 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:55:43,635 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:55:43,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:43 BoogieIcfgContainer [2023-12-02 18:55:43,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:55:43,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:55:43,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:55:43,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:55:43,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:55:42" (1/3) ... [2023-12-02 18:55:43,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269d4b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:55:43, skipping insertion in model container [2023-12-02 18:55:43,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:42" (2/3) ... [2023-12-02 18:55:43,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269d4b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:55:43, skipping insertion in model container [2023-12-02 18:55:43,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:43" (3/3) ... [2023-12-02 18:55:43,646 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-35.i [2023-12-02 18:55:43,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:55:43,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:55:43,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:55:43,720 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;@61b1809f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:55:43,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:55:43,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 18:55:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 18:55:43,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:55:43,736 INFO L195 NwaCegarLoop]: trace histogram [18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:55:43,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:55:43,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:55:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2082314413, now seen corresponding path program 1 times [2023-12-02 18:55:43,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:55:43,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128257540] [2023-12-02 18:55:43,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:55:43,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:55:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:55:44,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:55:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:55:45,469 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:55:45,471 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:55:45,472 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:55:45,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:55:45,479 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:55:45,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:55:45,513 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 18:55:45,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-12-02 18:55:45,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-12-02 18:55:45,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-12-02 18:55:45,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 18:55:45,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-12-02 18:55:45,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated [2023-12-02 18:55:45,517 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 18:55:45,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 18:55:45,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated [2023-12-02 18:55:45,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-12-02 18:55:45,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-12-02 18:55:45,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-12-02 18:55:45,518 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-12-02 18:55:45,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-12-02 18:55:45,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-12-02 18:55:45,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 18:55:45,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-12-02 18:55:45,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 18:55:45,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated [2023-12-02 18:55:45,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-12-02 18:55:45,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-12-02 18:55:45,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated [2023-12-02 18:55:45,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-12-02 18:55:45,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 18:55:45,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 18:55:45,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-12-02 18:55:45,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-12-02 18:55:45,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-12-02 18:55:45,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-12-02 18:55:45,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-12-02 18:55:45,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-12-02 18:55:45,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 18:55:45,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 18:55:45,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 18:55:45,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 18:55:45,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 18:55:45,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 18:55:45,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-12-02 18:55:45,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-12-02 18:55:45,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 18:55:45,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 18:55:45,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 18:55:45,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 18:55:45,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 18:55:45,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 18:55:45,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 18:55:45,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 18:55:45,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 18:55:45,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 18:55:45,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-12-02 18:55:45,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-12-02 18:55:45,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 18:55:45,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 18:55:45,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 18:55:45,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 18:55:45,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 18:55:45,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 18:55:45,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 18:55:45,531 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 18:55:45,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:55:45 BoogieIcfgContainer [2023-12-02 18:55:45,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:55:45,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:55:45,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:55:45,550 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:55:45,551 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:43" (3/4) ... [2023-12-02 18:55:45,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:55:45,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:55:45,555 INFO L158 Benchmark]: Toolchain (without parser) took 3246.18ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 92.3MB in the beginning and 116.8MB in the end (delta: -24.5MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2023-12-02 18:55:45,556 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:55:45,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.06ms. Allocated memory is still 136.3MB. Free memory was 92.3MB in the beginning and 76.2MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 18:55:45,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.86ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 72.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:55:45,558 INFO L158 Benchmark]: Boogie Preprocessor took 51.99ms. Allocated memory is still 136.3MB. Free memory was 72.5MB in the beginning and 69.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:55:45,558 INFO L158 Benchmark]: RCFGBuilder took 894.07ms. Allocated memory is still 136.3MB. Free memory was 69.2MB in the beginning and 74.5MB in the end (delta: -5.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-12-02 18:55:45,559 INFO L158 Benchmark]: TraceAbstraction took 1909.38ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 73.7MB in the beginning and 116.8MB in the end (delta: -43.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2023-12-02 18:55:45,560 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 211.8MB. Free memory was 116.8MB in the beginning and 116.8MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:55:45,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.06ms. Allocated memory is still 136.3MB. Free memory was 92.3MB in the beginning and 76.2MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.86ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 72.