./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:18:13,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:13,556 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:18:13,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:13,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:13,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:13,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:13,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:13,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:13,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:13,590 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:13,591 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:13,591 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:13,592 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:18:13,592 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:13,593 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:13,593 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:18:13,594 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:18:13,594 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:13,595 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:18:13,595 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:18:13,596 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:18:13,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:13,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:13,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:18:13,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:18:13,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:18:13,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:13,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:13,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:13,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:13,600 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:18:13,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:13,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:13,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:13,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:13,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:13,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:13,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:13,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:13,602 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:18:13,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:18:13,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:13,603 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:13,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:13,603 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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 [2023-11-19 05:18:13,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:13,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:13,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:13,890 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:13,890 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:13,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i [2023-11-19 05:18:17,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:18:17,302 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:18:17,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i [2023-11-19 05:18:17,313 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data/9b2d376e9/cffcf1620883437fae9927db4516a1a3/FLAG1e4c73085 [2023-11-19 05:18:17,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data/9b2d376e9/cffcf1620883437fae9927db4516a1a3 [2023-11-19 05:18:17,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:18:17,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:18:17,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:17,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:18:17,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:18:17,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3608f74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17, skipping insertion in model container [2023-11-19 05:18:17,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,371 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:18:17,532 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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2023-11-19 05:18:17,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:17,604 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:18:17,615 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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2023-11-19 05:18:17,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:17,669 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:18:17,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17 WrapperNode [2023-11-19 05:18:17,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:17,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:17,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:18:17,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:18:17,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,730 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-19 05:18:17,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:17,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:18:17,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:18:17,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:18:17,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:18:17,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:18:17,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:18:17,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:18:17,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (1/1) ... [2023-11-19 05:18:17,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:17,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:18:17,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:18:17,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:18:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:18:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:18:17,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:18:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:18:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:18:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:18:17,930 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:18:17,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:18:18,288 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:18:18,570 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:18:18,571 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:18:18,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:18 BoogieIcfgContainer [2023-11-19 05:18:18,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:18:18,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:18:18,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:18:18,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:18:18,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:17" (1/3) ... [2023-11-19 05:18:18,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a25a763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:18, skipping insertion in model container [2023-11-19 05:18:18,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:17" (2/3) ... [2023-11-19 05:18:18,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a25a763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:18, skipping insertion in model container [2023-11-19 05:18:18,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:18" (3/3) ... [2023-11-19 05:18:18,587 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-19.i [2023-11-19 05:18:18,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:18:18,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:18:18,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:18:18,659 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;@3c2d5a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:18:18,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:18:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:18:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 05:18:18,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:18,674 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:18,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:18,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash 377588015, now seen corresponding path program 1 times [2023-11-19 05:18:18,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:18,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100606559] [2023-11-19 05:18:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:18,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:18:18,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413814160] [2023-11-19 05:18:18,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:18,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:18:18,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:18:18,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:18:18,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:18:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:18:19,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:18:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:18:19,451 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:18:19,454 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:18:19,455 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:18:19,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:18:19,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:18:19,669 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:18:19,673 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:18:19,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:18:19 BoogieIcfgContainer [2023-11-19 05:18:19,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:18:19,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:18:19,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:18:19,753 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:18:19,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:18" (3/4) ... [2023-11-19 05:18:19,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:18:19,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:18:19,759 INFO L158 Benchmark]: Toolchain (without parser) took 2426.34ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 98.0MB in the beginning and 119.4MB in the end (delta: -21.3MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-11-19 05:18:19,759 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 113.