./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX --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 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:03:04,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:03:04,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 01:03:04,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:03:04,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:03:04,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:03:04,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:03:04,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:03:04,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:03:04,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:03:04,336 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:03:04,337 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:03:04,338 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:03:04,340 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:03:04,341 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:03:04,341 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:03:04,342 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:03:04,343 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:03:04,343 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:03:04,344 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:03:04,344 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:03:04,345 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:03:04,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:03:04,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:03:04,348 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:03:04,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:03:04,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:03:04,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:03:04,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:03:04,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:03:04,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:03:04,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:03:04,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:03:04,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:03:04,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:03:04,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:03:04,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:04,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:03:04,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:03:04,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:03:04,357 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:03:04,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:03:04,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:03:04,358 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:03:04,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:03:04,359 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 [2023-11-12 01:03:04,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:03:04,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:03:04,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:03:04,820 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:03:04,821 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:03:04,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2023-11-12 01:03:08,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:03:08,411 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:03:08,413 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2023-11-12 01:03:08,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data/175241a10/91c0da622017403995d56dfa5e82429a/FLAG8ae26bcdc [2023-11-12 01:03:08,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data/175241a10/91c0da622017403995d56dfa5e82429a [2023-11-12 01:03:08,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:03:08,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:03:08,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:08,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:03:08,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:03:08,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:08,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6515faa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08, skipping insertion in model container [2023-11-12 01:03:08,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:08,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:03:08,687 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2023-11-12 01:03:08,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:03:08,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:03:08,871 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2023-11-12 01:03:08,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:03:08,940 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:03:08,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08 WrapperNode [2023-11-12 01:03:08,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:08,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:03:08,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:03:08,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:03:08,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:08,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,021 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2023-11-12 01:03:09,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:03:09,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:03:09,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:03:09,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:03:09,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:03:09,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:03:09,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:03:09,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:03:09,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (1/1) ... [2023-11-12 01:03:09,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:09,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:09,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:03:09,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:03:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:03:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:03:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:03:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:03:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:03:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:03:09,371 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:03:09,375 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:03:09,983 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:03:10,353 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:03:10,354 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:03:10,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:10 BoogieIcfgContainer [2023-11-12 01:03:10,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:03:10,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:03:10,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:03:10,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:03:10,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:03:08" (1/3) ... [2023-11-12 01:03:10,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1539d757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:10, skipping insertion in model container [2023-11-12 01:03:10,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:08" (2/3) ... [2023-11-12 01:03:10,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1539d757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:10, skipping insertion in model container [2023-11-12 01:03:10,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:10" (3/3) ... [2023-11-12 01:03:10,397 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2023-11-12 01:03:10,419 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:03:10,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:03:10,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:03:10,501 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;@5ff1e092, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:03:10,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:03:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:03:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 