./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 6172bcf472a886b23306a046bd0a20ff775f8e0d008adc455f4ef56119e5614f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:33:49,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:33:49,325 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:33:49,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:33:49,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:33:49,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:33:49,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:33:49,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:33:49,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:33:49,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:33:49,356 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:33:49,356 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:33:49,357 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:33:49,357 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:33:49,358 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:33:49,358 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:33:49,359 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:33:49,359 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:33:49,360 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:33:49,360 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:33:49,361 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:33:49,362 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:33:49,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:33:49,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:33:49,364 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:33:49,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:33:49,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:33:49,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:33:49,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:33:49,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:33:49,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:33:49,367 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:33:49,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:33:49,367 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:33:49,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:33:49,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:33:49,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:33:49,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:33:49,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:33:49,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:33:49,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:33:49,369 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:33:49,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:33:49,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:33:49,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:33:49,370 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:33:49,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:33:49,371 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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6172bcf472a886b23306a046bd0a20ff775f8e0d008adc455f4ef56119e5614f [2023-12-02 19:33:49,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:33:49,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:33:49,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:33:49,607 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:33:49,607 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:33:49,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i [2023-12-02 19:33:52,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:33:52,572 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:33:52,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i [2023-12-02 19:33:52,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data/36a9098de/d3e02e0b7a6c4d5e9ef670dfbcaf6f5f/FLAG0968a1046 [2023-12-02 19:33:52,595 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data/36a9098de/d3e02e0b7a6c4d5e9ef670dfbcaf6f5f [2023-12-02 19:33:52,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:33:52,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:33:52,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:33:52,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:33:52,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:33:52,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8db14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52, skipping insertion in model container [2023-12-02 19:33:52,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,640 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:33:52,756 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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i[916,929] [2023-12-02 19:33:52,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:33:52,847 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:33:52,856 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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i[916,929] [2023-12-02 19:33:52,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:33:52,919 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:33:52,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52 WrapperNode [2023-12-02 19:33:52,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:33:52,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:33:52,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:33:52,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:33:52,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,985 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253 [2023-12-02 19:33:52,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:33:52,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:33:52,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:33:52,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:33:52,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:52,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:53,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:53,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:53,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:53,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:53,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:33:53,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:33:53,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:33:53,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:33:53,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (1/1) ... [2023-12-02 19:33:53,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:33:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:33:53,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:33:53,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:33:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:33:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:33:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:33:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:33:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:33:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:33:53,202 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:33:53,205 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:33:53,652 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:33:53,972 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:33:53,973 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:33:53,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:33:53 BoogieIcfgContainer [2023-12-02 19:33:53,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:33:53,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:33:53,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:33:53,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:33:53,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:33:52" (1/3) ... [2023-12-02 19:33:53,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c2e259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:33:53, skipping insertion in model container [2023-12-02 19:33:53,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:33:52" (2/3) ... [2023-12-02 19:33:53,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c2e259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:33:53, skipping insertion in model container [2023-12-02 19:33:53,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:33:53" (3/3) ... [2023-12-02 19:33:53,982 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-31.i [2023-12-02 19:33:53,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:33:53,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:33:54,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:33:54,043 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;@6e66f0be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:33:54,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:33:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 19:33:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 19:33:54,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:33:54,057 INFO L195 NwaCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:54,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:33:54,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:33:54,062 