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.99ms. Allocated memory is still 136.3MB. Free memory was 72.5MB in the beginning and 69.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 894.07ms. Allocated memory is still 136.3MB. Free memory was 69.2MB in the beginning and 74.5MB in the end (delta: -5.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1909.38ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 73.7MB in the beginning and 116.8MB in the end (delta: -43.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 211.8MB. Free memory was 116.8MB in the beginning and 116.8MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someUnaryDOUBLEoperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 63. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 4.8, 255.1, -0.6, -10, 1, -2, 10, 5, -1, 1, 0, 1, 5, 64, 5 }; [L57] unsigned char last_1_WrapperStruct00_var_1_18 = 5; [L127] isInitial = 1 [L128] FCALL initially() [L129] COND TRUE 1 [L130] CALL updateLastVariables() [L120] EXPR WrapperStruct00.var_1_18 [L120] last_1_WrapperStruct00_var_1_18 = WrapperStruct00.var_1_18 [L130] RET updateLastVariables() [L131] CALL updateVariables() [L90] WrapperStruct00.var_1_4 = __VERIFIER_nondet_float() [L91] EXPR WrapperStruct00.var_1_4 [L91] EXPR WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F [L91] EXPR (WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) [L91] EXPR WrapperStruct00.var_1_4 [L91] EXPR WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F [L91] EXPR WrapperStruct00.var_1_4 [L91] EXPR WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F [L91] EXPR (WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L91] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L92] WrapperStruct00.var_1_5 = __VERIFIER_nondet_float() [L93] EXPR WrapperStruct00.var_1_5 [L93] EXPR WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F [L93] EXPR WrapperStruct00.var_1_5 [L93] EXPR WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F [L93] EXPR (WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L93] CALL assume_abort_if_not((WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L94] WrapperStruct00.var_1_8 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L96] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L97] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L98] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L99] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L100] WrapperStruct00.var_1_13 = __VERIFIER_nondet_char() [L101] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L102] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L103] WrapperStruct00.var_1_14 = __VERIFIER_nondet_char() [L104] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L105] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L106] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L108] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L109] WrapperStruct00.var_1_17 = __VERIFIER_nondet_uchar() [L110] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L111] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L112] WrapperStruct00.var_1_19 = __VERIFIER_nondet_uchar() [L113] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 32) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L114] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 64) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 64) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L115] WrapperStruct00.var_1_20 = __VERIFIER_nondet_uchar() [L116] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_20 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(WrapperStruct00.var_1_20 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L117] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_20 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(WrapperStruct00.var_1_20 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L131] RET updateVariables() [L132] CALL step() [L61] signed long int stepLocal_0 = ~ last_1_WrapperStruct00_var_1_18; [L62] COND TRUE last_1_WrapperStruct00_var_1_18 >= stepLocal_0 [L63] EXPR WrapperStruct00.var_1_4 [L63] EXPR WrapperStruct00.var_1_5 [L63] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L65] EXPR WrapperStruct00.var_1_1 [L65] EXPR WrapperStruct00.var_1_5 [L65] EXPR WrapperStruct00.var_1_4 [L65] unsigned char stepLocal_1 = (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_5) >= WrapperStruct00.var_1_4; [L66] EXPR WrapperStruct00.var_1_17 [L66] COND FALSE !(WrapperStruct00.var_1_17 && stepLocal_1) [L69] EXPR WrapperStruct00.var_1_19 [L69] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_19 [L71] WrapperStruct00.var_1_8 [L71] COND TRUE WrapperStruct00.var_1_8 [L72] EXPR WrapperStruct00.var_1_16 [L72] WrapperStruct00.var_1_15 = (! WrapperStruct00.var_1_16) [L76] WrapperStruct00.var_1_15 [L76] COND TRUE WrapperStruct00.var_1_15 [L77] EXPR WrapperStruct00.var_1_12 [L77] EXPR WrapperStruct00.var_1_13 [L77] EXPR ((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13) [L77] EXPR WrapperStruct00.var_1_14 [L77] WrapperStruct00.var_1_11 = ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14) [L79] WrapperStruct00.var_1_15 [L79] COND TRUE WrapperStruct00.var_1_15 [L80] WrapperStruct00.var_1_15 [L80] COND TRUE WrapperStruct00.var_1_15 [L81] EXPR WrapperStruct00.var_1_11 [L81] EXPR WrapperStruct00.var_1_11 [L81] WrapperStruct00.var_1_6 = (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11) [L132] RET step() [L133] CALL, EXPR property() [L123] EXPR (last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1 [L123] EXPR WrapperStruct00.var_1_1 [L123] EXPR WrapperStruct00.var_1_4 [L123] EXPR WrapperStruct00.var_1_5 [L123] EXPR (last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1 [L123] EXPR ((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11))) [L123] EXPR (((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1) [L123] EXPR ((((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_8 ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_17)))) [L123] EXPR (((((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_8 ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_17))))) && ((WrapperStruct00.var_1_17 && ((WrapperStruct00.var_1_1 * WrapperStruct00.var_1_5) >= WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_18 == ((unsigned char) (2 + ((WrapperStruct00.var_1_19 - WrapperStruct00.var_1_20) + 32)))) : (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_19))) [L123-L124] return (((((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_8 ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_17))))) && ((WrapperStruct00.var_1_17 && ((WrapperStruct00.var_1_1 * WrapperStruct00.var_1_5) >= WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_18 == ((unsigned char) (2 + ((WrapperStruct00.var_1_19 - WrapperStruct00.var_1_20) + 32)))) : (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_19))) ; [L133] RET, EXPR property() [L133] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_18=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:55:45,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:55:47,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:55:47,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:55:47,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:55:47,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:55:47,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:55:47,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:55:47,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:55:47,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:55:47,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:55:47,666 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:55:47,667 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:55:47,667 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:55:47,668 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:55:47,668 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:55:47,669 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:55:47,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:55:47,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:55:47,671 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:55:47,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:55:47,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:55:47,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:55:47,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:55:47,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:55:47,674 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:55:47,675 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:55:47,675 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:55:47,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:55:47,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:55:47,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:55:47,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:55:47,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:55:47,678 