./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ --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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:48:31,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:48:31,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:48:31,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:48:31,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:48:31,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:48:31,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:48:31,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:48:31,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:48:31,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:48:31,631 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:48:31,632 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:48:31,633 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:48:31,637 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:48:31,638 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:48:31,638 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:48:31,640 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:48:31,640 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:48:31,641 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:48:31,641 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:48:31,642 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:48:31,642 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:48:31,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:48:31,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:48:31,644 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:48:31,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:48:31,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:48:31,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:48:31,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:48:31,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:48:31,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:48:31,647 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:48:31,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:48:31,648 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:48:31,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:48:31,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:48:31,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:31,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:48:31,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:48:31,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:48:31,650 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:48:31,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:48:31,650 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:48:31,650 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:48:31,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:48:31,651 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_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c [2023-11-19 04:48:31,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:48:31,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:48:31,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:48:31,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:48:31,992 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:48:31,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-19 04:48:35,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:35,326 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:35,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-19 04:48:35,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data/7270b2782/e212b2209dc547318cec7b5df0e10fea/FLAGa6a04eb87 [2023-11-19 04:48:35,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data/7270b2782/e212b2209dc547318cec7b5df0e10fea [2023-11-19 04:48:35,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:35,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:35,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:35,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:35,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:35,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1cd1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35, skipping insertion in model container [2023-11-19 04:48:35,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:35,611 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_2b07febd-3c74-4251-ba57-f77fea354e0f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-19 04:48:35,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:35,704 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:35,724 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_2b07febd-3c74-4251-ba57-f77fea354e0f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-19 04:48:35,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:35,781 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:35,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35 WrapperNode [2023-11-19 04:48:35,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:35,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:35,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:35,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:35,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,854 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145 [2023-11-19 04:48:35,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:35,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:35,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:35,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:35,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:35,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:35,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:35,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:35,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (1/1) ... [2023-11-19 04:48:35,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:35,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:35,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:35,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:48:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:48:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:36,040 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:36,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:36,404 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:36,630 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:36,630 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:48:36,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:36 BoogieIcfgContainer [2023-11-19 04:48:36,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:36,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:36,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:36,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:36,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:35" (1/3) ... [2023-11-19 04:48:36,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241d3f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:36, skipping insertion in model container [2023-11-19 04:48:36,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:35" (2/3) ... [2023-11-19 04:48:36,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241d3f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:36, skipping insertion in model container [2023-11-19 04:48:36,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:36" (3/3) ... [2023-11-19 04:48:36,647 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-19 04:48:36,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:36,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:48:36,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:36,767 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;@8e4d643, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:36,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:48:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:48:36,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 04:48:36,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:36,787 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:36,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:36,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:36,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1542946712, now seen corresponding path program 1 times [2023-11-19 04:48:36,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:36,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738644513] [2023-11-19 04:48:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:36,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:37,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:48:37,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726071884] [2023-11-19 04:48:37,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:37,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:48:37,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:37,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:48:37,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:48:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:48:37,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:48:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:48:37,503 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:48:37,506 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:48:37,508 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:48:37,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 04:48:37,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:48:37,721 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:48:37,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:48:37,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:48:37 BoogieIcfgContainer [2023-11-19 04:48:37,843 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:48:37,844 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:48:37,844 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:48:37,845 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:48:37,845 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:36" (3/4) ... [2023-11-19 04:48:37,849 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:48:37,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:48:37,852 INFO L158 Benchmark]: Toolchain (without parser) took 2485.63ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 101.3MB in the beginning and 110.6MB in the end (delta: -9.2MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2023-11-19 04:48:37,852 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:48:37,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.28ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 88.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:48:37,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.66ms. Allocated memory is still 134.2MB. Free memory was 88.8MB in the beginning and 86.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:48:37,857 INFO L158 Benchmark]: Boogie Preprocessor took 28.32ms. Allocated memory is still 134.2MB. Free memory was 86.0MB in the beginning and 84.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:48:37,861 INFO L158 Benchmark]: RCFGBuilder took 751.81ms. Allocated memory is still 134.2MB. Free memory was 84.6MB in the beginning and 49.5MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 04:48:37,863 INFO L158 Benchmark]: TraceAbstraction took 1204.25ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 48.9MB in the beginning and 110.6MB in the end (delta: -61.