INFO L85 PathProgramCache]: Analyzing trace with hash -9960363, now seen corresponding path program 1 times [2023-12-02 19:33:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:33:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619820686] [2023-12-02 19:33:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:54,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:33:54,227 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:33:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197040459] [2023-12-02 19:33:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:54,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:33:54,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:33:54,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:33:54,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:33:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:33:55,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:33:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:33:55,651 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:33:55,653 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:33:55,654 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:33:55,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:33:55,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 19:33:55,860 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:33:55,863 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:33:55,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:33:55 BoogieIcfgContainer [2023-12-02 19:33:55,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:33:55,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:33:55,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:33:55,968 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:33:55,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:33:53" (3/4) ... [2023-12-02 19:33:55,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:33:55,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:33:55,972 INFO L158 Benchmark]: Toolchain (without parser) took 3373.76ms. Allocated memory is still 159.4MB. Free memory was 121.3MB in the beginning and 62.2MB in the end (delta: 59.1MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2023-12-02 19:33:55,972 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:33:55,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.92ms. Allocated memory is still 159.4MB. Free memory was 120.9MB in the beginning and 104.5MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 19:33:55,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.51ms. Allocated memory is still 159.4MB. Free memory was 104.5MB in the beginning and 99.9MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 19:33:55,974 INFO L158 Benchmark]: Boogie Preprocessor took 51.84ms. Allocated memory is still 159.4MB. Free memory was 99.5MB in the beginning and 97.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:33:55,975 INFO L158 Benchmark]: RCFGBuilder took 935.66ms. Allocated memory is still 159.4MB. Free memory was 97.0MB in the beginning and 114.7MB in the end (delta: -17.7MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-12-02 19:33:55,976 INFO L158 Benchmark]: TraceAbstraction took 1990.69ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 62.2MB in the end (delta: 51.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-12-02 19:33:55,976 INFO L158 Benchmark]: Witness Printer took 3.67ms. Allocated memory is still 159.4MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:33:55,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.92ms. Allocated memory is still 159.4MB. Free memory was 120.9MB in the beginning and 104.5MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.51ms. Allocated memory is still 159.4MB. Free memory was 104.5MB in the beginning and 99.9MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.84ms. Allocated memory is still 159.4MB. Free memory was 99.5MB in the beginning and 97.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 935.66ms. Allocated memory is still 159.4MB. Free memory was 97.0MB in the beginning and 114.7MB in the end (delta: -17.7MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1990.69ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 62.2MB in the end (delta: 51.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 3.67ms. Allocated memory is still 159.4MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 206, overapproximation of shiftRight at line 107, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 206. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 200; [L23] unsigned long int var_1_4 = 32; [L24] unsigned char var_1_6 = 1; [L25] unsigned char var_1_7 = 0; [L26] unsigned char var_1_10 = 0; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 0; [L29] unsigned char var_1_13 = 50; [L30] unsigned long int var_1_14 = 1000000000; [L31] unsigned short int var_1_15 = 10; [L32] unsigned short int var_1_16 = 39011; [L33] unsigned long int var_1_17 = 4; [L34] signed char var_1_18 = 4; [L35] signed char var_1_21 = 16; [L36] signed char var_1_22 = 64; [L37] signed long int var_1_23 = 8; [L38] unsigned char var_1_24 = 0; [L39] unsigned char var_1_25 = 0; [L40] unsigned char var_1_26 = 0; [L41] unsigned char var_1_27 = 0; [L42] double var_1_28 = 25.5; [L43] double var_1_29 = 255.25; [L44] double var_1_30 = 24.7; [L45] double var_1_31 = 31.2; [L46] float var_1_32 = -0.2; [L47] unsigned char var_1_33 = 10; [L48] float var_1_34 = 24.5; [L49] unsigned char last_1_var_1_7 = 0; [L50] unsigned short int last_1_var_1_15 = 10; [L51] unsigned long int last_1_var_1_17 = 4; [L52] signed long int last_1_var_1_23 = 8; [L53] unsigned char last_1_var_1_24 = 0; [L54] unsigned char last_1_var_1_33 = 10; [L210] isInitial = 1 [L211] FCALL initially() [L212] COND TRUE 1 [L213] CALL updateLastVariables() [L198] last_1_var_1_7 = var_1_7 [L199] last_1_var_1_15 = var_1_15 [L200] last_1_var_1_17 = var_1_17 [L201] last_1_var_1_23 = var_1_23 [L202] last_1_var_1_24 = var_1_24 [L203] last_1_var_1_33 = var_1_33 [L213] RET updateLastVariables() [L214] CALL updateVariables() [L156] var_1_4 = __VERIFIER_nondet_ulong() [L157] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_6=1, var_1_7=0] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_6=1, var_1_7=0] [L158] CALL assume_abort_if_not(var_1_4 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_6=1, var_1_7=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_4 <= 4294967295) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_6=1, var_1_7=0] [L159] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=1, var_1_7=0] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=1, var_1_7=0] [L160] var_1_6 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_7=0] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_7=0] [L162] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L163] var_1_10 = __VERIFIER_nondet_uchar() [L164] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L165] CALL assume_abort_if_not(var_1_10 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_10 <= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L166] var_1_11 = __VERIFIER_nondet_uchar() [L167] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L168] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L169] var_1_12 = __VERIFIER_nondet_uchar() [L170] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L171] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=39011, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L172] var_1_16 = __VERIFIER_nondet_ushort() [L173] CALL assume_abort_if_not(var_1_16 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_16 >= 32767) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L174] CALL assume_abort_if_not(var_1_16 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_16 <= 65534) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=16, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L175] var_1_21 = __VERIFIER_nondet_char() [L176] CALL assume_abort_if_not(var_1_21 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_21 >= -1) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L177] CALL assume_abort_if_not(var_1_21 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_21 <= 126) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=64, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L178] var_1_22 = __VERIFIER_nondet_char() [L179] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L179] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L180] CALL assume_abort_if_not(var_1_22 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_22 <= 126) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L181] var_1_25 = __VERIFIER_nondet_uchar() [L182] CALL assume_abort_if_not(var_1_25 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L182] RET assume_abort_if_not(var_1_25 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L183] CALL assume_abort_if_not(var_1_25 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L183] RET assume_abort_if_not(var_1_25 <= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L184] var_1_26 = __VERIFIER_nondet_uchar() [L185] CALL assume_abort_if_not(var_1_26 