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:55:47,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:55:47,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:55:47,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:55:47,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:55:47,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:55:47,679 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:55:47,679 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:55:47,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:55:47,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:55:47,680 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:55:47,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:55:47,681 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 [2023-12-02 18:55:47,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:55:47,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:55:47,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:55:48,000 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:55:48,001 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:55:48,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2023-12-02 18:55:50,777 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:55:50,991 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:55:50,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2023-12-02 18:55:51,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data/eea558d6c/dbd804c038f04dd483fb68be3d0e3871/FLAGc3f27b799 [2023-12-02 18:55:51,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/data/eea558d6c/dbd804c038f04dd483fb68be3d0e3871 [2023-12-02 18:55:51,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:55:51,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:55:51,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:55:51,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:55:51,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:55:51,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc21371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51, skipping insertion in model container [2023-12-02 18:55:51,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,050 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:55:51,173 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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2023-12-02 18:55:51,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:55:51,244 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:55:51,254 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_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2023-12-02 18:55:51,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:55:51,316 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:55:51,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51 WrapperNode [2023-12-02 18:55:51,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:55:51,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:55:51,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:55:51,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:55:51,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,381 INFO L138 Inliner]: procedures = 33, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 363 [2023-12-02 18:55:51,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:55:51,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:55:51,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:55:51,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:55:51,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:55:51,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:55:51,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:55:51,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:55:51,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (1/1) ... [2023-12-02 18:55:51,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:55:51,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:55:51,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:55:51,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:55:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:55:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:55:51,547 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:55:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:55:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:55:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 18:55:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 18:55:51,655 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:55:51,657 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:55:52,879 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:55:52,916 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:55:52,916 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:55:52,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:52 BoogieIcfgContainer [2023-12-02 18:55:52,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:55:52,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:55:52,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:55:52,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:55:52,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:55:51" (1/3) ... [2023-12-02 18:55:52,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d563ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:55:52, skipping insertion in model container [2023-12-02 18:55:52,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:51" (2/3) ... [2023-12-02 18:55:52,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d563ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:55:52, skipping insertion in model container [2023-12-02 18:55:52,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:52" (3/3) ... [2023-12-02 18:55:52,926 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-35.i [2023-12-02 18:55:52,942 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:55:52,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:55:52,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:55:52,994 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;@d27ae7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:55:52,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:55:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 73 states have (on average 1.4109589041095891) internal successors, (103), 74 states have internal predecessors, (103), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 18:55:53,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 18:55:53,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:55:53,013 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 18:55:53,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:55:53,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:55:53,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1367388951, now seen corresponding path program 1 times [2023-12-02 18:55:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:55:53,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950543176] [2023-12-02 18:55:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:55:53,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:55:53,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:55:53,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:55:53,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 18:55:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:55:53,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:55:53,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:55:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-02 18:55:53,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:55:53,505 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:55:53,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950543176] [2023-12-02 18:55:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950543176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:55:53,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:55:53,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:55:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709538107] [2023-12-02 18:55:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:55:53,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:55:53,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:55:53,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:55:53,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:55:53,542 INFO L87 Difference]: Start difference. First operand has 94 states, 73 states have (on average 1.4109589041095891) internal successors, (103), 74 states have internal predecessors, (103), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:55:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:55:53,589 INFO L93 Difference]: Finished difference Result 185 states and 294 transitions. [2023-12-02 18:55:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:55:53,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 138 [2023-12-02 18:55:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:55:53,599 INFO L225 Difference]: With dead ends: 185 [2023-12-02 18:55:53,599 INFO L226 