01:03:10,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:10,522 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:10,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:10,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:10,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1620665193, now seen corresponding path program 1 times [2023-11-12 01:03:10,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:03:10,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979898275] [2023-11-12 01:03:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:10,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:03:10,813 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:03:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342629151] [2023-11-12 01:03:10,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:10,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:10,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:10,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:10,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:03:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:03:11,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 01:03:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:03:11,396 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 01:03:11,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 01:03:11,402 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 01:03:11,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:11,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 01:03:11,616 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 01:03:11,620 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:03:11,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:03:11 BoogieIcfgContainer [2023-11-12 01:03:11,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:03:11,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:03:11,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:03:11,759 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:03:11,760 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:10" (3/4) ... [2023-11-12 01:03:11,762 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 01:03:11,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:03:11,765 INFO L158 Benchmark]: Toolchain (without parser) took 3302.10ms. Allocated memory is still 188.7MB. Free memory was 118.9MB in the beginning and 99.2MB in the end (delta: 19.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-11-12 01:03:11,765 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 188.7MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:03:11,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.07ms. Allocated memory is still 188.7MB. Free memory was 118.7MB in the beginning and 155.3MB in the end (delta: -36.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 01:03:11,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.52ms. Allocated memory is still 188.7MB. Free memory was 155.3MB in the beginning and 151.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:03:11,768 INFO L158 Benchmark]: Boogie Preprocessor took 52.56ms. Allocated memory is still 188.7MB. Free memory was 151.9MB in the beginning and 149.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:03:11,768 INFO L158 Benchmark]: RCFGBuilder took 1281.74ms. Allocated memory is still 188.7MB. Free memory was 149.8MB in the beginning and 146.5MB in the end (delta: 3.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-11-12 01:03:11,769 INFO L158 Benchmark]: TraceAbstraction took 1372.10ms. Allocated memory is still 188.7MB. Free memory was 145.3MB in the beginning and 99.4MB in the end (delta: 45.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-12 01:03:11,770 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 188.7MB. Free memory was 99.4MB in the beginning and 99.2MB in the end (delta: 239.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:03:11,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 188.7MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.07ms. Allocated memory is still 188.7MB. Free memory was 118.7MB in the beginning and 155.3MB in the end (delta: -36.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.52ms. Allocated memory is still 188.7MB. Free memory was 155.3MB in the beginning and 151.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.56ms. Allocated memory is still 188.7MB. Free memory was 151.9MB in the beginning and 149.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1281.74ms. Allocated memory is still 188.7MB. Free memory was 149.8MB in the beginning and 146.5MB in the end (delta: 3.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1372.10ms. Allocated memory is still 188.7MB. Free memory was 145.3MB in the beginning and 99.4MB in the end (delta: 45.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 188.7MB. Free memory was 99.4MB in the beginning and 99.2MB in the end (delta: 239.9kB). 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 someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someUnaryDOUBLEoperation at line 80. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 50; [L23] signed char var_1_3 = 8; [L24] signed char var_1_4 = 10; [L25] double var_1_5 = 16.5; [L26] signed char var_1_6 = 64; [L27] signed char var_1_7 = 2; [L28] unsigned short int var_1_8 = 256; [L29] unsigned short int var_1_10 = 63583; [L30] unsigned short int var_1_11 = 33789; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_14 = 0; [L33] signed long int var_1_15 = 8; [L34] signed short int var_1_16 = -16; [L35] signed short int var_1_18 = 16; [L36] signed short int var_1_19 = 25; [L37] signed short int var_1_20 = 25; [L38] signed short int var_1_21 = 50; [L39] signed long int var_1_22 = -8; [L40] unsigned long int var_1_26 = 10; [L41] signed long int var_1_28 = -10000; [L42] signed long int var_1_29 = -1263929197; [L43] signed short int var_1_31 = 1; [L44] unsigned char var_1_36 = 32; [L45] double var_1_39 = 3.6; [L46] double var_1_40 = 24.25; [L47] double var_1_41 = 31.25; [L48] unsigned long int var_1_42 = 10; [L49] unsigned char last_1_var_1_12 = 1; [L182] isInitial = 1 [L183] FCALL initially() [L184] COND TRUE 1 [L185] CALL updateLastVariables() [L175] last_1_var_1_12 = var_1_12 [L185] RET updateLastVariables() [L186] CALL updateVariables() [L139] var_1_3 = __VERIFIER_nondet_char() [L140] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L141] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L142] var_1_4 = __VERIFIER_nondet_char() [L143] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L144] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L145] var_1_6 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=2, var_1_8=256] [L147] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=2, var_1_8=256] [L148] var_1_7 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L150] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L151] var_1_10 = __VERIFIER_nondet_ushort() [L152] CALL assume_abort_if_not(var_1_10 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_10 >= 49150) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L153] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L154] var_1_11 = __VERIFIER_nondet_ushort() [L155] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L156] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L157] var_1_14 = __VERIFIER_nondet_uchar() [L158] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L159] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L160] var_1_20 = __VERIFIER_nondet_short() [L161] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L162] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L163] var_1_21 = __VERIFIER_nondet_short() [L164] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L165] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L166] var_1_29 = __VERIFIER_nondet_long() [L167] CALL assume_abort_if_not(var_1_29 >= -2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_29 >= -2147483646) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L168] CALL assume_abort_if_not(var_1_29 <= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_29 <= -1073741823) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L169] var_1_40 = __VERIFIER_nondet_double() [L170] CALL assume_abort_if_not((var_1_40 >= -922337.2036854765600e+13F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854765600e+12F && var_1_40 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=2, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not((var_1_40 >= -922337.2036854765600e+13F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854765600e+12F && var_1_40 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=2, var_1_41=125/4, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L171] var_1_41 = __VERIFIER_nondet_double() [L172] CALL assume_abort_if_not((var_1_41 >= -922337.2036854765600e+13F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854765600e+12F && var_1_41 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=2, var_1_41=3, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not((var_1_41 >= -922337.2036854765600e+13F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854765600e+12F && var_1_41 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-2147483646, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-1, var_1_40=2, var_1_41=3, var_1_42=10, var_1_4=63, var_1_5=33/2, var_1_6=63, var_1_7=0, var_1_8=256] [L186] RET updateVariables() [L187] CALL step() [L53] COND TRUE var_1_11 > var_1_7 [L54] COND FALSE !(\read(var_1_14)) [L58] var_1_26 = var_1_7 [L59] COND TRUE ((((-256) < 0 ) ? -(-256) : (-256))) < var_1_11 [L60] var_1_28 = (5 - (((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) - var_1_21)) [L64] COND TRUE var_1_10 > var_1_15 [L65] COND TRUE var_1_29 < var_1_15 [L66] COND TRUE var_1_29 <= (-64 & var_1_11) [L67] var_1_31 = ((((var_1_7) > (((((8) < (var_1_4)) ? (8) : (var_1_4))))) ? (var_1_7) : (((((8) < (var_1_4)) ? (8) : (var_1_4)))))) [L73] COND FALSE !(((((((((var_1_8) > (var_1_18)) ? (var_1_8) : (var_1_18)))) > (var_1_6)) ? (((((var_1_8) > (var_1_18)) ? (var_1_8) : (var_1_18)))) : (var_1_6))) > var_1_10) [L78] var_1_36 = var_1_7 [L80] var_1_39 = ((((((((var_1_40) < 0 ) ? -(var_1_40) : (var_1_40)))) > (((((var_1_41) < (100.75)) ? (var_1_41) : (100.75))))) ? (((((var_1_40) < 0 ) ? -(var_1_40) : (var_1_40)))) : (((((var_1_41) < (100.75)) ? (var_1_41) : (100.75)))))) [L81] COND FALSE !(var_1_11 <= (~ ((((var_1_6) < (var_1_4)) ? (var_1_6) : (var_1_4))))) [L92] var_1_42 = var_1_7 [L94] signed char stepLocal_1 = var_1_6; [L95] unsigned char stepLocal_0 = last_1_var_1_12; [L96] COND FALSE !(-25 == stepLocal_1) [L101] var_1_8 = ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))) [L103] signed char stepLocal_2 = var_1_7; [L104] COND TRUE var_1_8 >= stepLocal_2 [L105] var_1_12 = (! var_1_14) [L107] COND TRUE \read(var_1_12) [L108] var_1_1 = (var_1_3 + var_1_4) [L110] COND TRUE var_1_4 >= (var_1_6 - var_1_7) [L111] COND TRUE \read(var_1_12) [L112] var_1_5 = 8.25 [L115] signed char stepLocal_4 = var_1_6; [L116] COND TRUE var_1_1 < stepLocal_4 [L117] var_1_18 = (var_1_6 - var_1_7) [L121] COND TRUE \read(var_1_12) [L122] var_1_19 = ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6) [L124] COND TRUE -64 > (var_1_6 + var_1_19) [L125] var_1_15 = (var_1_11 - var_1_7) [L133] signed long int stepLocal_3 = ((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10); [L134] COND FALSE !(var_1_19 > stepLocal_3) [L187] RET step() [L188] CALL, EXPR property() [L178-L179] return (((((((var_1_12 ? (var_1_1 == ((signed char) (var_1_3 + var_1_4))) : 1) && ((var_1_4 >= (var_1_6 - var_1_7)) ? (var_1_12 ? (var_1_5 == ((double) 8.25)) : 1) : 1)) && ((-25 == var_1_6) ? ((last_1_var_1_12 && last_1_var_1_12) ? (var_1_8 == ((unsigned short int) ((((((var_1_10 - 10) - 16)) > ((var_1_11 - var_1_7))) ? (((var_1_10 - 10) - 16)) : ((var_1_11 - var_1_7)))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))))))) && ((var_1_8 >= var_1_7) ? (var_1_12 == ((unsigned char) (! var_1_14))) : 1)) && ((-64 > (var_1_6 + var_1_19)) ? (var_1_15 == ((signed long int) (var_1_11 - var_1_7))) : ((! var_1_12) ? (var_1_12 ? (var_1_15 == ((signed long int) 4)) : 1) : 1))) && ((var_1_19 > (((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10))) ? (var_1_16 == ((signed short int) var_1_4)) : 1)) && ((var_1_1 < var_1_6) ? (var_1_18 == ((signed short int) (var_1_6 - var_1_7))) : (var_1_18 == ((signed short int) (((((var_1_6 + var_1_4)) < (var_1_1)) ? ((var_1_6 + var_1_4)) : (var_1_1))))))) && (var_1_12 ? (var_1_19 == ((signed short int) ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6))) : 1) ; [L188] RET, EXPR property() [L188] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=63, var_1_19=-128, var_1_1=62, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=0, var_1_28=-2147483450, var_1_29=-2147483646, var_1_31=8, var_1_36=0, var_1_39=4, var_1_3=-1, var_1_40=2, var_1_41=3, var_1_42=0, var_1_4=63, var_1_5=33/4, var_1_6=63, var_1_7=0, var_1_8=49151] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49151, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=63, var_1_19=-128, var_1_1=62, var_1_20=191, var_1_21=191, var_1_22=-8, var_1_26=0, var_1_28=-2147483450, var_1_29=-2147483646, var_1_31=8, var_1_36=0, var_1_39=4, var_1_3=-1, var_1_40=2, var_1_41=3, var_1_42=0, var_1_4=63, var_1_5=33/4, var_1_6=63, var_1_7=0, var_1_8=49151] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 22, 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=43occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 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 [2023-11-12 01:03:11,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX --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 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:03:14,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:03:14,777 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 01:03:14,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:03:14,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:03:14,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:03:14,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:03:14,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:03:14,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:03:14,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:03:14,856 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:03:14,857 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:03:14,858 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:03:14,860 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:03:14,860 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:03:14,861 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:03:14,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:03:14,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:03:14,863 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:03:14,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:03:14,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:03:14,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:03:14,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:03:14,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:03:14,867 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:03:14,868 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:03:14,868 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:03:14,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:03:14,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:03:14,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:03:14,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:03:14,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:03:14,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:03:14,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:14,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:03:14,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:03:14,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:03:14,875 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:03:14,875 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:14,876 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:03:14,877 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:03:14,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:03:14,878 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 [2023-11-12 