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L185] RET assume_abort_if_not(var_1_26 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L186] CALL assume_abort_if_not(var_1_26 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L186] RET assume_abort_if_not(var_1_26 <= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L187] var_1_27 = __VERIFIER_nondet_uchar() [L188] CALL assume_abort_if_not(var_1_27 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L188] RET assume_abort_if_not(var_1_27 >= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L189] CALL assume_abort_if_not(var_1_27 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L189] RET assume_abort_if_not(var_1_27 <= 0) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_29=1021/4, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L190] var_1_29 = __VERIFIER_nondet_double() [L191] CALL assume_abort_if_not((var_1_29 >= 0.0F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 4611686.018427382800e+12F && var_1_29 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L191] RET assume_abort_if_not((var_1_29 >= 0.0F && var_1_29 <= -1.0e-20F) || (var_1_29 <= 4611686.018427382800e+12F && var_1_29 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_30=247/10, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L192] var_1_30 = __VERIFIER_nondet_double() [L193] CALL assume_abort_if_not((var_1_30 >= 0.0F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 4611686.018427382800e+12F && var_1_30 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L193] RET assume_abort_if_not((var_1_30 >= 0.0F && var_1_30 <= -1.0e-20F) || (var_1_30 <= 4611686.018427382800e+12F && var_1_30 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_31=156/5, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L194] var_1_31 = __VERIFIER_nondet_double() [L195] CALL assume_abort_if_not((var_1_31 >= -461168.6018427382800e+13F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 4611686.018427382800e+12F && var_1_31 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L20] COND FALSE !(!cond) [L195] RET assume_abort_if_not((var_1_31 >= -461168.6018427382800e+13F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 4611686.018427382800e+12F && var_1_31 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=50, var_1_14=1000000000, var_1_15=10, var_1_16=65534, var_1_17=4, var_1_18=4, var_1_1=200, var_1_21=-1, var_1_22=126, var_1_23=8, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=0, var_1_28=51/2, var_1_33=10, var_1_34=49/2, var_1_4=8, var_1_6=7, var_1_7=0] [L214] RET updateVariables() [L215] CALL step() [L58] signed long int stepLocal_8 = last_1_var_1_33; [L59] COND FALSE !(stepLocal_8 <= ((last_1_var_1_17 / var_1_4) / var_1_16)) [L68] var_1_18 = var_1_21 [L70] COND FALSE !(! (! (last_1_var_1_7 && last_1_var_1_24))) [L77] var_1_15 = last_1_var_1_23 [L79] var_1_14 = (var_1_6 + var_1_15) [L80] unsigned char stepLocal_9 = last_1_var_1_7; [L81] COND TRUE ! last_1_var_1_24 [L82] COND FALSE !(stepLocal_9 && (last_1_var_1_33 >= ((((last_1_var_1_17) < (var_1_4)) ? (last_1_var_1_17) : (var_1_4))))) [L85] var_1_24 = var_1_12 [L90] unsigned short int stepLocal_10 = var_1_15; [L91] COND FALSE !(stepLocal_10 < var_1_4) [L98] var_1_28 = (100.4 + var_1_30) [L100] var_1_32 = var_1_29 [L101] var_1_33 = var_1_22 [L102] var_1_34 = var_1_29 [L103] unsigned char stepLocal_7 = var_1_12; [L104] EXPR last_1_var_1_15 & 16 [L104] signed long int stepLocal_6 = last_1_var_1_15 & 16; [L105] signed long int stepLocal_5 = last_1_var_1_15; [L106] COND FALSE !(last_1_var_1_15 < stepLocal_5) [L117] var_1_13 = var_1_6 [L119] unsigned char stepLocal_4 = var_1_24; [L120] unsigned long int stepLocal_3 = var_1_4; [L121] COND TRUE (var_1_24 && var_1_24) && stepLocal_4 [L122] COND FALSE !(stepLocal_3 == (- var_1_13)) [L125] var_1_7 = 0 [L130] unsigned char stepLocal_2 = var_1_13 < var_1_4; [L131] signed long int stepLocal_1 = var_1_6 + var_1_15; [L132] unsigned long int stepLocal_0 = var_1_13 % var_1_4; [L133] COND FALSE !(stepLocal_0 >= var_1_15) [L138] COND TRUE stepLocal_1 > var_1_13 [L139] var_1_1 = var_1_6 [L144] COND FALSE !(var_1_14 < var_1_13) [L147] var_1_23 = var_1_18 [L149] COND FALSE !((var_1_4 <= var_1_18) && var_1_7) [L215] RET step() [L216] CALL, EXPR property() [L206] EXPR ((((var_1_13 % var_1_4) >= var_1_15) ? ((var_1_24 && (var_1_13 < var_1_4)) ? (var_1_1 == ((unsigned char) var_1_6)) : 1) : (((var_1_6 + var_1_15) > var_1_13) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) 1)))) && (((var_1_24 && var_1_24) && var_1_24) ? ((var_1_4 == (- var_1_13)) ? (var_1_7 == ((unsigned char) (! (! (! var_1_10))))) : (var_1_7 == ((unsigned char) 0))) : (var_1_7 == ((unsigned char) (var_1_11 && var_1_12))))) && ((last_1_var_1_15 < last_1_var_1_15) ? ((var_1_12 || (last_1_var_1_15 < (var_1_6 >> last_1_var_1_33))) ? (((last_1_var_1_15 & 16) <= var_1_4) ? (var_1_13 == ((unsigned char) var_1_6)) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6))) [L206] EXPR (last_1_var_1_15 < last_1_var_1_15) ? ((var_1_12 || (last_1_var_1_15 < (var_1_6 >> last_1_var_1_33))) ? (((last_1_var_1_15 & 16) <= var_1_4) ? (var_1_13 == ((unsigned char) var_1_6)) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6)) [L206] EXPR ((((var_1_13 % var_1_4) >= var_1_15) ? ((var_1_24 && (var_1_13 < var_1_4)) ? (var_1_1 == ((unsigned char) var_1_6)) : 1) : (((var_1_6 + var_1_15) > var_1_13) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) 1)))) && (((var_1_24 && var_1_24) && var_1_24) ? ((var_1_4 == (- var_1_13)) ? (var_1_7 == ((unsigned char) (! (! (! var_1_10))))) : (var_1_7 == ((unsigned char) 0))) : (var_1_7 == ((unsigned char) (var_1_11 && var_1_12))))) && ((last_1_var_1_15 < last_1_var_1_15) ? ((var_1_12 || (last_1_var_1_15 < (var_1_6 >> last_1_var_1_33))) ? (((last_1_var_1_15 & 16) <= var_1_4) ? (var_1_13 == ((unsigned char) var_1_6)) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6))) [L206-L207] return ((((((((((((((var_1_13 % var_1_4) >= var_1_15) ? ((var_1_24 && (var_1_13 < var_1_4)) ? (var_1_1 == ((unsigned char) var_1_6)) : 1) : (((var_1_6 + var_1_15) > var_1_13) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) 1)))) && (((var_1_24 && var_1_24) && var_1_24) ? ((var_1_4 == (- var_1_13)) ? (var_1_7 == ((unsigned char) (! (! (! var_1_10))))) : (var_1_7 == ((unsigned char) 0))) : (var_1_7 == ((unsigned char) (var_1_11 && var_1_12))))) && ((last_1_var_1_15 < last_1_var_1_15) ? ((var_1_12 || (last_1_var_1_15 < (var_1_6 >> last_1_var_1_33))) ? (((last_1_var_1_15 & 16) <= var_1_4) ? (var_1_13 == ((unsigned char) var_1_6)) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6))) : (var_1_13 == ((unsigned char) var_1_6)))) && (var_1_14 == ((unsigned long int) (var_1_6 + var_1_15)))) && ((! (! (last_1_var_1_7 && last_1_var_1_24))) ? (last_1_var_1_7 ? (var_1_15 == ((unsigned short int) ((((last_1_var_1_33) > (last_1_var_1_23)) ? (last_1_var_1_33) : (last_1_var_1_23))))) : (var_1_15 == ((unsigned short int) (((((var_1_16 - var_1_6)) < (10)) ? ((var_1_16 - var_1_6)) : (10)))))) : (var_1_15 == ((unsigned short int) last_1_var_1_23)))) && (((var_1_4 <= var_1_18) && var_1_7) ? ((var_1_23 == var_1_1) ? (var_1_17 == ((unsigned long int) var_1_6)) : 1) : 1)) && ((last_1_var_1_33 <= ((last_1_var_1_17 / var_1_4) / var_1_16)) ? (last_1_var_1_24 ? (var_1_18 == ((signed char) (var_1_21 - var_1_22))) : (var_1_11 ? (var_1_18 == ((signed char) var_1_22)) : 1)) : (var_1_18 == ((signed char) var_1_21)))) && ((var_1_14 < var_1_13) ? (var_1_23 == ((signed long int) (((((var_1_14 + var_1_16)) < ((((((var_1_18 - var_1_14)) < (-128)) ? ((var_1_18 - var_1_14)) : (-128))))) ? ((var_1_14 + var_1_16)) : ((((((var_1_18 - var_1_14)) < (-128)) ? ((var_1_18 - var_1_14)) : (-128)))))))) : (var_1_23 == ((signed long int) var_1_18)))) && ((! last_1_var_1_24) ? ((last_1_var_1_7 && (last_1_var_1_33 >= ((((last_1_var_1_17) < (var_1_4)) ? (last_1_var_1_17) : (var_1_4))))) ? (var_1_24 == ((unsigned char) (var_1_10 || ((var_1_25 || var_1_26) || var_1_27)))) : (var_1_24 == ((unsigned char) var_1_12))) : (var_1_24 == ((unsigned char) var_1_12)))) && ((var_1_15 < var_1_4) ? (var_1_24 ? (var_1_28 == ((double) ((var_1_29 - var_1_30) + var_1_31))) : (var_1_28 == ((double) (4.75 + var_1_29)))) : (var_1_28 == ((double) (100.4 + var_1_30))))) && (var_1_32 == ((float) var_1_29))) && (var_1_33 == ((unsigned char) var_1_22))) && (var_1_34 == ((float) var_1_29)) ; [L216] RET, EXPR property() [L216] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=7, var_1_14=15, var_1_15=8, var_1_16=65534, var_1_17=4, var_1_18=-1, var_1_1=7, var_1_21=-1, var_1_22=126, var_1_23=-1, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=0, var_1_29=2, var_1_32=2, var_1_33=126, var_1_34=2, var_1_4=8, var_1_6=7, var_1_7=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=10, last_1_var_1_17=4, last_1_var_1_23=8, last_1_var_1_24=0, last_1_var_1_33=10, last_1_var_1_7=0, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=7, var_1_14=15, var_1_15=8, var_1_16=65534, var_1_17=4, var_1_18=-1, var_1_1=7, var_1_21=-1, var_1_22=126, var_1_23=-1, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=0, var_1_29=2, var_1_32=2, var_1_33=126, var_1_34=2, var_1_4=8, var_1_6=7, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 26, 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=49occurred 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, 1.