Difference]: Without dead ends: 92 [2023-12-02 18:55:53,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:55:53,605 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:55:53,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:55:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-02 18:55:53,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-12-02 18:55:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 72 states have internal predecessors, (97), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 18:55:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 133 transitions. [2023-12-02 18:55:53,653 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 133 transitions. Word has length 138 [2023-12-02 18:55:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:55:53,653 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 133 transitions. [2023-12-02 18:55:53,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:55:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 133 transitions. [2023-12-02 18:55:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 18:55:53,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:55:53,658 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 18:55:53,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:55:53,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:55:53,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:55:53,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:55:53,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2145334647, now seen corresponding path program 1 times [2023-12-02 18:55:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:55:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261053941] [2023-12-02 18:55:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:55:53,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:55:53,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:55:53,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:55:53,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 18:56:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:56:05,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 18:56:05,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:56:05,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 18:56:05,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2023-12-02 18:56:06,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:06,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 67 [2023-12-02 18:56:07,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:07,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 67 [2023-12-02 18:56:07,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:07,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 67 [2023-12-02 18:56:08,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:08,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 77 [2023-12-02 18:56:08,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:08,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 80 [2023-12-02 18:56:09,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:09,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 80 [2023-12-02 18:56:10,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:10,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 90 [2023-12-02 18:56:10,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:10,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 155 treesize of output 103 [2023-12-02 18:56:11,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:11,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 238 treesize of output 142 [2023-12-02 18:56:25,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:25,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 242 treesize of output 137 [2023-12-02 18:56:26,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 217 [2023-12-02 18:56:26,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:56:26,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:26,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 217 treesize of output 229 [2023-12-02 18:56:28,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 112 [2023-12-02 18:56:39,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:39,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 508 treesize of output 259 [2023-12-02 18:56:45,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:56:45,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 643 treesize of output 247 [2023-12-02 18:56:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 18:56:47,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:56:47,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:56:47,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261053941] [2023-12-02 18:56:47,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261053941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:56:47,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:56:47,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-02 18:56:47,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31785197] [2023-12-02 18:56:47,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:56:47,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 18:56:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:56:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 18:56:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-12-02 18:56:47,827 INFO L87 Difference]: Start difference. First operand 92 states and 133 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 18:57:02,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:05,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:08,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:11,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:13,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:17,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:19,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:21,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:24,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:57:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:57:41,956 INFO L93 Difference]: Finished difference Result 412 states and 586 transitions. [2023-12-02 18:57:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 18:57:41,958 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 138 [2023-12-02 18:57:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:57:41,962 INFO L225 Difference]: With dead ends: 412 [2023-12-02 18:57:41,962 INFO L226 Difference]: Without dead ends: 321 [2023-12-02 18:57:41,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2023-12-02 18:57:41,965 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 487 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 58 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:57:41,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 943 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1768 Invalid, 8 Unknown, 0 Unchecked, 47.3s Time] [2023-12-02 18:57:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-02 18:57:42,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 204. [2023-12-02 18:57:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 144 states have (on average 1.25) internal successors, (180), 145 states have internal predecessors, (180), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 18:57:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 286 transitions. [2023-12-02 18:57:42,007 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 286 transitions. Word has length 138 [2023-12-02 18:57:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:57:42,008 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 286 transitions. [2023-12-02 18:57:42,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 18:57:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 286 transitions. [2023-12-02 18:57:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 18:57:42,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:57:42,021 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 18:57:42,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-02 18:57:42,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:57:42,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:57:42,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:57:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash -151189941, now seen corresponding path program 1 times [2023-12-02 18:57:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:57:42,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165223086] [2023-12-02 18:57:42,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:57:42,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:57:42,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:57:42,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:57:42,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 18:57:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:57:42,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 18:57:42,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:57:42,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 18:57:42,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-02 18:57:42,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2023-12-02 18:57:42,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:42,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2023-12-02 18:57:43,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:43,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2023-12-02 18:57:43,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:43,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2023-12-02 18:57:43,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:43,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 60 [2023-12-02 18:57:43,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:43,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 18 [2023-12-02 18:57:43,270 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 335 proven. 