./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh --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 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:05:25,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:05:25,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:05:25,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:05:25,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:05:25,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:05:25,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:05:25,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:05:25,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:05:25,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:05:25,172 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:05:25,173 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:05:25,174 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:05:25,174 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:05:25,175 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:05:25,175 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:05:25,176 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:05:25,176 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:05:25,177 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:05:25,177 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:05:25,178 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:05:25,178 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:05:25,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:05:25,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:05:25,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:05:25,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:05:25,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:05:25,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:05:25,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:05:25,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:05:25,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:05:25,183 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:05:25,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:05:25,183 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:05:25,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:05:25,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:05:25,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:05:25,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:05:25,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:05:25,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:05:25,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:05:25,185 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:05:25,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:05:25,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:05:25,186 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:05:25,186 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:05:25,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:05:25,186 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 [2023-12-02 18:05:25,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:05:25,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:05:25,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:05:25,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:05:25,432 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:05:25,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2023-12-02 18:05:28,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:05:28,383 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:05:28,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2023-12-02 18:05:28,394 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data/64a6777f4/b8ee6a267ad3421fb6c82b64efe19b79/FLAG961d34cfc [2023-12-02 18:05:28,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data/64a6777f4/b8ee6a267ad3421fb6c82b64efe19b79 [2023-12-02 18:05:28,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:05:28,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:05:28,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:05:28,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:05:28,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:05:28,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c36d28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28, skipping insertion in model container [2023-12-02 18:05:28,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:05:28,569 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i[915,928] [2023-12-02 18:05:28,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:05:28,636 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:05:28,648 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i[915,928] [2023-12-02 18:05:28,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:05:28,691 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:05:28,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28 WrapperNode [2023-12-02 18:05:28,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:05:28,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:05:28,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:05:28,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:05:28,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,743 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-12-02 18:05:28,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:05:28,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:05:28,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:05:28,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:05:28,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:05:28,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:05:28,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:05:28,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:05:28,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (1/1) ... [2023-12-02 18:05:28,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:05:28,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:05:28,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:05:28,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:05:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:05:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:05:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:05:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:05:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:05:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:05:28,940 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:05:28,942 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:05:29,206 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:05:29,384 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:05:29,384 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:05:29,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:29 BoogieIcfgContainer [2023-12-02 18:05:29,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:05:29,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:05:29,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:05:29,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:05:29,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:05:28" (1/3) ... [2023-12-02 18:05:29,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a67ae07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:29, skipping insertion in model container [2023-12-02 18:05:29,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:28" (2/3) ... [2023-12-02 18:05:29,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a67ae07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:29, skipping insertion in model container [2023-12-02 18:05:29,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:29" (3/3) ... [2023-12-02 18:05:29,395 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-70.i [2023-12-02 18:05:29,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:05:29,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:05:29,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:05:29,461 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;@479ed0f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:05:29,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:05:29,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 18:05:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 18:05:29,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:29,472 INFO L195 NwaCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:29,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:05:29,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1049502569, now seen corresponding path program 1 times [2023-12-02 18:05:29,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:05:29,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498489256] [2023-12-02 18:05:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:29,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:05:29,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 18:05:29,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942349602] [2023-12-02 18:05:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:29,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:05:29,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:05:29,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:05:29,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:05:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:05:29,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:05:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:05:30,039 