01:03:15,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:03:15,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:03:15,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:03:15,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:03:15,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:03:15,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2023-11-12 01:03:18,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:03:19,161 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:03:19,162 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2023-11-12 01:03:19,174 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data/9031db5c3/e987fe00b9a448f0bb501144535226e6/FLAG62927c941 [2023-11-12 01:03:19,196 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/data/9031db5c3/e987fe00b9a448f0bb501144535226e6 [2023-11-12 01:03:19,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:03:19,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:03:19,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:19,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:03:19,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:03:19,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fd7b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19, skipping insertion in model container [2023-11-12 01:03:19,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,284 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:03:19,433 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2023-11-12 01:03:19,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:03:19,533 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:03:19,544 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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2023-11-12 01:03:19,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:03:19,611 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:03:19,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19 WrapperNode [2023-11-12 01:03:19,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:19,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:03:19,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:03:19,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:03:19,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,677 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 173 [2023-11-12 01:03:19,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:03:19,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:03:19,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:03:19,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:03:19,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:03:19,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:03:19,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:03:19,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:03:19,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (1/1) ... [2023-11-12 01:03:19,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:19,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:19,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:03:19,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:03:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:03:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 01:03:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:03:19,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:03:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:03:19,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:03:19,960 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:03:19,963 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:03:20,676 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:03:20,689 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:03:20,689 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:03:20,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:20 BoogieIcfgContainer [2023-11-12 01:03:20,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:03:20,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:03:20,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:03:20,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:03:20,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:03:19" (1/3) ... [2023-11-12 01:03:20,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ada271f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:20, skipping insertion in model container [2023-11-12 01:03:20,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:19" (2/3) ... [2023-11-12 01:03:20,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ada271f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:20, skipping insertion in model container [2023-11-12 01:03:20,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:20" (3/3) ... [2023-11-12 01:03:20,710 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2023-11-12 01:03:20,732 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:03:20,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:03:20,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:03:20,805 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;@59173161, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:03:20,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:03:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:03:20,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 01:03:20,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:20,841 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:20,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:20,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash 851425572, now seen corresponding path program 1 times [2023-11-12 01:03:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:20,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642721304] [2023-11-12 01:03:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:20,874 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 [2023-11-12 01:03:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:20,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:20,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:21,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 01:03:21,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-11-12 01:03:21,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:03:21,371 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:21,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642721304] [2023-11-12 01:03:21,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642721304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:21,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:03:21,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:03:21,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780867669] [2023-11-12 01:03:21,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:21,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:03:21,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:03:21,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:03:21,437 INFO L87 Difference]: Start difference. First operand has 82 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 01:03:21,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:21,502 INFO L93 Difference]: Finished difference Result 157 states and 274 transitions. [2023-11-12 01:03:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:03:21,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2023-11-12 01:03:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:21,512 INFO L225 Difference]: With dead ends: 157 [2023-11-12 01:03:21,512 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 01:03:21,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:03:21,520 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:21,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 01:03:21,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 01:03:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-12 01:03:21,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 states have internal predecessors, (78), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:03:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 122 transitions. [2023-11-12 01:03:21,571 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 122 transitions. Word has length 150 [2023-11-12 01:03:21,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:21,572 