./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5 --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 e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:58:33,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:58:33,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 18:58:33,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:58:33,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:58:33,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:58:33,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:58:33,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:58:33,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:58:33,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:58:33,884 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:58:33,885 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:58:33,885 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:58:33,886 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:58:33,886 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:58:33,887 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:58:33,888 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:58:33,888 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:58:33,889 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:58:33,889 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:58:33,890 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:58:33,891 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:58:33,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:58:33,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:58:33,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:58:33,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:58:33,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:58:33,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:58:33,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:58:33,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:58:33,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:58:33,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:58:33,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:58:33,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:58:33,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:58:33,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:58:33,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:58:33,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:58:33,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:58:33,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:58:33,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:58:33,902 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:58:33,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:58:33,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:58:33,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:58:33,904 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:58:33,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:58:33,905 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_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 [2023-11-21 18:58:34,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:58:34,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:58:34,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:58:34,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:58:34,218 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:58:34,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-21 18:58:37,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:58:37,510 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:58:37,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-21 18:58:37,526 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data/7fbbc2fc8/729aeb7a71f04bf98270fc4b3f3ffbf1/FLAG930671707 [2023-11-21 18:58:37,545 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data/7fbbc2fc8/729aeb7a71f04bf98270fc4b3f3ffbf1 [2023-11-21 18:58:37,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:58:37,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:58:37,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:58:37,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:58:37,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:58:37,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccfc34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37, skipping insertion in model container [2023-11-21 18:58:37,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:58:37,815 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_eb241f64-d21c-4956-afd7-85e7d9908855/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-21 18:58:37,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:58:37,871 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:58:37,883 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_eb241f64-d21c-4956-afd7-85e7d9908855/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-21 18:58:37,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:58:37,922 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:58:37,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37 WrapperNode [2023-11-21 18:58:37,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:58:37,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:58:37,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:58:37,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:58:37,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,975 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-21 18:58:37,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:58:37,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:58:37,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:58:37,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:58:37,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:37,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:38,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:38,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:38,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:38,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:58:38,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:58:38,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:58:38,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:58:38,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (1/1) ... [2023-11-21 18:58:38,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:58:38,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:58:38,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:58:38,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:58:38,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:58:38,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:58:38,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:58:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:58:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:58:38,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:58:38,188 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:58:38,190 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:58:38,521 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:58:38,737 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:58:38,741 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:58:38,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:38 BoogieIcfgContainer [2023-11-21 18:58:38,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:58:38,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:58:38,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:58:38,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:58:38,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:58:37" (1/3) ... [2023-11-21 18:58:38,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60567dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:58:38, skipping insertion in model container [2023-11-21 18:58:38,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:37" (2/3) ... [2023-11-21 18:58:38,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60567dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:58:38, skipping insertion in model container [2023-11-21 18:58:38,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:38" (3/3) ... [2023-11-21 18:58:38,757 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-21 18:58:38,774 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:58:38,774 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 18:58:38,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:58:38,828 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;@569bd167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:58:38,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 18:58:38,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 18:58:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 18:58:38,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:38,844 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:38,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 