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:05:30,041 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:05:30,042 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:05:30,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:05:30,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 18:05:30,247 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:05:30,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:05:30,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:05:30 BoogieIcfgContainer [2023-12-02 18:05:30,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:05:30,304 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:05:30,304 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:05:30,304 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:05:30,304 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:29" (3/4) ... [2023-12-02 18:05:30,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:05:30,308 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:05:30,309 INFO L158 Benchmark]: Toolchain (without parser) took 1898.42ms. Allocated memory is still 178.3MB. Free memory was 146.2MB in the beginning and 124.7MB in the end (delta: 21.5MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-12-02 18:05:30,309 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:30,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.66ms. Allocated memory is still 178.3MB. Free memory was 146.2MB in the beginning and 132.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 18:05:30,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.40ms. Allocated memory is still 178.3MB. Free memory was 132.9MB in the beginning and 129.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:30,311 INFO L158 Benchmark]: Boogie Preprocessor took 35.54ms. Allocated memory is still 178.3MB. Free memory was 129.2MB in the beginning and 127.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:05:30,312 INFO L158 Benchmark]: RCFGBuilder took 604.95ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 90.9MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 18:05:30,312 INFO L158 Benchmark]: TraceAbstraction took 914.67ms. Allocated memory is still 178.3MB. Free memory was 90.3MB in the beginning and 124.7MB in the end (delta: -34.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:30,312 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 178.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:05:30,315 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.66ms. Allocated memory is still 178.3MB. Free memory was 146.2MB in the beginning and 132.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.40ms. Allocated memory is still 178.3MB. Free memory was 132.9MB in the beginning and 129.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.54ms. Allocated memory is still 178.3MB. Free memory was 129.2MB in the beginning and 127.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.95ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 90.9MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 914.67ms. Allocated memory is still 178.3MB. Free memory was 90.3MB in the beginning and 124.7MB in the end (delta: -34.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 178.3MB. Free memory is still 124.7MB. 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 50, overapproximation of someBinaryArithmeticDOUBLEoperation at line 66. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.05; [L23] double var_1_6 = 0.0; [L24] double var_1_7 = 49.5; [L25] double var_1_8 = 16.75; [L26] unsigned short int var_1_9 = 1; [L27] unsigned long int var_1_11 = 8; [L28] unsigned char var_1_12 = 0; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_14 = 32; [L31] unsigned char var_1_15 = 50; [L32] unsigned char var_1_16 = 8; [L33] unsigned char var_1_17 = 32; [L34] unsigned long int var_1_18 = 2; [L35] unsigned long int var_1_19 = 3876014737; [L36] unsigned char var_1_20 = 0; [L37] double last_1_var_1_1 = 5.05; [L38] unsigned short int last_1_var_1_9 = 1; [L39] unsigned long int last_1_var_1_11 = 8; [L40] unsigned char last_1_var_1_14 = 32; [L41] unsigned char last_1_var_1_20 = 0; [L113] isInitial = 1 [L114] FCALL initially() [L115] int k_loop; [L116] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_6=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L116] COND TRUE k_loop < 1 [L117] CALL updateLastVariables() [L102] last_1_var_1_1 = var_1_1 [L103] last_1_var_1_9 = var_1_9 [L104] last_1_var_1_11 = var_1_11 [L105] last_1_var_1_14 = var_1_14 [L106] last_1_var_1_20 = var_1_20 [L117] RET updateLastVariables() [L118] CALL updateVariables() [L79] var_1_6 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_6 >= 2305843.009213691390e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_6 >= 2305843.009213691390e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L81] var_1_7 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 2305843.009213691390e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_8=67/4, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 2305843.009213691390e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_8=67/4, var_1_9=1] [L83] var_1_8 = __VERIFIER_nondet_double() [L84] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L85] var_1_13 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L88] var_1_15 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L91] var_1_16 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L93] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L94] var_1_17 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L96] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_9=1] [L97] var_1_19 = __VERIFIER_nondet_ulong() [L98] CALL assume_abort_if_not(var_1_19 >= 3221225470) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=4294967272, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_19 >= 3221225470) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=4294967272, var_1_1=101/20, var_1_20=0, var_1_9=1] [L99] CALL assume_abort_if_not(var_1_19 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=4294967272, var_1_1=101/20, var_1_20=0, var_1_9=1] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_19 <= 4294967294) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=2, var_1_19=4294967272, var_1_1=101/20, var_1_20=0, var_1_9=1] [L118] RET updateVariables() [L119] CALL step() [L45] COND TRUE \read(var_1_13) [L46] var_1_18 = ((var_1_19 - last_1_var_1_9) - last_1_var_1_11) [L50] COND TRUE var_1_6 > ((((var_1_8) < (last_1_var_1_1)) ? (var_1_8) : (last_1_var_1_1))) [L51] COND TRUE ! ((last_1_var_1_1 == var_1_7) && (last_1_var_1_20 || last_1_var_1_20)) [L52] COND TRUE ! (var_1_6 <= var_1_7) [L53] var_1_9 = ((((last_1_var_1_14) < (last_1_var_1_14)) ? (last_1_var_1_14) : (last_1_var_1_14))) [L59] COND TRUE (8 - 64) <= (var_1_9 - var_1_9) [L60] var_1_14 = (((((var_1_15 + var_1_16)) < (var_1_17)) ? ((var_1_15 + var_1_16)) : (var_1_17))) [L64] signed long int stepLocal_0 = - ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))); [L65] COND FALSE !(var_1_18 >= stepLocal_0) [L68] var_1_1 = var_1_7 [L70] COND TRUE (var_1_14 / var_1_19) <= ((((var_1_18) < (var_1_14)) ? (var_1_18) : (var_1_14))) [L71] var_1_20 = var_1_13 [L73] COND TRUE \read(var_1_20) [L74] var_1_12 = var_1_13 [L76] var_1_11 = (var_1_9 + (((((var_1_18) < (var_1_9)) ? (var_1_18) : (var_1_9))) + 2u)) [L119] RET step() [L120] CALL, EXPR property() [L109-L110] return (((((((var_1_18 >= (- ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))))) ? (var_1_1 == ((double) (((var_1_6 - var_1_7) - ((((64.75) > (128.725)) ? (64.75) : (128.725)))) + var_1_8))) : (var_1_1 == ((double) var_1_7))) && ((var_1_6 > ((((var_1_8) < (last_1_var_1_1)) ? (var_1_8) : (last_1_var_1_1)))) ? ((! ((last_1_var_1_1 == var_1_7) && (last_1_var_1_20 || last_1_var_1_20))) ? ((! (var_1_6 <= var_1_7)) ? (var_1_9 == ((unsigned short int) ((((last_1_var_1_14) < (last_1_var_1_14)) ? (last_1_var_1_14) : (last_1_var_1_14))))) : 1) : (var_1_9 == ((unsigned short int) last_1_var_1_14))) : 1)) && (var_1_11 == ((unsigned long int) (var_1_9 + (((((var_1_18) < (var_1_9)) ? (var_1_18) : (var_1_9))) + 2u))))) && (var_1_20 ? (var_1_12 == ((unsigned char) var_1_13)) : 1)) && (((8 - 64) <= (var_1_9 - var_1_9)) ? (var_1_14 == ((unsigned char) (((((var_1_15 + var_1_16)) < (var_1_17)) ? ((var_1_15 + var_1_16)) : (var_1_17))))) : (var_1_14 == ((unsigned char) var_1_17)))) && (var_1_13 ? (var_1_18 == ((unsigned long int) ((var_1_19 - last_1_var_1_9) - last_1_var_1_11))) : (var_1_18 == ((unsigned long int) (((((var_1_19 - var_1_17)) > (var_1_15)) ? ((var_1_19 - var_1_17)) : (var_1_15))))))) && (((var_1_14 / var_1_19) <= ((((var_1_18) < (var_1_14)) ? (var_1_18) : (var_1_14)))) ? (var_1_20 == ((unsigned char) var_1_13)) : 1) ; [L120] RET, EXPR property() [L120] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=66, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=4294967263, var_1_19=4294967272, var_1_1=2, var_1_20=1, var_1_7=2, var_1_9=32] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=66, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=0, var_1_18=4294967263, var_1_19=4294967272, var_1_1=2, var_1_20=1, var_1_7=2, var_1_9=32] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 13, 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 