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 122 transitions. [2023-11-12 01:03:21,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 01:03:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 122 transitions. [2023-11-12 01:03:21,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 01:03:21,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:21,578 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:21,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:21,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:21,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:21,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1371466408, now seen corresponding path program 1 times [2023-11-12 01:03:21,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:21,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935294678] [2023-11-12 01:03:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:21,797 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 [2023-11-12 01:03:21,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:21,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:21,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:22,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:03:22,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 453 proven. 39 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2023-11-12 01:03:23,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:23,308 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935294678] [2023-11-12 01:03:23,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935294678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1221822689] [2023-11-12 01:03:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:23,316 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:23,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:23,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:23,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 01:03:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:24,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 01:03:24,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 01:03:24,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:03:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1221822689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:24,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 01:03:24,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-12 01:03:24,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996903609] [2023-11-12 01:03:24,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:24,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:03:24,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:24,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:03:24,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:03:24,198 INFO L87 Difference]: Start difference. First operand 78 states and 122 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:03:24,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:24,494 INFO L93 Difference]: Finished difference Result 205 states and 321 transitions. [2023-11-12 01:03:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:03:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2023-11-12 01:03:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:24,500 INFO L225 Difference]: With dead ends: 205 [2023-11-12 01:03:24,500 INFO L226 Difference]: Without dead ends: 130 [2023-11-12 01:03:24,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:03:24,503 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 80 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:24,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 240 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 01:03:24,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-12 01:03:24,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2023-11-12 01:03:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 92 states have (on average 1.4565217391304348) internal successors, (134), 93 states have internal predecessors, (134), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-12 01:03:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 198 transitions. [2023-11-12 01:03:24,554 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 198 transitions. Word has length 150 [2023-11-12 01:03:24,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:24,558 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 198 transitions. [2023-11-12 01:03:24,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:03:24,558 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 198 transitions. [2023-11-12 01:03:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 01:03:24,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:24,562 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:24,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:24,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:24,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:24,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:24,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1794168234, now seen corresponding path program 1 times [2023-11-12 01:03:24,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:24,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885310123] [2023-11-12 01:03:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:24,970 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 [2023-11-12 01:03:24,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:24,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:24,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:25,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 01:03:25,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 481 proven. 33 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-12 01:03:25,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:25,678 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:25,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885310123] [2023-11-12 01:03:25,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885310123] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:25,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1237249843] [2023-11-12 01:03:25,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:25,680 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:25,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:25,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:25,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-12 01:03:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:26,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:03:26,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 481 proven. 33 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-12 01:03:26,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1237249843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943289911] [2023-11-12 01:03:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:26,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:26,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:26,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 01:03:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:27,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 01:03:27,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 481 proven. 