18:58:38,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:38,851 INFO L85 PathProgramCache]: Analyzing trace with hash -165231664, now seen corresponding path program 1 times [2023-11-21 18:58:38,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:58:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800643047] [2023-11-21 18:58:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:38,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:58:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:58:39,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:58:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:58:39,444 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 18:58:39,449 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 18:58:39,450 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 18:58:39,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 18:58:39,459 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 18:58:39,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 18:58:39,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 06:58:39 BoogieIcfgContainer [2023-11-21 18:58:39,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 18:58:39,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:58:39,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:58:39,538 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:58:39,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:38" (3/4) ... [2023-11-21 18:58:39,544 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:58:39,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:58:39,546 INFO L158 Benchmark]: Toolchain (without parser) took 1990.08ms. Allocated memory is still 134.2MB. Free memory was 92.1MB in the beginning and 76.8MB in the end (delta: 15.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,547 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:58:39,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.50ms. Allocated memory is still 134.2MB. Free memory was 91.6MB in the beginning and 79.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.94ms. Allocated memory is still 134.2MB. Free memory was 79.5MB in the beginning and 77.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,549 INFO L158 Benchmark]: Boogie Preprocessor took 33.97ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 75.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,550 INFO L158 Benchmark]: RCFGBuilder took 732.14ms. Allocated memory is still 134.2MB. Free memory was 75.9MB in the beginning and 105.3MB in the end (delta: -29.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,551 INFO L158 Benchmark]: TraceAbstraction took 789.72ms. Allocated memory is still 134.2MB. Free memory was 104.2MB in the beginning and 77.7MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,552 INFO L158 Benchmark]: Witness Printer took 7.43ms. Allocated memory is still 134.2MB. Free memory was 77.7MB in the beginning and 76.8MB in the end (delta: 863.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:58:39,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.50ms. Allocated memory is still 134.2MB. Free memory was 91.6MB in the beginning and 79.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.94ms. Allocated memory is still 134.2MB. Free memory was 79.5MB in the beginning and 77.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.97ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 75.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.14ms. Allocated memory is still 134.2MB. Free memory was 75.9MB in the beginning and 105.3MB in the end (delta: -29.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * TraceAbstraction took 789.72ms. Allocated memory is still 134.2MB. Free memory was 104.2MB in the beginning and 77.7MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 7.43ms. Allocated memory is still 134.2MB. Free memory was 77.7MB in the beginning and 76.8MB in the end (delta: 863.6kB). Peak memory consumption was 2.1MB. 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 to_int at line 59, overapproximation of someBinaryFLOATComparisonOperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -200; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] signed long int var_1_9 = 100; [L26] signed long int var_1_10 = 4; [L27] signed long int var_1_11 = 128; [L28] signed long int var_1_12 = 128; [L29] signed long int var_1_13 = 0; [L30] signed long int var_1_14 = 127; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 16; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=100] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=100] [L67] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=1, var_1_9=100] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=1, var_1_9=100] [L68] var_1_3 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L70] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L71] var_1_10 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L73] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L74] var_1_11 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L76] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L77] var_1_13 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L79] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L80] var_1_14 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L82] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L83] var_1_16 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L85] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_10=4, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=100] [L98] RET updateVariables() [L99] CALL step() [L36] COND FALSE !(0.8f > (- var_1_10)) [L39] unsigned char stepLocal_1 = var_1_15 > var_1_15; [L40] unsigned char stepLocal_0 = var_1_3; [L41] COND FALSE !(var_1_2 && stepLocal_0) [L48] COND FALSE !(\read(var_1_2)) [L51] COND TRUE var_1_1 < var_1_15 [L52] var_1_9 = ((((var_1_11) > (var_1_10)) ? (var_1_11) : (var_1_10))) [L57] signed long int stepLocal_2 = var_1_1; [L58] COND FALSE !(stepLocal_2 <= ((((8u) < 0 ) ? -(8u) : (8u)))) [L61] var_1_12 = ((var_1_13 - var_1_14) - var_1_11) [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return ((((var_1_2 && var_1_3) ? ((var_1_2 && (var_1_15 > var_1_15)) ? (var_1_1 == ((signed long int) (var_1_15 - var_1_15))) : (var_1_1 == ((signed long int) ((var_1_15 + 5) - var_1_15)))) : 1) && (var_1_2 ? (var_1_9 == ((signed long int) (var_1_10 - var_1_11))) : ((var_1_1 < var_1_15) ? (var_1_9 == ((signed long int) ((((var_1_11) > (var_1_10)) ? (var_1_11) : (var_1_10))))) : (var_1_9 == ((signed long int) var_1_10))))) && ((var_1_1 <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (var_1_12 == ((signed long int) (var_1_10 - 99.5))) : (var_1_12 == ((signed long int) ((var_1_13 - var_1_14) - var_1_11))))) && ((0.8f > (- var_1_10)) ? (var_1_15 == ((unsigned char) var_1_16)) : 1) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=0, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=4, var_1_11=4, var_1_12=0, var_1_13=2147483647, var_1_14=2147483643, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=0, var_1_3=0, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 14, 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=30occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 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 [2023-11-21 18:58:39,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/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_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5 --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 e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:58:42,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:58:42,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 18:58:42,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:58:42,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:58:42,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:58:42,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:58:42,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:58:42,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:58:42,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:58:42,498 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:58:42,498 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:58:42,499 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:58:42,501 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:58:42,501 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:58:42,502 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:58:42,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:58:42,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:58:42,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:58:42,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:58:42,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:58:42,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:58:42,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:58:42,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:58:42,508 