18 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-12-02 18:57:43,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:57:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-02 18:57:43,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:57:43,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165223086] [2023-12-02 18:57:43,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165223086] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:57:43,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1912144353] [2023-12-02 18:57:43,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:57:43,682 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:57:43,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:57:43,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:57:43,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 18:57:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:57:44,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 18:57:44,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:57:45,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 18:57:45,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 18:57:45,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-12-02 18:57:45,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:45,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-12-02 18:57:45,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:45,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 35 [2023-12-02 18:57:45,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:45,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 35 [2023-12-02 18:57:45,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:45,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 63 [2023-12-02 18:57:46,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:46,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 22 [2023-12-02 18:57:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 351 proven. 18 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-12-02 18:57:46,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:57:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-02 18:57:46,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1912144353] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:57:46,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932741884] [2023-12-02 18:57:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:57:46,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:57:46,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:57:46,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:57:46,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 18:57:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:57:46,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 18:57:46,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:57:46,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2023-12-02 18:57:46,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:46,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2023-12-02 18:57:47,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:47,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2023-12-02 18:57:47,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:47,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 54 [2023-12-02 18:57:57,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:57:57,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 133 treesize of output 103 [2023-12-02 18:58:09,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:58:09,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 177 treesize of output 135 [2023-12-02 18:58:16,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:58:16,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 134 treesize of output 50 [2023-12-02 18:58:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 351 proven. 18 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-12-02 18:58:17,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:58:34,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932741884] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:58:34,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2023-12-02 18:58:34,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10, 8, 13] total 28 [2023-12-02 18:58:34,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456966831] [2023-12-02 18:58:34,700 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2023-12-02 18:58:34,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 18:58:34,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:58:34,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 18:58:34,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=727, Unknown=0, NotChecked=0, Total=930 [2023-12-02 18:58:34,705 INFO L87 Difference]: Start difference. First operand 204 states and 286 transitions. Second operand has 28 states, 25 states have (on average 5.8) internal successors, (145), 28 states have internal predecessors, (145), 13 states have call successors, (49), 10 states have call predecessors, (49), 13 states have return successors, (49), 10 states have call predecessors, (49), 13 states have call successors, (49) [2023-12-02 18:59:11,623 WARN L293 SmtUtils]: Spent 7.57s on a formula simplification. DAG size of input: 87 DAG size of output: 74 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:59:14,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:22,052 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 78 DAG size of output: 65 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:59:25,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:29,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:52,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:59:54,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:00:28,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:00:37,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:00:40,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:00:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:40,718 INFO L93 Difference]: Finished difference Result 717 states and 948 transitions. [2023-12-02 19:00:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 19:00:40,719 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 5.8) internal successors, (145), 28 states have internal predecessors, (145), 13 states have call successors, (49), 10 states have call predecessors, (49), 13 states have return successors, (49), 10 states have call predecessors, (49), 13 states have call successors, (49) Word has length 138 [2023-12-02 19:00:40,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:40,724 INFO L225 Difference]: With dead ends: 717 [2023-12-02 19:00:40,724 INFO L226 Difference]: Without dead ends: 514 [2023-12-02 19:00:40,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 684 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1366 ImplicationChecksByTransitivity, 95.9s TimeCoverageRelationStatistics Valid=1109, Invalid=3721, Unknown=0, NotChecked=0, Total=4830 [2023-12-02 19:00:40,730 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 696 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 453 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:40,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 612 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 1208 Invalid, 8 Unknown, 0 Unchecked, 70.3s Time] [2023-12-02 19:00:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-02 19:00:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 367. [2023-12-02 19:00:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 265 states have (on average 1.2339622641509433) internal successors, (327), 268 states have internal predecessors, (327), 81 states have call successors, (81), 20 states have call predecessors, (81), 20 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 19:00:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 489 transitions. [2023-12-02 19:00:40,812 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 489 transitions. Word has length 138 [2023-12-02 19:00:40,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:40,813 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 489 transitions. [2023-12-02 19:00:40,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 5.8) internal