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 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 19:33:55,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 6172bcf472a886b23306a046bd0a20ff775f8e0d008adc455f4ef56119e5614f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:33:57,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:33:57,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 19:33:57,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:33:57,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:33:57,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:33:57,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:33:57,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:33:57,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:33:57,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:33:57,993 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:33:57,994 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:33:57,994 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:33:57,995 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:33:57,995 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:33:57,996 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:33:57,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:33:57,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:33:57,997 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:33:57,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:33:57,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:33:58,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:33:58,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:33:58,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:33:58,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:33:58,005 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:33:58,005 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:33:58,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:33:58,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:33:58,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:33:58,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:33:58,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:33:58,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:33:58,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:33:58,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:33:58,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:33:58,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:33:58,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:33:58,009 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:33:58,009 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:33:58,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:33:58,010 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:33:58,010 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:33:58,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:33:58,010 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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6172bcf472a886b23306a046bd0a20ff775f8e0d008adc455f4ef56119e5614f [2023-12-02 19:33:58,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:33:58,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:33:58,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:33:58,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:33:58,346 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:33:58,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i [2023-12-02 19:34:01,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:34:01,327 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:34:01,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i [2023-12-02 19:34:01,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data/37f1a6e3b/8eaacd7520e746d9b59a4f8df702ed82/FLAG73c12ad5a [2023-12-02 19:34:01,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/data/37f1a6e3b/8eaacd7520e746d9b59a4f8df702ed82 [2023-12-02 19:34:01,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:34:01,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:34:01,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:34:01,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:34:01,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:34:01,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6309e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01, skipping insertion in model container [2023-12-02 19:34:01,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,394 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:34:01,515 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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i[916,929] [2023-12-02 19:34:01,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:34:01,596 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:34:01,606 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_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i[916,929] [2023-12-02 19:34:01,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:34:01,663 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:34:01,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01 WrapperNode [2023-12-02 19:34:01,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:34:01,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:34:01,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:34:01,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:34:01,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,715 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 201 [2023-12-02 19:34:01,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:34:01,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:34:01,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:34:01,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:34:01,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:34:01,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:34:01,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:34:01,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:34:01,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (1/1) ... [2023-12-02 19:34:01,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:34:01,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:34:01,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:34:01,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:34:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:34:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:34:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:34:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:34:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:34:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:34:01,953 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:34:01,955 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:34:05,603 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:34:05,650 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:34:05,650 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:34:05,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:34:05 BoogieIcfgContainer [2023-12-02 19:34:05,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:34:05,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:34:05,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:34:05,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:34:05,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:34:01" (1/3) ... [2023-12-02 19:34:05,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93663ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:34:05, skipping insertion in model container [2023-12-02 19:34:05,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:01" (2/3) ... [2023-12-02 19:34:05,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93663ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:34:05, skipping insertion in model container [2023-12-02 19:34:05,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:34:05" (3/3) ... [2023-12-02 19:34:05,660 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-31.i [2023-12-02 19:34:05,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:34:05,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:34:05,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:34:05,735 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;@160c9548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:34:05,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:34:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 49 states have (on average 1.510204081632653) internal successors, (74), 50 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 19:34:05,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-02 19:34:05,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:05,757 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:05,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:05,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:05,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1296840239, now seen corresponding path program 1 times [2023-12-02 