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:58:42,508 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:58:42,509 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:58:42,509 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:58:42,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:58:42,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:58:42,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:58:42,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 18:58:42,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:58:42,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:58:42,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:58:42,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:58:42,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:58:42,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:58:42,515 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:58:42,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:58:42,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:58:42,517 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:58:42,517 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:58:42,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:58:42,518 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_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 [2023-11-21 18:58:42,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:58:42,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:58:43,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:58:43,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:58:43,005 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:58:43,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-21 18:58:46,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:58:46,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:58:46,508 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-21 18:58:46,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data/a1ec7a506/cd75ee1284894c06b979b5f0528cafca/FLAG36ba6504b [2023-11-21 18:58:46,537 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/data/a1ec7a506/cd75ee1284894c06b979b5f0528cafca [2023-11-21 18:58:46,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:58:46,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:58:46,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:58:46,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:58:46,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:58:46,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692d6869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46, skipping insertion in model container [2023-11-21 18:58:46,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,600 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:58:46,792 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_eb241f64-d21c-4956-afd7-85e7d9908855/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-21 18:58:46,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:58:46,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:58:46,873 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_eb241f64-d21c-4956-afd7-85e7d9908855/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-21 18:58:46,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:58:46,919 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:58:46,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46 WrapperNode [2023-11-21 18:58:46,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:58:46,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:58:46,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:58:46,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:58:46,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,978 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2023-11-21 18:58:46,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:58:46,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:58:46,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:58:46,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:58:46,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:46,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:47,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:47,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:47,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:47,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:47,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:58:47,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:58:47,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:58:47,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:58:47,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (1/1) ... [2023-11-21 18:58:47,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:58:47,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:58:47,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:58:47,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:58:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:58:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:58:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:58:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:58:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:58:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:58:47,266 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:58:47,268 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:58:49,803 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:58:49,967 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:58:49,967 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:58:49,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:49 BoogieIcfgContainer [2023-11-21 18:58:49,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:58:49,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:58:49,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:58:49,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:58:49,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:58:46" (1/3) ... [2023-11-21 18:58:49,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c159fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:58:49, skipping insertion in model container [2023-11-21 18:58:49,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:46" (2/3) ... [2023-11-21 18:58:49,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c159fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:58:49, skipping insertion in model container [2023-11-21 18:58:49,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:49" (3/3) ... [2023-11-21 18:58:49,979 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-21 18:58:50,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:58:50,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 18:58:50,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:58:50,074 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;@30599477, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:58:50,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 18:58:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 18:58:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 18:58:50,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:50,087 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:50,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 18:58:50,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:50,094 INFO L85 PathProgramCache]: Analyzing trace with hash -165231664, now seen corresponding path program 1 times [2023-11-21 18:58:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:58:50,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103996793] [2023-11-21 18:58:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:50,107 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 [2023-11-21 18:58:50,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:58:50,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 18:58:50,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 18:58:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:58:50,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:58:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:58:50,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-21 18:58:50,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [859418591] [2023-11-21 18:58:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:50,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:58:50,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/cvc4 [2023-11-21 18:58:50,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:58:50,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb241f64-d21c-4956-afd7-85e7d9908855/bin/utaipan-verify-QoSU8krkJ5/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:58:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:50,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 18:58:50,987 INFO L285 TraceCheckSpWp]: Computing forward predicates...