successors, (145), 28 states have internal predecessors, (145), 13 states have call successors, (49), 10 states have call predecessors, (49), 13 states have return successors, (49), 10 states have call predecessors, (49), 13 states have call successors, (49) [2023-12-02 19:00:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 489 transitions. [2023-12-02 19:00:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 19:00:40,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:40,817 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 19:00:40,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-02 19:00:41,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 19:00:41,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 19:00:41,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:41,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:41,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:41,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1926479929, now seen corresponding path program 1 times [2023-12-02 19:00:41,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:41,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595572326] [2023-12-02 19:00:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:41,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:41,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:41,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 19:00:41,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 19:00:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:41,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:00:41,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-02 19:00:41,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:00:41,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:00:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595572326] [2023-12-02 19:00:41,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595572326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:41,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:41,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:00:41,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855718542] [2023-12-02 19:00:41,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:41,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:00:41,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:00:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:00:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:00:41,742 INFO L87 Difference]: Start difference. First operand 367 states and 489 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:00:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:41,946 INFO L93 Difference]: Finished difference Result 733 states and 977 transitions. [2023-12-02 19:00:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:00:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2023-12-02 19:00:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:41,949 INFO L225 Difference]: With dead ends: 733 [2023-12-02 19:00:41,949 INFO L226 Difference]: Without dead ends: 367 [2023-12-02 19:00:41,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:00:41,951 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 18 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:41,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 235 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:00:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-02 19:00:42,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2023-12-02 19:00:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 265 states have (on average 1.2264150943396226) internal successors, (325), 268 states have internal predecessors, (325), 81 states have call successors, (81), 20 states have call predecessors, (81), 20 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 19:00:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 487 transitions. [2023-12-02 19:00:42,008 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 487 transitions. Word has length 138 [2023-12-02 19:00:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:42,009 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 487 transitions. [2023-12-02 19:00:42,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:00:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 487 transitions. [2023-12-02 19:00:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 19:00:42,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:42,012 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 19:00:42,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 19:00:42,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:42,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:42,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:42,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1715127051, now seen corresponding path program 1 times [2023-12-02 19:00:42,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:42,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142902832] [2023-12-02 19:00:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:42,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:42,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:42,223 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 19:00:42,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 19:00:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:42,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:00:42,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-02 19:00:42,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:00:42,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:00:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142902832] [2023-12-02 19:00:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142902832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981910611] [2023-12-02 19:00:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:42,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:00:42,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:42,555 INFO L87 Difference]: Start difference. First operand 367 states and 487 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:00:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:42,676 INFO L93 Difference]: Finished difference Result 753 states and 1003 transitions. [2023-12-02 19:00:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:00:42,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 138 [2023-12-02 19:00:42,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:42,679 INFO L225 Difference]: With dead ends: 753 [2023-12-02 19:00:42,679 INFO L226 Difference]: Without dead ends: 387 [2023-12-02 19:00:42,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:42,681 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 7 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:42,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 381 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:00:42,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-02 19:00:42,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 371. [2023-12-02 19:00:42,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 269 states have (on average 1.2156133828996283) internal successors, (327), 272 states have internal predecessors, (327), 81 states have call successors, (81), 20 states have call predecessors, (81), 20 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 19:00:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 489 transitions. [2023-12-02 19:00:42,743 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 489 transitions. Word has length 138 [2023-12-02 19:00:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:42,744 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 489 transitions. [2023-12-02 19:00:42,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:00:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 489 transitions. [2023-12-02 19:00:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 19:00:42,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:42,747 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 19:00:42,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 19:00:42,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:42,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:42,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:42,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1727445945, now seen corresponding path program 1 times [2023-12-02 19:00:42,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:42,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620113450] [2023-12-02 19:00:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:42,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:42,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:42,950 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 19:00:42,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 19:00:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:43,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:00:43,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-02 