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:48:37,865 INFO L158 Benchmark]: Witness Printer took 6.08ms. Allocated memory is still 174.1MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:48:37,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.28ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 88.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.66ms. Allocated memory is still 134.2MB. Free memory was 88.8MB in the beginning and 86.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.32ms. Allocated memory is still 134.2MB. Free memory was 86.0MB in the beginning and 84.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 751.81ms. Allocated memory is still 134.2MB. Free memory was 84.6MB in the beginning and 49.5MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1204.25ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 48.9MB in the beginning and 110.6MB in the end (delta: -61.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.08ms. Allocated memory is still 174.1MB. Free memory is still 110.6MB. 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 bitwiseAnd at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] signed long int var_1_7 = 1000000; [L29] signed long int var_1_8 = 16; [L30] signed long int var_1_9 = 15; [L31] signed short int var_1_10 = 500; [L32] unsigned short int var_1_11 = 8; [L33] unsigned char var_1_13 = 0; [L34] unsigned short int var_1_14 = 100; [L35] unsigned char var_1_15 = 0; [L36] unsigned char var_1_16 = 0; [L37] signed long int var_1_17 = 2; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] FCALL updateLastVariables() [L104] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_char() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L63] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L64] var_1_3 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L66] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L67] var_1_4 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L69] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L70] var_1_5 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L72] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L73] var_1_6 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=16, var_1_9=15] [L75] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=16, var_1_9=15] [L76] var_1_8 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=15] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=15] [L78] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=15] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=15] [L79] var_1_9 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L81] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L82] var_1_14 = __VERIFIER_nondet_ushort() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L84] CALL assume_abort_if_not(var_1_14 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 65535) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L85] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L86] var_1_15 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L88] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L89] var_1_16 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L91] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=1000000, var_1_8=-2147483647, var_1_9=-2147483648] [L104] RET updateVariables() [L105] CALL step() [L41] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L42] EXPR var_1_6 & var_1_3 [L42] signed long int stepLocal_0 = (~ var_1_5) * (var_1_6 & var_1_3); [L43] COND FALSE !(stepLocal_0 >= var_1_4) [L46] var_1_7 = var_1_9 [L48] var_1_10 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L49] signed long int stepLocal_1 = var_1_6 / var_1_14; [L50] COND FALSE !(stepLocal_1 < -100) [L53] var_1_13 = (var_1_15 && var_1_16) [L55] var_1_17 = var_1_8 [L56] COND TRUE ! var_1_13 [L57] var_1_11 = (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)) [L105] RET step() [L106] CALL, EXPR property() [L96] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9))) [L96] EXPR var_1_6 & var_1_3 [L96] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9))) [L96-L97] return (((((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9)))) && (var_1_10 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))))) && ((! var_1_13) ? (var_1_11 == ((unsigned short int) (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)))) : 1)) && (((var_1_6 / var_1_14) < -100) ? (var_1_13 == ((unsigned char) (! (! (! var_1_15))))) : (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))))) && (var_1_17 == ((signed long int) var_1_8)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=63, var_1_11=128, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=-2147483647, var_1_1=0, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=-2147483648, var_1_8=-2147483647, var_1_9=-2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=63, var_1_11=128, var_1_13=0, var_1_14=22, var_1_15=0, var_1_16=0, var_1_17=-2147483647, var_1_1=0, var_1_2=63, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=63, var_1_7=-2147483648, var_1_8=-2147483647, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 21, 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=40occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 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 [2023-11-19 04:48:37,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ --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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:48:40,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:48:40,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:48:40,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:48:40,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:48:40,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:48:40,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:48:40,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:48:40,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:48:40,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:48:40,639 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:48:40,639 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:48:40,640 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:48:40,641 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:48:40,641 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:48:40,642 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:48:40,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:48:40,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:48:40,644 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:48:40,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:48:40,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:48:40,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:48:40,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:48:40,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:48:40,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:48:40,649 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:48:40,650 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:48:40,650 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:48:40,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:48:40,651 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:48:40,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:48:40,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:48:40,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:48:40,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:40,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:48:40,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:48:40,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:48:40,655 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:48:40,656 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:48:40,656 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:48:40,656 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:48:40,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:48:40,657 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_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c [2023-11-19 04:48:41,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:48:41,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:48:41,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:48:41,107 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:48:41,107 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:48:41,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-19 04:48:44,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:44,443 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:44,445 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-19 04:48:44,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data/8e189d632/ba7baf3e9ec44af7a85bb98188eaadd2/FLAG0a9d8487e [2023-11-19 04:48:44,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/data/8e189d632/ba7baf3e9ec44af7a85bb98188eaadd2 [2023-11-19 04:48:44,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:44,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:44,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:44,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:44,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:44,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6bf9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44, skipping insertion in model container [2023-11-19 04:48:44,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:44,661 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_2b07febd-3c74-4251-ba57-f77fea354e0f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-19 04:48:44,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:44,739 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:44,759 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_2b07febd-3c74-4251-ba57-f77fea354e0f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-19 04:48:44,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:44,823 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:44,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44 WrapperNode [2023-11-19 04:48:44,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:44,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:44,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:44,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:44,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,959 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-19 04:48:44,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:44,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:44,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:44,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:44,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:44,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:45,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:45,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:45,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:45,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:45,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:45,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:45,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:45,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:45,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (1/1) ... [2023-11-19 04:48:45,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:45,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:45,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:45,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:48:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:48:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:48:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:45,245 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:45,247 