19:34:05,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:34:05,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18757107] [2023-12-02 19:34:05,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:05,779 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 19:34:05,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:34:05,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:05,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:06,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 19:34:06,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2023-12-02 19:34:06,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:34:06,444 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:34:06,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18757107] [2023-12-02 19:34:06,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18757107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:06,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:06,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:34:06,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498695905] [2023-12-02 19:34:06,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:06,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:34:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:34:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:34:06,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:34:06,486 INFO L87 Difference]: Start difference. First operand has 78 states, 49 states have (on average 1.510204081632653) internal successors, (74), 50 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:34:08,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:08,683 INFO L93 Difference]: Finished difference Result 153 states and 276 transitions. [2023-12-02 19:34:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:34:08,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2023-12-02 19:34:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:08,729 INFO L225 Difference]: With dead ends: 153 [2023-12-02 19:34:08,730 INFO L226 Difference]: Without dead ends: 76 [2023-12-02 19:34:08,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 163 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 19:34:08,735 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:08,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-12-02 19:34:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-02 19:34:08,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-02 19:34:08,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 48 states have (on average 1.4375) internal successors, (69), 48 states have internal predecessors, (69), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 19:34:08,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 121 transitions. [2023-12-02 19:34:08,774 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 121 transitions. Word has length 164 [2023-12-02 19:34:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:08,774 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 121 transitions. [2023-12-02 19:34:08,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:34:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 121 transitions. [2023-12-02 19:34:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-02 19:34:08,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:08,779 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:08,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:08,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:08,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:08,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1273422055, now seen corresponding path program 1 times [2023-12-02 19:34:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:34:08,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769838309] [2023-12-02 19:34:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:08,982 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 19:34:08,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:34:08,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:08,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:09,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:34:09,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-02 19:34:10,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:34:10,358 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:34:10,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769838309] [2023-12-02 19:34:10,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769838309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:10,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:10,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:34:10,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341782267] [2023-12-02 19:34:10,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:10,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:34:10,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:34:10,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:34:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:34:10,363 INFO L87 Difference]: Start difference. First operand 76 states and 121 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:34:13,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:15,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:17,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:19,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:20,267 INFO L93 Difference]: Finished difference Result 266 states and 422 transitions. [2023-12-02 19:34:20,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:34:20,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2023-12-02 19:34:20,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:20,315 INFO L225 Difference]: With dead ends: 266 [2023-12-02 19:34:20,315 INFO L226 Difference]: Without dead ends: 191 [2023-12-02 19:34:20,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 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 19:34:20,318 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 125 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 64 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:20,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 376 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 30 Invalid, 4 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 19:34:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-02 19:34:20,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 142. [2023-12-02 19:34:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 19:34:20,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 222 transitions. [2023-12-02 19:34:20,350 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 222 transitions. Word has length 164 [2023-12-02 19:34:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:20,352 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 222 transitions. [2023-12-02 19:34:20,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:34:20,352 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 222 transitions. [2023-12-02 19:34:20,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-02 19:34:20,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:20,356 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:20,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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)] Ended with exit code 0 [2023-12-02 19:34:20,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:20,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:20,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:20,561 INFO L85 PathProgramCache]: Analyzing trace with hash -630429439, now seen corresponding path program 1 times [2023-12-02 19:34:20,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:34:20,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180280335] [2023-12-02 19:34:20,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:20,562 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 19:34:20,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:34:20,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:20,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:21,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:34:21,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-02 19:34:21,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:34:21,974 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:34:21,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180280335] [2023-12-02 19:34:21,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180280335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:21,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:21,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:34:21,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434847593] [2023-12-02 19:34:21,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:21,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:34:21,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:34:21,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:34:21,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:34:21,978 INFO L87 Difference]: Start difference. First operand 142 states and 222 