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:18:19,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.78ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 85.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:18:19,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.39ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 83.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:18:19,761 INFO L158 Benchmark]: Boogie Preprocessor took 35.07ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:18:19,762 INFO L158 Benchmark]: RCFGBuilder took 809.30ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 81.3MB in the beginning and 151.9MB in the end (delta: -70.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2023-11-19 05:18:19,763 INFO L158 Benchmark]: TraceAbstraction took 1172.21ms. Allocated memory is still 203.4MB. Free memory was 151.9MB in the beginning and 119.4MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 05:18:19,764 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 203.4MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:18:19,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 113.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.78ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 85.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.39ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 83.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.07ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 809.30ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 81.3MB in the beginning and 151.9MB in the end (delta: -70.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1172.21ms. Allocated memory is still 203.4MB. Free memory was 151.9MB in the beginning and 119.4MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 203.4MB. Free memory is still 119.4MB. 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 shiftLeft at line 57. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 8; [L23] unsigned char var_1_2 = 128; [L24] unsigned char var_1_3 = 64; [L25] unsigned long int var_1_4 = 1; [L26] unsigned long int var_1_5 = 5; [L27] signed char var_1_7 = 4; [L28] signed char var_1_8 = 100; [L29] unsigned char var_1_9 = 1; [L30] signed long int var_1_10 = -8; [L31] signed long int var_1_11 = 10; [L32] signed long int var_1_12 = -25; [L33] signed long int var_1_13 = -16; [L34] signed long int last_1_var_1_11 = 10; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] CALL updateLastVariables() [L93] last_1_var_1_11 = var_1_11 [L103] RET updateLastVariables() [L104] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_2 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 >= 127) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L72] var_1_4 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_4 <= 12) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_4 <= 12) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L75] var_1_5 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=4, var_1_8=100, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_5 <= 11) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 <= 11) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=4, var_1_8=100, var_1_9=1] [L78] var_1_7 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_7 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_7 >= -63) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=100, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=100, var_1_9=1] [L81] var_1_8 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L83] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L84] var_1_9 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L86] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L87] var_1_12 = __VERIFIER_nondet_long() [L88] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=127, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=127, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L89] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=127, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=127, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=127, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=127, var_1_13=-16, var_1_1=8, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L104] RET updateVariables() [L105] CALL step() [L38] COND TRUE var_1_7 < var_1_3 [L39] COND TRUE last_1_var_1_11 > var_1_7 [L40] var_1_10 = (var_1_3 - var_1_8) [L47] var_1_13 = var_1_7 [L48] signed long int stepLocal_1 = var_1_2 / var_1_12; [L49] COND TRUE ((var_1_10 * var_1_13) + var_1_8) > stepLocal_1 [L50] COND TRUE \read(var_1_9) [L51] var_1_11 = var_1_2 [L56] signed long int stepLocal_0 = var_1_11; [L57] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) [L57] COND FALSE !(((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= stepLocal_0) [L60] COND TRUE \read(var_1_9) [L61] var_1_1 = var_1_5 [L105] RET step() [L106] CALL, EXPR property() [L96] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) [L96-L97] return ((((((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= var_1_11) ? (var_1_1 == ((signed char) ((((var_1_4) > (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_4) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))))) : (var_1_9 ? (var_1_1 == ((signed char) var_1_5)) : 1)) && ((var_1_7 < var_1_3) ? ((last_1_var_1_11 > var_1_7) ? (var_1_10 == ((signed long int) (var_1_3 - var_1_8))) : 1) : (((var_1_8 + ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))) > var_1_7) ? (var_1_10 == ((signed long int) var_1_8)) : 1))) && ((((var_1_10 * var_1_13) + var_1_8) > (var_1_2 / var_1_12)) ? (var_1_9 ? (var_1_11 == ((signed long int) var_1_2)) : 1) : (var_1_11 == ((signed long int) var_1_7)))) && (var_1_13 == ((signed long int) var_1_7)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=10, var_1_10=1, var_1_11=253, var_1_12=127, var_1_13=1, var_1_1=11, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=10, var_1_10=1, var_1_11=253, var_1_12=127, var_1_13=1, var_1_1=11, var_1_2=253, var_1_3=2, var_1_4=0, var_1_5=11, var_1_7=1, var_1_8=1, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 17, 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=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 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 05:18:19,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:18:22,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:22,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:18:22,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:22,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:22,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:22,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:22,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:22,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:22,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:22,736 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:22,737 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:22,737 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:22,739 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:22,739 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:22,740 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:22,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:22,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:22,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:18:22,742 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:18:22,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:22,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:22,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:22,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:22,745 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:18:22,745 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:18:22,746 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:18:22,746 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:18:22,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:22,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:22,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:22,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:18:22,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:22,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:22,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:22,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:22,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:22,750 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:18:22,751 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:18:22,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:22,752 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:22,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:22,753 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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 [2023-11-19 05:18:23,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:23,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:23,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:23,197 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:23,198 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:23,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i [2023-11-19 05:18:26,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:18:26,604 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:18:26,605 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i [2023-11-19 05:18:26,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data/23a5ad238/8488707c287146f3bde3e1a2ff44cabd/FLAG5702d3327 [2023-11-19 05:18:26,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/data/23a5ad238/8488707c287146f3bde3e1a2ff44cabd [2023-11-19 05:18:26,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:18:26,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:18:26,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:26,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:18:26,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:18:26,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:26" (1/1) ... [2023-11-19 