./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 6b220e86dad156c2e1b76a913a90a5ef63453f4f58713f18c7816f381ac66b62 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:20:18,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:20:18,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:20:18,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:20:18,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:20:18,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:20:18,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:20:18,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:20:18,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:20:18,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:20:18,656 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:20:18,657 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:20:18,657 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:20:18,658 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:20:18,659 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:20:18,660 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:20:18,660 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:20:18,661 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:20:18,662 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:20:18,663 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:20:18,663 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:20:18,664 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:20:18,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:20:18,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:20:18,667 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:20:18,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:20:18,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:20:18,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:20:18,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:20:18,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:20:18,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:20:18,671 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:20:18,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:20:18,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:20:18,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:20:18,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:20:18,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:18,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:20:18,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:20:18,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:20:18,676 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:20:18,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:20:18,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:20:18,677 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:20:18,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:20:18,678 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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b220e86dad156c2e1b76a913a90a5ef63453f4f58713f18c7816f381ac66b62 [2023-11-19 05:20:19,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:20:19,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:20:19,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:20:19,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:20:19,090 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:20:19,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i [2023-11-19 05:20:22,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:20:23,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:20:23,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i [2023-11-19 05:20:23,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data/f0c93cbd0/0269eeb91a1b4248a4a8010b3f1eeed1/FLAGd39e706a4 [2023-11-19 05:20:23,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data/f0c93cbd0/0269eeb91a1b4248a4a8010b3f1eeed1 [2023-11-19 05:20:23,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:20:23,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:20:23,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:20:23,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:20:23,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:20:23,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cc2ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23, skipping insertion in model container [2023-11-19 05:20:23,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:20:23,560 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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i[917,930] [2023-11-19 05:20:23,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:20:23,641 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:20:23,658 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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i[917,930] [2023-11-19 05:20:23,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:20:23,716 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:20:23,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23 WrapperNode [2023-11-19 05:20:23,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:20:23,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:20:23,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:20:23,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:20:23,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,791 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2023-11-19 05:20:23,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:20:23,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:20:23,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:20:23,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:20:23,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:20:23,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:20:23,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:20:23,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:20:23,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (1/1) ... [2023-11-19 05:20:23,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:23,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:20:23,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:20:23,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:20:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:20:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:20:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:20:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:20:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:20:23,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:20:24,133 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:20:24,143 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:20:24,602 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:20:24,777 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:20:24,777 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:20:24,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:24 BoogieIcfgContainer [2023-11-19 05:20:24,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:20:24,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:20:24,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:20:24,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:20:24,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:20:23" (1/3) ... [2023-11-19 05:20:24,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cd61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:20:24, skipping insertion in model container [2023-11-19 05:20:24,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:23" (2/3) ... [2023-11-19 05:20:24,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cd61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:20:24, skipping insertion in model container [2023-11-19 05:20:24,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:24" (3/3) ... [2023-11-19 05:20:24,797 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-80.i [2023-11-19 05:20:24,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:20:24,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:20:24,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:20:24,922 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;@59aeecb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:20:24,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:20:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 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 05:20:24,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 05:20:24,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:20:24,945 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, 1, 1, 1] [2023-11-19 05:20:24,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:20:24,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:20:24,957 INFO L85 PathProgramCache]: Analyzing trace with hash 443755324, now seen corresponding path program 1 times [2023-11-19 05:20:24,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:20:24,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349681553] [2023-11-19 05:20:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:20:24,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:20:25,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:20:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352584407] [2023-11-19 05:20:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:20:25,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:20:25,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:20:25,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:20:25,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:20:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:20:25,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:20:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:20:25,780 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:20:25,783 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:20:25,785 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:20:25,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:20:25,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:20:26,004 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:20:26,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:20:26,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:20:26 BoogieIcfgContainer [2023-11-19 05:20:26,122 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:20:26,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:20:26,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:20:26,123 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:20:26,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:24" (3/4) ... [2023-11-19 05:20:26,127 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:20:26,128 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:20:26,129 INFO L158 Benchmark]: Toolchain (without parser) took 2797.21ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 62.2MB in the end (delta: 81.1MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2023-11-19 05:20:26,131 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory was 93.8MB in the beginning and 93.8MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:20:26,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.35ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 130.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:20:26,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.35ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 127.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:20:26,133 INFO L158 Benchmark]: Boogie Preprocessor took 46.50ms. Allocated memory is still 176.2MB. Free memory was 127.2MB in the beginning and 126.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:20:26,134 INFO L158 Benchmark]: RCFGBuilder took 943.69ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 97.8MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 05:20:26,135 INFO L158 Benchmark]: TraceAbstraction took 1335.15ms. Allocated memory is still 176.2MB. Free memory was 97.1MB in the beginning and 62.7MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 05:20:26,136 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 176.2MB. Free memory was 62.7MB in the beginning and 62.2MB in the end (delta: 474.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:20:26,141 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 119.5MB. Free memory was 93.8MB in the beginning and 93.8MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.35ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 130.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.35ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 127.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.50ms. Allocated memory is still 176.2MB. Free memory was 127.2MB in the beginning and 126.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 943.69ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 97.8MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1335.15ms. Allocated memory is still 176.2MB. Free memory was 97.1MB in the beginning and 62.7MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 176.2MB. Free memory was 62.7MB in the beginning and 62.2MB in the end (delta: 474.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 256; [L23] signed long int var_1_8 = 128; [L24] signed short int var_1_9 = -1; [L25] signed short int var_1_10 = 1; [L26] signed char var_1_12 = 0; [L27] unsigned char var_1_13 = 1; [L28] signed char var_1_14 = 2; [L29] double var_1_15 = 1.8; [L30] double var_1_16 = 25.8; [L31] double var_1_17 = 5.5; [L32] double var_1_18 = 4.3; [L33] double var_1_19 = 500.7; [L34] double var_1_20 = 127.5; [L35] double var_1_21 = 1.5; [L36] double var_1_22 = 99.84; [L37] unsigned short int var_1_23 = 4; [L38] signed char var_1_24 = -64; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L62] var_1_8 = __VERIFIER_nondet_long() [L63] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L64] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L65] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L66] var_1_9 = __VERIFIER_nondet_short() [L67] CALL assume_abort_if_not(var_1_9 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_9 >= -1) VAL [isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L68] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=1, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L69] var_1_10 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L71] CALL assume_abort_if_not(var_1_10 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_10 <= 32766) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=1, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L72] var_1_13 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L74] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=2, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L75] var_1_14 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L77] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=129/5, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L78] var_1_16 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=11/2, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L80] var_1_17 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=43/10, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L82] var_1_18 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5007/10, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L84] var_1_19 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=255/2, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L86] var_1_20 = __VERIFIER_nondet_double() [L87] CALL assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=6, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=6, var_1_21=3/2, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L88] var_1_21 = __VERIFIER_nondet_double() [L89] CALL assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=6, var_1_21=7, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=9/5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=6, var_1_21=7, var_1_22=2496/25, var_1_23=4, var_1_24=-64, var_1_8=-4, var_1_9=-1] [L102] RET updateVariables() [L103] CALL step() [L42] var_1_22 = var_1_19 [L43] var_1_23 = var_1_10 [L44] var_1_24 = var_1_14 [L45] unsigned char stepLocal_0 = var_1_23 <= var_1_24; [L46] COND FALSE !