19:00:43,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:00:43,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:00:43,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620113450] [2023-12-02 19:00:43,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620113450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:43,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:43,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:43,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310776587] [2023-12-02 19:00:43,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:43,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:43,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:00:43,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:43,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:43,295 INFO L87 Difference]: Start difference. First operand 371 states and 489 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:00:43,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:43,415 INFO L93 Difference]: Finished difference Result 749 states and 989 transitions. [2023-12-02 19:00:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:00:43,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2023-12-02 19:00:43,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:43,418 INFO L225 Difference]: With dead ends: 749 [2023-12-02 19:00:43,418 INFO L226 Difference]: Without dead ends: 379 [2023-12-02 19:00:43,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:43,419 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 7 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:43,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 382 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:00:43,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-02 19:00:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2023-12-02 19:00:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 269 states have (on average 1.20817843866171) internal successors, (325), 272 states have internal predecessors, (325), 81 states have call successors, (81), 20 states have call predecessors, (81), 20 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 19:00:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 487 transitions. [2023-12-02 19:00:43,480 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 487 transitions. Word has length 138 [2023-12-02 19:00:43,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:43,480 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 487 transitions. [2023-12-02 19:00:43,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:00:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 487 transitions. [2023-12-02 19:00:43,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-02 19:00:43,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:43,483 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 19:00:43,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 19:00:43,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:43,684 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:43,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash 465914499, now seen corresponding path program 1 times [2023-12-02 19:00:43,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:43,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777586746] [2023-12-02 19:00:43,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:43,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:43,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:43,686 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 19:00:43,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 19:00:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:44,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:00:44,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:00:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-02 19:00:44,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:00:44,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:00:44,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777586746] [2023-12-02 19:00:44,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777586746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:44,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:44,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:00:44,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196235479] [2023-12-02 19:00:44,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:44,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:00:44,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:00:44,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:00:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:44,065 INFO L87 Difference]: Start difference. First operand 371 states and 487 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:00:46,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:46,486 INFO L93 Difference]: Finished difference Result 963 states and 1258 transitions. [2023-12-02 19:00:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:00:46,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-12-02 19:00:46,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:46,490 INFO L225 Difference]: With dead ends: 963 [2023-12-02 19:00:46,491 INFO L226 Difference]: Without dead ends: 593 [2023-12-02 19:00:46,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:00:46,492 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 106 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:46,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 537 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-02 19:00:46,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2023-12-02 19:00:46,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 372. [2023-12-02 19:00:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 270 states have (on average 1.2) internal successors, (324), 273 states have internal predecessors, (324), 81 states have call successors, (81), 20 states have call predecessors, (81), 20 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 19:00:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 486 transitions. [2023-12-02 19:00:46,560 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 486 transitions. Word has length 139 [2023-12-02 19:00:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:46,561 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 486 transitions. [2023-12-02 19:00:46,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:00:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 486 transitions. [2023-12-02 19:00:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-02 19:00:46,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:46,564 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 19:00:46,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 19:00:46,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:46,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:00:46,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash -470737009, now seen corresponding path program 1 times [2023-12-02 19:00:46,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:00:46,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710649609] [2023-12-02 19:00:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:46,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:00:46,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:00:46,767 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 19:00:46,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 19:01:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:20,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-02 19:01:20,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:20,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:01:20,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2023-12-02 19:01:21,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:21,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 65 [2023-12-02 19:01:22,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:22,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 75 [2023-12-02 19:01:23,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:23,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 88 [2023-12-02 19:01:24,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:24,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 91 [2023-12-02 19:01:24,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:24,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 101 [2023-12-02 19:01:26,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:26,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 114 [2023-12-02 19:01:27,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:27,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 173 treesize of output 127 [2023-12-02 19:01:28,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:28,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 183 treesize of output 140 [2023-12-02 19:01:30,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:01:30,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 266 treesize of output 179 [2023-12-02 19:02:11,636 