33 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-12 01:03:27,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:27,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943289911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:27,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2023-11-12 01:03:27,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 8 [2023-11-12 01:03:27,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972919185] [2023-11-12 01:03:27,404 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2023-11-12 01:03:27,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 01:03:27,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:27,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 01:03:27,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:03:27,407 INFO L87 Difference]: Start difference. First operand 127 states and 198 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-12 01:03:27,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:27,939 INFO L93 Difference]: Finished difference Result 206 states and 318 transitions. [2023-11-12 01:03:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 01:03:27,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 150 [2023-11-12 01:03:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:27,951 INFO L225 Difference]: With dead ends: 206 [2023-11-12 01:03:27,951 INFO L226 Difference]: Without dead ends: 82 [2023-11-12 01:03:27,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-11-12 01:03:27,954 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 129 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:27,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 193 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 01:03:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-12 01:03:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2023-11-12 01:03:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 55 states have internal predecessors, (73), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:03:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions. [2023-11-12 01:03:27,983 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 150 [2023-11-12 01:03:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:27,986 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 117 transitions. [2023-11-12 01:03:27,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-12 01:03:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2023-11-12 01:03:27,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-12 01:03:27,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:27,995 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:28,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:28,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:28,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:28,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:28,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:28,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash 708555252, now seen corresponding path program 1 times [2023-11-12 01:03:28,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:28,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995218174] [2023-11-12 01:03:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:28,604 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 [2023-11-12 01:03:28,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:28,605 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:28,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-12 01:03:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:28,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 01:03:28,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:28,984 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 463 proven. 24 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-12 01:03:28,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 39 proven. 24 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:29,181 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:29,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995218174] [2023-11-12 01:03:29,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995218174] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:29,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [241462235] [2023-11-12 01:03:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:29,183 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:29,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:29,184 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:29,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-12 01:03:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:29,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 01:03:29,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:29,680 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 01:03:29,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:03:29,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [241462235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:29,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 01:03:29,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 9 [2023-11-12 01:03:29,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250740433] [2023-11-12 01:03:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:29,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:03:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:03:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:03:29,684 INFO L87 Difference]: Start difference. First operand 80 states and 117 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:03:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:29,954 INFO L93 Difference]: Finished difference Result 350 states and 511 transitions. [2023-11-12 01:03:29,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:03:29,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2023-11-12 01:03:29,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:29,959 INFO L225 Difference]: With dead ends: 350 [2023-11-12 01:03:29,959 INFO L226 Difference]: Without dead ends: 273 [2023-11-12 01:03:29,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 443 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-12 01:03:29,962 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 248 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:29,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 520 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:03:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-12 01:03:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2023-11-12 01:03:30,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 188 states have (on average 1.3085106382978724) internal successors, (246), 190 states have internal predecessors, (246), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-12 01:03:30,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 382 transitions. [2023-11-12 01:03:30,022 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 382 transitions. Word has length 151 [2023-11-12 01:03:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:30,023 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 382 transitions. [2023-11-12 01:03:30,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:03:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 382 transitions. [2023-11-12 01:03:30,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-12 01:03:30,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:30,026 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:30,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:30,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-12 01:03:30,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:30,448 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:30,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash 157374064, now seen corresponding path program 1 times [2023-11-12 01:03:30,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:30,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952111176] [2023-11-12 01:03:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:30,449 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 [2023-11-12 01:03:30,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:30,451 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:30,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:30,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 01:03:30,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 463 proven. 24 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-12 01:03:30,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 39 proven. 