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 [2023-12-02 18:05:30,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh --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 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:05:32,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:05:32,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:05:32,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:05:32,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:05:32,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:05:32,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:05:32,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:05:32,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:05:32,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:05:32,341 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:05:32,341 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:05:32,342 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:05:32,342 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:05:32,343 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:05:32,343 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:05:32,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:05:32,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:05:32,345 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:05:32,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:05:32,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:05:32,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:05:32,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:05:32,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:05:32,348 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:05:32,348 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:05:32,349 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:05:32,349 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:05:32,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:05:32,350 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:05:32,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:05:32,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:05:32,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:05:32,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:05:32,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:05:32,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:05:32,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:05:32,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:05:32,353 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:05:32,353 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:05:32,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:05:32,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:05:32,354 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:05:32,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:05:32,354 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13cde4b32ba56cbf3417fbd3d3edc8641f523883922a409d107d73798b0beac0 [2023-12-02 18:05:32,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:05:32,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:05:32,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:05:32,661 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:05:32,661 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:05:32,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2023-12-02 18:05:35,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:05:35,676 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:05:35,677 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i [2023-12-02 18:05:35,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data/ae8dcbb23/e900f6bb4edf42798d718d165f763401/FLAGf37192cea [2023-12-02 18:05:35,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/data/ae8dcbb23/e900f6bb4edf42798d718d165f763401 [2023-12-02 18:05:35,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:05:35,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:05:35,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:05:35,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:05:35,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:05:35,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:35,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a207536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35, skipping insertion in model container [2023-12-02 18:05:35,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:35,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:05:35,860 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i[915,928] [2023-12-02 18:05:35,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:05:35,926 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:05:35,937 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_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i[915,928] [2023-12-02 18:05:35,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:05:35,982 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:05:35,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35 WrapperNode [2023-12-02 18:05:35,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:05:35,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:05:35,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:05:35,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:05:35,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,030 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-12-02 18:05:36,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:05:36,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:05:36,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:05:36,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:05:36,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:05:36,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:05:36,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:05:36,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:05:36,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (1/1) ... [2023-12-02 18:05:36,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:05:36,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:05:36,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:05:36,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:05:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:05:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:05:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:05:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:05:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:05:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:05:36,229 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:05:36,231 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:05:40,546 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:05:40,610 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:05:40,610 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:05:40,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:40 BoogieIcfgContainer [2023-12-02 18:05:40,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:05:40,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:05:40,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:05:40,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:05:40,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:05:35" (1/3) ... [2023-12-02 18:05:40,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f24a607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:40, skipping insertion in model container [2023-12-02 18:05:40,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:35" (2/3) ... [2023-12-02 18:05:40,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f24a607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:40, skipping insertion in model container [2023-12-02 18:05:40,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:40" (3/3) ... [2023-12-02 18:05:40,620 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-70.i [2023-12-02 18:05:40,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:05:40,639 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:05:40,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:05:40,694 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;@705c94f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:05:40,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:05:40,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 18:05:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 18:05:40,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:40,711 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:40,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:05:40,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:40,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1858714461, now seen corresponding path program 1 times [2023-12-02 18:05:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:40,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679465143] [2023-12-02 18:05:40,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:40,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:05:40,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:40,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:05:40,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:05:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:41,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:05:41,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-02 