WARN L293 SmtUtils]: Spent 12.68s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:02:11,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:02:11,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 342 treesize of output 198 [2023-12-02 19:02:54,192 WARN L293 SmtUtils]: Spent 11.67s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:03:10,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 293 [2023-12-02 19:03:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:03:10,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:03:10,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 293 treesize of output 291 [2023-12-02 19:03:29,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 176 [2023-12-02 19:04:35,656 WARN L293 SmtUtils]: Spent 26.70s on a formula simplification that was a NOOP. DAG size: 101 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:05:46,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:05:46,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 698 treesize of output 347 [2023-12-02 19:06:50,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:06:50,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 833 treesize of output 317 [2023-12-02 19:07:09,664 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 516 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-02 19:07:09,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:08:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-02 19:08:02,768 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:08:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710649609] [2023-12-02 19:08:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710649609] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 19:08:02,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:08:02,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [25] total 30 [2023-12-02 19:08:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977520988] [2023-12-02 19:08:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:02,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 19:08:02,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:08:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 19:08:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=690, Unknown=2, NotChecked=0, Total=870 [2023-12-02 19:08:02,771 INFO L87 Difference]: Start difference. First operand 372 states and 486 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:08:07,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:12,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:22,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:27,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:30,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:32,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:34,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:48,502 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:08:51,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:54,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:57,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:59,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:00,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:03,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:05,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:07,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:08,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:11,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:15,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:17,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:19,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:21,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:27,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:29,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:32,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:34,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:37,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:39,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:41,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:43,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:45,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:48,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:50,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:54,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:01,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:03,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:03,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:10:03,219 INFO L93 Difference]: Finished difference Result 795 states and 1040 transitions. [2023-12-02 19:10:03,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 19:10:03,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-02 19:10:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:10:03,228 INFO L225 Difference]: With dead ends: 795 [2023-12-02 19:10:03,229 INFO L226 Difference]: Without dead ends: 424 [2023-12-02 19:10:03,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 193.5s TimeCoverageRelationStatistics Valid=203, Invalid=851, Unknown=2, NotChecked=0, Total=1056 [2023-12-02 19:10:03,230 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 87 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 3 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:10:03,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 576 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 264 Invalid, 13 Unknown, 0 Unchecked, 105.5s Time] [2023-12-02 19:10:03,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-12-02 19:10:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 372. [2023-12-02 19:10:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 270 states have (on average 1.2) internal successors, (324), 273 states have internal predecessors, (324), 81 states have call successors, (81), 20 states have call predecessors, (81), 20 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 19:10:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 486 transitions. [2023-12-02 19:10:03,276 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 486 transitions. Word has length 140 [2023-12-02 19:10:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:10:03,277 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 486 transitions. [2023-12-02 19:10:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 19:10:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 486 transitions. [2023-12-02 19:10:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-02 19:10:03,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:03,279 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 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 19:10:03,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-02 19:10:03,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:10:03,480 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:10:03,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1288385459, now seen corresponding path program 1 times [2023-12-02 19:10:03,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:10:03,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084153046] [2023-12-02 19:10:03,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:03,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:10:03,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:10:03,482 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 19:10:03,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78a75b-90cc-4de3-b7b3-90fe8e7b501f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 19:10:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:18,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-02 19:10:18,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:10:18,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:10:19,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2023-12-02 19:10:20,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:20,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 75 [2023-12-02 19:10:21,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:21,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 148 treesize of output 78 [2023-12-02 19:10:22,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:22,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 148 treesize of output 78 [2023-12-02 19:10:23,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:23,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 88 [2023-12-02 19:10:24,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:24,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 101 [2023-12-02 19:10:26,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 104 [2023-12-02 19:10:30,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:30,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 133 [2023-12-02 19:10:32,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:32,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 136 [2023-12-02 19:10:34,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:10:34,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 268 treesize of output 172