(var_1_13 || stepLocal_0) [L49] var_1_12 = var_1_14 [L51] signed short int stepLocal_1 = var_1_10; [L52] COND FALSE !(stepLocal_1 <= (var_1_23 / var_1_8)) [L55] var_1_15 = (var_1_20 - var_1_21) [L57] COND FALSE !((((((var_1_23 - var_1_23)) > (var_1_12)) ? ((var_1_23 - var_1_23)) : (var_1_12))) <= (((((var_1_23 - var_1_23)) < ((var_1_24 % var_1_8))) ? ((var_1_23 - var_1_23)) : ((var_1_24 % var_1_8))))) [L103] RET step() [L104] CALL, EXPR property() [L94-L95] return (((((((((((var_1_23 - var_1_23)) > (var_1_12)) ? ((var_1_23 - var_1_23)) : (var_1_12))) <= (((((var_1_23 - var_1_23)) < ((var_1_24 % var_1_8))) ? ((var_1_23 - var_1_23)) : ((var_1_24 % var_1_8))))) ? (var_1_1 == ((signed short int) (((((var_1_9 - var_1_10)) < (var_1_12)) ? ((var_1_9 - var_1_10)) : (var_1_12))))) : 1) && ((var_1_13 || (var_1_23 <= var_1_24)) ? (var_1_12 == ((signed char) ((((1 - var_1_14) < 0 ) ? -(1 - var_1_14) : (1 - var_1_14))))) : (var_1_12 == ((signed char) var_1_14)))) && ((var_1_10 <= (var_1_23 / var_1_8)) ? (var_1_15 == ((double) ((((((((((((var_1_16) < (var_1_17)) ? (var_1_16) : (var_1_17)))) > (var_1_18)) ? (((((var_1_16) < (var_1_17)) ? (var_1_16) : (var_1_17)))) : (var_1_18)))) < (((((3.6) > (var_1_19)) ? (3.6) : (var_1_19))))) ? (((((((((var_1_16) < (var_1_17)) ? (var_1_16) : (var_1_17)))) > (var_1_18)) ? (((((var_1_16) < (var_1_17)) ? (var_1_16) : (var_1_17)))) : (var_1_18)))) : (((((3.6) > (var_1_19)) ? (3.6) : (var_1_19)))))))) : (var_1_15 == ((double) (var_1_20 - var_1_21))))) && (var_1_22 == ((double) var_1_19))) && (var_1_23 == ((unsigned short int) var_1_10))) && (var_1_24 == ((signed char) var_1_14)) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=6, var_1_21=7, var_1_22=5, var_1_23=2, var_1_24=1, var_1_8=-4, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=5, var_1_1=256, var_1_20=6, var_1_21=7, var_1_22=5, var_1_23=2, var_1_24=1, var_1_8=-4, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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=37occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 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 05:20:26,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 6b220e86dad156c2e1b76a913a90a5ef63453f4f58713f18c7816f381ac66b62 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:20:29,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:20:29,647 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:20:29,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:20:29,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:20:29,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:20:29,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:20:29,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:20:29,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:20:29,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:20:29,725 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:20:29,726 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:20:29,727 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:20:29,729 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:20:29,729 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:20:29,730 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:20:29,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:20:29,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:20:29,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:20:29,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:20:29,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:20:29,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:20:29,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:20:29,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:20:29,736 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:20:29,737 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:20:29,737 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:20:29,738 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:20:29,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:20:29,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:20:29,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:20:29,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:20:29,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:20:29,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:29,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:20:29,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:20:29,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:20:29,743 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:20:29,743 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:20:29,745 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:20:29,745 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:20:29,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:20:29,746 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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b220e86dad156c2e1b76a913a90a5ef63453f4f58713f18c7816f381ac66b62 [2023-11-19 05:20:30,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:20:30,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:20:30,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:20:30,202 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:20:30,202 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:20:30,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i [2023-11-19 05:20:33,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:20:33,785 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:20:33,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i [2023-11-19 05:20:33,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data/00314227f/59c4517caeb541668df7d81e3699feb1/FLAGc09cfdfa0 [2023-11-19 05:20:33,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/data/00314227f/59c4517caeb541668df7d81e3699feb1 [2023-11-19 05:20:33,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:20:33,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:20:33,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:20:33,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:20:33,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:20:33,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:20:33" (1/1) ... [2023-11-19 05:20:33,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2bbd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:33, skipping insertion in model container [2023-11-19 05:20:33,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:20:33" (1/1) ... [2023-11-19 05:20:33,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:20:34,051 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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i[917,930] [2023-11-19 05:20:34,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:20:34,153 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:20:34,166 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_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-80.i[917,930] [2023-11-19 05:20:34,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:20:34,208 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:20:34,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34 WrapperNode [2023-11-19 05:20:34,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:20:34,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:20:34,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:20:34,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:20:34,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,262 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-19 