18:05:41,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:05:41,160 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679465143] [2023-12-02 18:05:41,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679465143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:05:41,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:05:41,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:05:41,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35651323] [2023-12-02 18:05:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:05:41,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:05:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:41,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:05:41,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:05:41,199 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 18:05:43,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:05:43,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:05:43,356 INFO L93 Difference]: Finished difference Result 85 states and 144 transitions. [2023-12-02 18:05:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:05:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2023-12-02 18:05:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:05:43,366 INFO L225 Difference]: With dead ends: 85 [2023-12-02 18:05:43,366 INFO L226 Difference]: Without dead ends: 41 [2023-12-02 18:05:43,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:05:43,372 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:05:43,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 18:05:43,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-02 18:05:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-02 18:05:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 18:05:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2023-12-02 18:05:43,412 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 85 [2023-12-02 18:05:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:05:43,413 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2023-12-02 18:05:43,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 18:05:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2023-12-02 18:05:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 18:05:43,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:05:43,418 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:05:43,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:05:43,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:05:43,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:05:43,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:05:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2123223595, now seen corresponding path program 1 times [2023-12-02 18:05:43,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:05:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791516721] [2023-12-02 18:05:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:43,621 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 [2023-12-02 18:05:43,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:05:43,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:05:43,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:05:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:44,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:05:44,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-02 18:05:45,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:05:48,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:05:48,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791516721] [2023-12-02 18:05:48,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791516721] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:05:48,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1415465334] [2023-12-02 18:05:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:48,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:05:48,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:05:48,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:05:48,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 18:05:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:49,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 18:05:49,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-02 18:05:50,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:05:50,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1415465334] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:05:50,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569507827] [2023-12-02 18:05:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:05:50,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:05:50,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:05:50,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:05:50,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:05:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:05:50,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:05:50,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:05:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-02 18:05:51,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:05:51,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569507827] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:05:51,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:05:51,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2023-12-02 18:05:51,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393238907] [2023-12-02 18:05:51,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:05:51,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 18:05:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:05:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 18:05:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=122, Unknown=1, NotChecked=0, Total=156 [2023-12-02 18:05:51,698 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 18:05:54,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:05:56,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:05:58,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:06:00,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:06:03,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:06:04,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:06:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:06:05,693 INFO L93 Difference]: Finished difference Result 168 states and 243 transitions. [2023-12-02 18:06:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 18:06:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2023-12-02 18:06:05,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:06:05,697 INFO L225 Difference]: With dead ends: 168 [2023-12-02 18:06:05,697 INFO L226 Difference]: Without dead ends: 128 [2023-12-02 18:06:05,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=133, Invalid=372, Unknown=1, NotChecked=0, Total=506 [2023-12-02 18:06:05,700 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 137 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 55 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:06:05,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 269 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 370 Invalid, 4 Unknown, 0 Unchecked, 13.5s Time] [2023-12-02 18:06:05,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-02 18:06:05,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 85. [2023-12-02 18:06:05,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.290909090909091) internal successors, (71), 55 states have internal predecessors, (71), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 18:06:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2023-12-02 18:06:05,725 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 85 [2023-12-02 18:06:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:06:05,726 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2023-12-02 18:06:05,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 18:06:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2023-12-02 18:06:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 18:06:05,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:06:05,729 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:06:05,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 18:06:05,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 18:06:06,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 18:06:06,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 18:06:06,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:06:06,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:06:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2114485399, now seen corresponding path program 1 times [2023-12-02 18:06:06,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:06:06,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444670325] [2023-12-02 18:06:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:06:06,332 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 [2023-12-02 18:06:06,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:06:06,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:06:06,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afb79ca-d11e-4b5d-b0e3-253f5bfef8d3/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 18:06:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:06:06,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 18:06:06,722 INFO L285 TraceCheckSpWp]: Computing forward predicates...