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:34:24,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:27,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:27,351 INFO L93 Difference]: Finished difference Result 467 states and 728 transitions. [2023-12-02 19:34:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:34:27,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2023-12-02 19:34:27,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:27,356 INFO L225 Difference]: With dead ends: 467 [2023-12-02 19:34:27,357 INFO L226 Difference]: Without dead ends: 326 [2023-12-02 19:34:27,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:34:27,360 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 188 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:27,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 513 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2023-12-02 19:34:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-12-02 19:34:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 253. [2023-12-02 19:34:27,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 144 states have (on average 1.2847222222222223) internal successors, (185), 144 states have internal predecessors, (185), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:34:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 393 transitions. [2023-12-02 19:34:27,420 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 393 transitions. Word has length 165 [2023-12-02 19:34:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:27,420 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 393 transitions. [2023-12-02 19:34:27,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:34:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 393 transitions. [2023-12-02 19:34:27,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-02 19:34:27,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:27,424 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:27,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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)] Forceful destruction successful, exit code 0 [2023-12-02 19:34:27,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:27,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:27,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1910293117, now seen corresponding path program 1 times [2023-12-02 19:34:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:34:27,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136523220] [2023-12-02 19:34:27,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:27,630 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 19:34:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:34:27,631 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:27,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 (5)] Waiting until timeout for monitored process [2023-12-02 19:34:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:28,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 19:34:28,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 637 proven. 90 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2023-12-02 19:34:29,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:34:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-02 19:34:29,957 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:34:29,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136523220] [2023-12-02 19:34:29,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136523220] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:34:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [812377840] [2023-12-02 19:34:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:29,958 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:34:29,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:34:29,960 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:34:29,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 19:34:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:30,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:34:30,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-02 19:34:30,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:34:30,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [812377840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:30,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 19:34:30,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 7] total 16 [2023-12-02 19:34:30,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180960328] [2023-12-02 19:34:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:30,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:34:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:34:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:34:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-02 19:34:30,570 INFO L87 Difference]: Start difference. First operand 253 states and 393 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:34:33,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:35,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:36,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:36,897 INFO L93 Difference]: Finished difference Result 533 states and 827 transitions. [2023-12-02 19:34:36,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:34:36,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2023-12-02 19:34:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:36,903 INFO L225 Difference]: With dead ends: 533 [2023-12-02 19:34:36,903 INFO L226 Difference]: Without dead ends: 328 [2023-12-02 19:34:36,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 477 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-02 19:34:36,906 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 134 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:36,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 278 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-12-02 19:34:36,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-02 19:34:36,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 256. [2023-12-02 19:34:36,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 147 states have (on average 1.2857142857142858) internal successors, (189), 147 states have internal predecessors, (189), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:34:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 397 transitions. [2023-12-02 19:34:36,943 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 397 transitions. Word has length 165 [2023-12-02 19:34:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:36,944 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 397 transitions. [2023-12-02 19:34:36,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:34:36,945 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 397 transitions. [2023-12-02 19:34:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-02 19:34:36,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:36,948 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:36,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 19:34:37,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 (5)] Ended with exit code 0 [2023-12-02 19:34:37,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:37,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:37,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:37,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1853034815, now seen corresponding path program 1 times [2023-12-02 19:34:37,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:34:37,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509167410] [2023-12-02 19:34:37,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:37,354 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 19:34:37,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:34:37,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:37,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:34:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:37,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 19:34:37,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 637 proven. 90 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2023-12-02 19:34:38,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:34:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-02 19:34:39,571 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:34:39,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509167410] [2023-12-02 19:34:39,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509167410] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:34:39,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1860801135] [2023-12-02 19:34:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:39,572 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:34:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:34:39,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:34:39,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 19:34:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:40,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 19:34:40,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 213 proven. 