05:20:34,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:20:34,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:20:34,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:20:34,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:20:34,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:20:34,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:20:34,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:20:34,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:20:34,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (1/1) ... [2023-11-19 05:20:34,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:34,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:20:34,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:20:34,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:20:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:20:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:20:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:20:34,499 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:20:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:20:34,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:20:34,658 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:20:34,662 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:20:36,199 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:20:36,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:20:36,209 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:20:36,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:36 BoogieIcfgContainer [2023-11-19 05:20:36,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:20:36,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:20:36,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:20:36,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:20:36,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:20:33" (1/3) ... [2023-11-19 05:20:36,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a739ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:20:36, skipping insertion in model container [2023-11-19 05:20:36,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:34" (2/3) ... [2023-11-19 05:20:36,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a739ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:20:36, skipping insertion in model container [2023-11-19 05:20:36,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:36" (3/3) ... [2023-11-19 05:20:36,226 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-80.i [2023-11-19 05:20:36,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:20:36,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:20:36,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:20:36,347 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;@13077595, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:20:36,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:20:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 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 05:20:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 05:20:36,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:20:36,382 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, 1] [2023-11-19 05:20:36,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:20:36,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:20:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash -241923401, now seen corresponding path program 1 times [2023-11-19 05:20:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:20:36,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693896365] [2023-11-19 05:20:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:20:36,417 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 05:20:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:20:36,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 05:20:36,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 05:20:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:20:37,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:20:37,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:20:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-19 05:20:37,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:20:37,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:20:37,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693896365] [2023-11-19 05:20:37,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693896365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:20:37,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:20:37,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:20:37,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688797] [2023-11-19 05:20:37,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:20:37,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:20:37,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:20:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:20:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:20:37,231 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 05:20:37,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:20:37,270 INFO L93 Difference]: Finished difference Result 95 states and 157 transitions. [2023-11-19 05:20:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:20:37,273 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, (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 109 [2023-11-19 05:20:37,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:20:37,282 INFO L225 Difference]: With dead ends: 95 [2023-11-19 05:20:37,282 INFO L226 Difference]: Without dead ends: 47 [2023-11-19 05:20:37,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 05:20:37,292 INFO L413 NwaCegarLoop]: 66 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, 66 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 05:20:37,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:20:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-19 05:20:37,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-19 05:20:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 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 05:20:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2023-11-19 05:20:37,369 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 109 [2023-11-19 05:20:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:20:37,370 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2023-11-19 05:20:37,370 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, (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 05:20:37,370 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2023-11-19 05:20:37,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 05:20:37,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:20:37,374 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, 1] [2023-11-19 05:20:37,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 05:20:37,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 05:20:37,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:20:37,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:20:37,580 INFO L85 PathProgramCache]: Analyzing trace with hash 985876905, now seen corresponding path program 1 times [2023-11-19 05:20:37,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:20:37,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60194899] [2023-11-19 05:20:37,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:20:37,583 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 05:20:37,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:20:37,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 05:20:37,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1730e17-cbf4-4d3b-95ee-b6c22a0a86b9/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 05:20:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:20:38,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 05:20:38,094 INFO L285 TraceCheckSpWp]: Computing forward predicates...