05:18:26,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dae7336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:26, skipping insertion in model container [2023-11-19 05:18:26,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:26" (1/1) ... [2023-11-19 05:18:26,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:18:26,923 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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2023-11-19 05:18:26,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:27,020 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:18:27,045 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_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2023-11-19 05:18:27,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:27,108 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:18:27,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27 WrapperNode [2023-11-19 05:18:27,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:27,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:27,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:18:27,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:18:27,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,183 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-11-19 05:18:27,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:27,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:18:27,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:18:27,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:18:27,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:18:27,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:18:27,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:18:27,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:18:27,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (1/1) ... [2023-11-19 05:18:27,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:27,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:18:27,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:18:27,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:18:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:18:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:18:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:18:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:18:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:18:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:18:27,467 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:18:27,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:18:28,001 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:18:28,010 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:18:28,010 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:18:28,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:28 BoogieIcfgContainer [2023-11-19 05:18:28,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:18:28,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:18:28,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:18:28,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:18:28,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:26" (1/3) ... [2023-11-19 05:18:28,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bda45ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:28, skipping insertion in model container [2023-11-19 05:18:28,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:27" (2/3) ... [2023-11-19 05:18:28,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bda45ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:28, skipping insertion in model container [2023-11-19 05:18:28,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:28" (3/3) ... [2023-11-19 05:18:28,025 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-19.i [2023-11-19 05:18:28,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:18:28,046 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:18:28,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:18:28,117 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;@51ff2cf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:18:28,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:18:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:18:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 05:18:28,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:28,147 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:28,150 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:28,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:28,158 INFO L85 PathProgramCache]: Analyzing trace with hash 721810688, now seen corresponding path program 1 times [2023-11-19 05:18:28,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:18:28,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612194796] [2023-11-19 05:18:28,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:28,176 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 05:18:28,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:18:28,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 05:18:28,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 05:18:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:28,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:18:28,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:18:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-19 05:18:28,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:18:28,473 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:18:28,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612194796] [2023-11-19 05:18:28,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612194796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:28,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:28,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:18:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638072174] [2023-11-19 05:18:28,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:28,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:18:28,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:18:28,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:18:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:18:28,524 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:18:28,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:28,557 INFO L93 Difference]: Finished difference Result 99 states and 169 transitions. [2023-11-19 05:18:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:18:28,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-11-19 05:18:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:28,569 INFO L225 Difference]: With dead ends: 99 [2023-11-19 05:18:28,570 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 05:18:28,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 05:18:28,578 INFO L413 NwaCegarLoop]: 72 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, 72 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 05:18:28,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:18:28,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 05:18:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 05:18:28,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:18:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2023-11-19 05:18:28,628 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 108 [2023-11-19 05:18:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:28,629 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2023-11-19 05:18:28,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:18:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2023-11-19 05:18:28,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 05:18:28,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:28,633 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:28,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 05:18:28,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 05:18:28,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:28,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:28,841 INFO L85 PathProgramCache]: Analyzing trace with hash 976250942, now seen corresponding path program 1 times [2023-11-19 05:18:28,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:18:28,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526449902] [2023-11-19 05:18:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:28,842 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 05:18:28,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:18:28,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 05:18:28,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/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 05:18:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:29,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 05:18:29,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:18:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 313 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-19 05:18:31,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:18:32,378 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:18:32,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526449902] [2023-11-19 05:18:32,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526449902] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:18:32,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [538036153] [2023-11-19 05:18:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:32,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:18:32,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:18:32,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:18:32,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56a6d88-2b7f-4b2e-bcde-219cd0504e07/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:18:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:33,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 05:18:33,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:18:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 319 proven. 111 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-19 05:18:39,205 INFO L327 TraceCheckSpWp]: Computing backward predicates...