69 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2023-12-02 19:34:43,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:34:56,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1860801135] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:34:56,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401928188] [2023-12-02 19:34:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:56,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:34:56,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:34:56,508 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:34:56,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 19:34:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:56,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 19:34:56,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 575 proven. 203 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2023-12-02 19:34:59,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:34:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-02 19:34:59,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401928188] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:34:59,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2023-12-02 19:34:59,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 10, 13, 7] total 26 [2023-12-02 19:34:59,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840758064] [2023-12-02 19:34:59,957 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2023-12-02 19:34:59,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 19:34:59,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:34:59,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 19:34:59,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2023-12-02 19:34:59,959 INFO L87 Difference]: Start difference. First operand 256 states and 397 transitions. Second operand has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 25 states have internal predecessors, (112), 6 states have call successors, (69), 6 states have call predecessors, (69), 9 states have return successors, (71), 6 states have call predecessors, (71), 6 states have call successors, (71) [2023-12-02 19:35:13,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:15,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:17,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:19,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:20,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:23,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:25,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:27,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:29,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:31,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:33,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:35:51,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:53,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:06,834 INFO L93 Difference]: Finished difference Result 859 states and 1250 transitions. [2023-12-02 19:36:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-12-02 19:36:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 25 states have internal predecessors, (112), 6 states have call successors, (69), 6 states have call predecessors, (69), 9 states have return successors, (71), 6 states have call predecessors, (71), 6 states have call successors, (71) Word has length 165 [2023-12-02 19:36:06,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:06,838 INFO L225 Difference]: With dead ends: 859 [2023-12-02 19:36:06,838 INFO L226 Difference]: Without dead ends: 651 [2023-12-02 19:36:06,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 818 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3149 ImplicationChecksByTransitivity, 43.8s TimeCoverageRelationStatistics Valid=1524, Invalid=8376, Unknown=0, NotChecked=0, Total=9900 [2023-12-02 19:36:06,843 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 957 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 379 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:06,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1132 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 1431 Invalid, 10 Unknown, 0 Unchecked, 36.3s Time] [2023-12-02 19:36:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-12-02 19:36:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 335. [2023-12-02 19:36:06,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 213 states have (on average 1.2300469483568075) internal successors, (262), 213 states have internal predecessors, (262), 104 states have call successors, (104), 17 states have call predecessors, (104), 17 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:36:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 470 transitions. [2023-12-02 19:36:06,904 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 470 transitions. Word has length 165 [2023-12-02 19:36:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:06,905 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 470 transitions. [2023-12-02 19:36:06,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 25 states have internal predecessors, (112), 6 states have call successors, (69), 6 states have call predecessors, (69), 9 states have return successors, (71), 6 states have call predecessors, (71), 6 states have call successors, (71) [2023-12-02 19:36:06,906 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 470 transitions. [2023-12-02 19:36:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-02 19:36:06,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:06,908 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:06,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:36:07,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 19:36:07,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 19:36:07,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:36:07,510 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:36:07,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1328940770, now seen corresponding path program 1 times [2023-12-02 19:36:07,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:36:07,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416772139] [2023-12-02 19:36:07,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:07,511 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 19:36:07,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:36:07,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:36:07,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:36:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:08,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 19:36:08,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:36:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 213 proven. 69 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2023-12-02 19:36:08,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:36:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-02 19:36:09,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:36:09,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416772139] [2023-12-02 19:36:09,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416772139] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:36:09,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [963714938] [2023-12-02 19:36:09,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:09,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:36:09,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:36:09,394 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:36:09,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 19:36:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:10,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 19:36:10,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:36:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-02 19:36:17,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:36:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [963714938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:17,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 19:36:17,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 7] total 19 [2023-12-02 19:36:17,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799310574] [2023-12-02 19:36:17,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:17,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 19:36:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:36:17,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 19:36:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-12-02 19:36:17,169 INFO L87 Difference]: Start difference. First operand 335 states and 470 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:36:36,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:38,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:40,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:42,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:45,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:47,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:49,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:52,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:54,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:56,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:36:59,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:37:01,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:37:03,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:37:05,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:37:08,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:37:10,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:12,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 