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:45,593 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:45,608 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:45,608 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:48:45,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:45 BoogieIcfgContainer [2023-11-19 04:48:45,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:45,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:45,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:45,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:45,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:44" (1/3) ... [2023-11-19 04:48:45,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f980af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:45, skipping insertion in model container [2023-11-19 04:48:45,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:44" (2/3) ... [2023-11-19 04:48:45,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f980af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:45, skipping insertion in model container [2023-11-19 04:48:45,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:45" (3/3) ... [2023-11-19 04:48:45,627 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-19 04:48:45,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:45,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:48:45,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:45,702 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;@607bb12b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:45,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:48:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:48:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 04:48:45,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:45,723 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:45,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:45,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1371732706, now seen corresponding path program 1 times [2023-11-19 04:48:45,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:48:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463776794] [2023-11-19 04:48:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:45,745 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 [2023-11-19 04:48:45,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:48:45,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:48:45,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:48:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:46,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:48:46,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:48:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-19 04:48:46,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:48:46,111 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:48:46,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463776794] [2023-11-19 04:48:46,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463776794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:48:46,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:48:46,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:48:46,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476216024] [2023-11-19 04:48:46,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:48:46,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:48:46,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:48:46,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:48:46,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:48:46,153 INFO L87 Difference]: Start difference. First operand has 55 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 04:48:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:46,183 INFO L93 Difference]: Finished difference Result 103 states and 177 transitions. [2023-11-19 04:48:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:48:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2023-11-19 04:48:46,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:46,194 INFO L225 Difference]: With dead ends: 103 [2023-11-19 04:48:46,194 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 04:48:46,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:48:46,202 INFO L413 NwaCegarLoop]: 74 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, 74 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 [2023-11-19 04:48:46,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:48:46,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 04:48:46,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 04:48:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:48:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2023-11-19 04:48:46,253 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 129 [2023-11-19 04:48:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:46,254 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2023-11-19 04:48:46,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 04:48:46,254 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2023-11-19 04:48:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 04:48:46,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:46,259 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:46,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:48:46,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:48:46,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:46,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:46,465 INFO L85 PathProgramCache]: Analyzing trace with hash -178758496, now seen corresponding path program 1 times [2023-11-19 04:48:46,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:48:46,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146217365] [2023-11-19 04:48:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:46,466 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 [2023-11-19 04:48:46,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:48:46,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:48:46,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:48:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:46,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:48:46,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:48:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-19 04:48:47,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:48:48,618 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:48:48,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146217365] [2023-11-19 04:48:48,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146217365] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:48:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1975378226] [2023-11-19 04:48:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:48,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:48:48,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:48:48,624 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:48:48,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:48:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:49,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:48:49,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:48:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-19 04:48:49,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:48:50,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1975378226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:48:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706646435] [2023-11-19 04:48:50,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:50,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:48:50,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:50,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:48:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 04:48:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:50,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:48:50,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:48:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-19 04:48:50,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:48:50,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706646435] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:48:50,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:48:50,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-19 04:48:50,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239680964] [2023-11-19 04:48:50,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 04:48:50,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:48:50,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:48:50,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:48:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-19 04:48:50,966 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-19 04:48:53,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:48:53,085 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2023-11-19 04:48:53,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 04:48:53,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2023-11-19 04:48:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:48:53,096 INFO L225 Difference]: With dead ends: 111 [2023-11-19 04:48:53,096 INFO L226 Difference]: Without dead ends: 63 [2023-11-19 04:48:53,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-19 04:48:53,100 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 39 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:48:53,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 165 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 04:48:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-19 04:48:53,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2023-11-19 04:48:53,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:48:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions. [2023-11-19 04:48:53,118 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 129 [2023-11-19 04:48:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:48:53,120 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 79 transitions. [2023-11-19 04:48:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-19 04:48:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2023-11-19 04:48:53,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 04:48:53,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:53,123 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:53,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:48:53,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:48:53,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:48:53,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:48:53,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:53,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1596248866, now seen corresponding path program 1 times [2023-11-19 04:48:53,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:48:53,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739984599] [2023-11-19 04:48:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:53,731 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 [2023-11-19 04:48:53,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:48:53,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:48:53,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07febd-3c74-4251-ba57-f77fea354e0f/bin/utaipan-verify-t7M7D8N6sZ/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 (6)] Waiting until timeout for monitored process [2023-11-19 04:48:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:54,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-19 04:48:54,133 INFO L285 TraceCheckSpWp]: Computing forward predicates...