24 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:31,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:31,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952111176] [2023-11-12 01:03:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952111176] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:31,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [183079494] [2023-11-12 01:03:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:31,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:31,040 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:31,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-12 01:03:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:31,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:03:31,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 01:03:32,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:03:32,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [183079494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:32,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 01:03:32,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-11-12 01:03:32,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033896546] [2023-11-12 01:03:32,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:32,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:03:32,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:03:32,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-12 01:03:32,657 INFO L87 Difference]: Start difference. First operand 265 states and 382 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:03:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:33,278 INFO L93 Difference]: Finished difference Result 786 states and 1121 transitions. [2023-11-12 01:03:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:03:33,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2023-11-12 01:03:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:33,288 INFO L225 Difference]: With dead ends: 786 [2023-11-12 01:03:33,288 INFO L226 Difference]: Without dead ends: 524 [2023-11-12 01:03:33,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 441 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-12 01:03:33,294 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 68 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:33,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 312 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 01:03:33,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-12 01:03:33,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 518. [2023-11-12 01:03:33,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 368 states have (on average 1.2826086956521738) internal successors, (472), 373 states have internal predecessors, (472), 132 states have call successors, (132), 17 states have call predecessors, (132), 17 states have return successors, (132), 127 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-12 01:03:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 736 transitions. [2023-11-12 01:03:33,375 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 736 transitions. Word has length 151 [2023-11-12 01:03:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:33,375 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 736 transitions. [2023-11-12 01:03:33,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:03:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 736 transitions. [2023-11-12 01:03:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-12 01:03:33,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:33,379 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:33,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:33,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:33,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:33,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:33,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash 837432434, now seen corresponding path program 1 times [2023-11-12 01:03:33,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:33,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958076297] [2023-11-12 01:03:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:33,796 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 [2023-11-12 01:03:33,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:33,797 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:33,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:33,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 01:03:33,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 463 proven. 24 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-12 01:03:34,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 39 proven. 24 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:34,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:34,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958076297] [2023-11-12 01:03:34,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958076297] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:34,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1789750751] [2023-11-12 01:03:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:34,317 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:34,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:34,318 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:34,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-12 01:03:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:35,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 01:03:35,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 453 proven. 39 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2023-11-12 01:03:35,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:36,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1789750751] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:36,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508131255] [2023-11-12 01:03:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:36,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:36,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:36,033 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:36,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 01:03:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:36,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:03:36,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 453 proven. 39 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2023-11-12 01:03:36,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:36,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508131255] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:36,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2023-11-12 01:03:36,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 11 [2023-11-12 01:03:36,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996519511] [2023-11-12 01:03:36,967 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2023-11-12 01:03:36,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 01:03:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 01:03:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-12 01:03:36,970 INFO L87 Difference]: Start difference. First operand 518 states and 736 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (52), 4 states have call predecessors, (52), 7 states have return successors, (53), 4 states have call predecessors, (53), 4 states have call successors, (53) [2023-11-12 01:03:38,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:38,228 INFO L93 Difference]: Finished difference Result 1095 states and 1522 transitions. [2023-11-12 01:03:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 01:03:38,231 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (52), 4 states have call predecessors, (52), 7 states have return successors, (53), 4 states have call predecessors, (53), 4 states have call successors, (53) Word has length 151 [2023-11-12 01:03:38,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:38,237 INFO L225 Difference]: With dead ends: 1095 [2023-11-12 01:03:38,237 INFO L226 Difference]: Without dead ends: 635 [2023-11-12 01:03:38,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 785 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2023-11-12 01:03:38,240 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 282 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:38,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 421 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 01:03:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2023-11-12 01:03:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 605. [2023-11-12 01:03:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 414 states have (on average 1.214975845410628) internal