19:37:14,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:14,686 INFO L93 Difference]: Finished difference Result 693 states and 980 transitions. [2023-12-02 19:37:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 19:37:14,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2023-12-02 19:37:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:14,690 INFO L225 Difference]: With dead ends: 693 [2023-12-02 19:37:14,690 INFO L226 Difference]: Without dead ends: 438 [2023-12-02 19:37:14,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 477 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=266, Invalid=856, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 19:37:14,692 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 440 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 55 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:14,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 823 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 303 Invalid, 16 Unknown, 0 Unchecked, 47.0s Time] [2023-12-02 19:37:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-02 19:37:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 348. [2023-12-02 19:37:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 226 states have (on average 1.2345132743362832) internal successors, (279), 226 states have internal predecessors, (279), 104 states have call successors, (104), 17 states have call predecessors, (104), 17 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:37:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 487 transitions. [2023-12-02 19:37:14,727 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 487 transitions. Word has length 166 [2023-12-02 19:37:14,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:14,728 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 487 transitions. [2023-12-02 19:37:14,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:37:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 487 transitions. [2023-12-02 19:37:14,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-02 19:37:14,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:14,730 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:14,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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)] Forceful destruction successful, exit code 0 [2023-12-02 19:37:14,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 19:37:15,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 19:37:15,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:37:15,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:15,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2008999140, now seen corresponding path program 1 times [2023-12-02 19:37:15,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:37:15,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643316334] [2023-12-02 19:37:15,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:15,132 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 19:37:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:37:15,133 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:37:15,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:37:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:15,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 19:37:15,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:37:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-02 19:37:16,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:37:16,925 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:37:16,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643316334] [2023-12-02 19:37:16,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643316334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:16,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:16,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 19:37:16,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671341337] [2023-12-02 19:37:16,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:16,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:37:16,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:37:16,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:37:16,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:37:16,927 INFO L87 Difference]: Start difference. First operand 348 states and 487 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:37:19,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:21,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:23,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:25,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:27,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:29,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:30,120 INFO L93 Difference]: Finished difference Result 763 states and 1073 transitions. [2023-12-02 19:37:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 19:37:30,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2023-12-02 19:37:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:30,125 INFO L225 Difference]: With dead ends: 763 [2023-12-02 19:37:30,125 INFO L226 Difference]: Without dead ends: 510 [2023-12-02 19:37:30,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-12-02 19:37:30,127 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 222 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 63 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:30,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 730 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 167 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2023-12-02 19:37:30,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-02 19:37:30,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 495. [2023-12-02 19:37:30,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 311 states have (on average 1.2090032154340835) internal successors, (376), 313 states have internal predecessors, (376), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 154 states have call predecessors, (156), 156 states have call successors, (156) [2023-12-02 19:37:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 688 transitions. [2023-12-02 19:37:30,172 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 688 transitions. Word has length 166 [2023-12-02 19:37:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:30,172 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 688 transitions. [2023-12-02 19:37:30,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-02 19:37:30,173 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 688 transitions. [2023-12-02 19:37:30,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-02 19:37:30,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:30,174 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:30,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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)] Ended with exit code 0 [2023-12-02 19:37:30,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:37:30,375 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:37:30,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:30,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1953587880, now seen corresponding path program 1 times [2023-12-02 19:37:30,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:37:30,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609905460] [2023-12-02 19:37:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:30,376 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 19:37:30,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:37:30,377 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 19:37:30,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c1b64eb-eafc-416b-a3ad-0ec62c478ec4/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 (13)] Waiting until timeout for monitored process [2023-12-02 19:37:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:30,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 19:37:30,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:17,461 WARN L293 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:39:05,768 WARN L293 SmtUtils]: Spent 17.98s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:39:53,943 WARN L293 SmtUtils]: Spent 18.80s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:40:42,644 WARN L293 SmtUtils]: Spent 18.79s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:41:52,347 WARN L293 SmtUtils]: Spent 19.13s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:42:49,443 WARN L293 SmtUtils]: Spent 18.25s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:44:04,637 WARN L293 SmtUtils]: Spent 19.56s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:45:07,313 WARN L293 SmtUtils]: Spent 21.62s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)