successors, (503), 416 states have internal predecessors, (503), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 160 states have call predecessors, (162), 162 states have call successors, (162) [2023-11-12 01:03:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 827 transitions. [2023-11-12 01:03:38,322 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 827 transitions. Word has length 151 [2023-11-12 01:03:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:38,323 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 827 transitions. [2023-11-12 01:03:38,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (52), 4 states have call predecessors, (52), 7 states have return successors, (53), 4 states have call predecessors, (53), 4 states have call successors, (53) [2023-11-12 01:03:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 827 transitions. [2023-11-12 01:03:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-12 01:03:38,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:38,326 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:38,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:38,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:38,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:38,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:38,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:38,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1761871723, now seen corresponding path program 1 times [2023-11-12 01:03:38,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:38,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538455675] [2023-11-12 01:03:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:38,934 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 [2023-11-12 01:03:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:38,935 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:38,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 (15)] Waiting until timeout for monitored process [2023-11-12 01:03:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:39,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:03:39,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2023-11-12 01:03:39,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:39,794 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:39,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538455675] [2023-11-12 01:03:39,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538455675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:39,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1085204179] [2023-11-12 01:03:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:39,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:39,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:39,797 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:39,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-12 01:03:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:40,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 01:03:40,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:40,927 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2023-11-12 01:03:40,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:41,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1085204179] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:41,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330495115] [2023-11-12 01:03:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:41,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:41,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:41,172 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:41,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-12 01:03:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:41,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:03:41,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2023-11-12 01:03:41,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-12 01:03:42,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330495115] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:42,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 01:03:42,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5, 6, 5, 6] total 10 [2023-11-12 01:03:42,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120481532] [2023-11-12 01:03:42,043 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 01:03:42,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 01:03:42,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:42,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 01:03:42,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-12 01:03:42,046 INFO L87 Difference]: Start difference. First operand 605 states and 827 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-11-12 01:03:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:43,553 INFO L93 Difference]: Finished difference Result 1341 states and 1811 transitions. [2023-11-12 01:03:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 01:03:43,554 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 152 [2023-11-12 01:03:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:43,563 INFO L225 Difference]: With dead ends: 1341 [2023-11-12 01:03:43,563 INFO L226 Difference]: Without dead ends: 802 [2023-11-12 01:03:43,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 899 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=208, Unknown=0, NotChecked=0, Total=342 [2023-11-12 01:03:43,568 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 217 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:43,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 348 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 01:03:43,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-11-12 01:03:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 759. [2023-11-12 01:03:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 501 states have (on average 1.1676646706586826) internal successors, (585), 506 states have internal predecessors, (585), 216 states have call successors, (216), 41 states have call predecessors, (216), 41 states have return successors, (216), 211 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-12 01:03:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1017 transitions. [2023-11-12 01:03:43,678 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1017 transitions. Word has length 152 [2023-11-12 01:03:43,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:43,679 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 1017 transitions. [2023-11-12 01:03:43,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-11-12 01:03:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1017 transitions. [2023-11-12 01:03:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 01:03:43,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:43,683 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:43,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:43,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 (15)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:44,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:44,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:44,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:44,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:44,296 INFO L85 PathProgramCache]: Analyzing trace with hash -793783231, now seen corresponding path program 1 times [2023-11-12 01:03:44,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:44,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728962998] [2023-11-12 01:03:44,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:44,297 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 [2023-11-12 01:03:44,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:44,298 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:44,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09b3bb2-0936-4fc9-991c-e0c5cebcfc40/bin/utaipan-verify-NcY6lQBIFX/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 (18)] Waiting until timeout for monitored process [2023-11-12 01:03:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:44,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-12 01:03:44,622 INFO L285 TraceCheckSpWp]: Computing forward predicates...