./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 6f582f036ce8ee2fd911e824fcfafcbbd771a7c70f7459896810d2fbb79a2be9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:03:59,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:03:59,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:03:59,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:03:59,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:03:59,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:03:59,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:03:59,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:03:59,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:03:59,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:03:59,450 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:03:59,450 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:03:59,451 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:03:59,451 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:03:59,452 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:03:59,452 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:03:59,453 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:03:59,453 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:03:59,454 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:03:59,454 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:03:59,455 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:03:59,460 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:03:59,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:03:59,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:03:59,462 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:03:59,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:03:59,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:03:59,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:03:59,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:03:59,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:03:59,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:03:59,464 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:03:59,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:03:59,465 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:03:59,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:03:59,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:03:59,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:03:59,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:03:59,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:03:59,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:03:59,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:03:59,467 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:03:59,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:03:59,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:03:59,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:03:59,468 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:03:59,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:03:59,468 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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f582f036ce8ee2fd911e824fcfafcbbd771a7c70f7459896810d2fbb79a2be9 [2023-12-02 18:03:59,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:03:59,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:03:59,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:03:59,736 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:03:59,737 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:03:59,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i [2023-12-02 18:04:02,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:04:02,717 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:04:02,718 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i [2023-12-02 18:04:02,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data/16cbe8de2/a7ed52e3c0c9463ab4f0cf66a7b6c5ec/FLAGf3915b77d [2023-12-02 18:04:02,739 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data/16cbe8de2/a7ed52e3c0c9463ab4f0cf66a7b6c5ec [2023-12-02 18:04:02,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:04:02,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:04:02,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:04:02,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:04:02,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:04:02,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:02" (1/1) ... [2023-12-02 18:04:02,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b3c656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:02, skipping insertion in model container [2023-12-02 18:04:02,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:02" (1/1) ... [2023-12-02 18:04:02,774 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:04:02,900 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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i[915,928] [2023-12-02 18:04:02,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:04:02,963 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:04:02,977 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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i[915,928] [2023-12-02 18:04:02,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:04:03,016 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:04:03,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03 WrapperNode [2023-12-02 18:04:03,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:04:03,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:04:03,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:04:03,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:04:03,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,061 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127 [2023-12-02 18:04:03,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:04:03,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:04:03,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:04:03,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:04:03,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:04:03,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:04:03,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:04:03,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:04:03,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (1/1) ... [2023-12-02 18:04:03,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:04:03,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:04:03,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:04:03,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:04:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:04:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:04:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:04:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:04:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:04:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:04:03,245 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:04:03,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:04:03,468 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:04:03,611 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:04:03,611 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:04:03,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:03 BoogieIcfgContainer [2023-12-02 18:04:03,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:04:03,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:04:03,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:04:03,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:04:03,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:04:02" (1/3) ... [2023-12-02 18:04:03,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2734ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:03, skipping insertion in model container [2023-12-02 18:04:03,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:03" (2/3) ... [2023-12-02 18:04:03,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2734ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:03, skipping insertion in model container [2023-12-02 18:04:03,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:03" (3/3) ... [2023-12-02 18:04:03,623 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-35.i [2023-12-02 18:04:03,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:04:03,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:04:03,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:04:03,694 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;@44316c9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:04:03,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:04:03,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 18:04:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 18:04:03,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:03,707 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:03,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:04:03,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1797549676, now seen corresponding path program 1 times [2023-12-02 18:04:03,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850343892] [2023-12-02 18:04:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:03,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:04:03,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:04:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:04:04,096 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:04:04,097 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:04:04,098 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:04:04,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:04:04,104 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:04:04,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:04:04,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:04:04 BoogieIcfgContainer [2023-12-02 18:04:04,168 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:04:04,169 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:04:04,169 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:04:04,169 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:04:04,169 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:03" (3/4) ... [2023-12-02 18:04:04,172 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:04:04,172 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:04:04,174 INFO L158 Benchmark]: Toolchain (without parser) took 1431.33ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 102.9MB in the beginning and 132.2MB in the end (delta: -29.3MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-12-02 18:04:04,174 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:04:04,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.15ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 90.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 18:04:04,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.85ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:04:04,176 INFO L158 Benchmark]: Boogie Preprocessor took 30.66ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:04:04,177 INFO L158 Benchmark]: RCFGBuilder took 519.54ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 86.8MB in the beginning and 163.7MB in the end (delta: -76.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-12-02 18:04:04,177 INFO L158 Benchmark]: TraceAbstraction took 552.07ms. Allocated memory is still 201.3MB. Free memory was 162.7MB in the beginning and 132.2MB in the end (delta: 30.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 18:04:04,178 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 201.3MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:04:04,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.15ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 90.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.85ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.66ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.54ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 86.8MB in the beginning and 163.7MB in the end (delta: -76.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 552.07ms. Allocated memory is still 201.3MB. Free memory was 162.7MB in the beginning and 132.2MB in the end (delta: 30.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 201.3MB. Free memory is still 132.2MB. 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 someBinaryFLOATComparisonOperation at line 101, overapproximation of someUnaryDOUBLEoperation at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 4.8; [L23] unsigned long int var_1_2 = 2; [L24] unsigned long int var_1_3 = 5; [L25] float var_1_4 = 255.1; [L26] float var_1_5 = -0.6; [L27] signed short int var_1_6 = -10; [L28] unsigned char var_1_7 = 0; [L29] unsigned char var_1_8 = 1; [L30] signed char var_1_11 = -2; [L31] signed char var_1_12 = 10; [L32] signed char var_1_13 = 5; [L33] float var_1_14 = 499.375; [L34] float var_1_15 = 0.0; [L35] float var_1_16 = 63.2; [L36] float var_1_17 = 0.0; [L37] float var_1_18 = 15.75; [L38] float var_1_19 = 5.75; [L105] isInitial = 1 [L106] FCALL initially() [L107] int k_loop; [L108] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_2=2, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L108] COND TRUE k_loop < 1 [L109] FCALL updateLastVariables() [L110] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_ulong() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L69] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L73] var_1_4 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L75] var_1_5 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L77] var_1_7 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_8=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_8=1] [L79] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L80] var_1_8 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0] [L82] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L83] var_1_12 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L85] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L86] var_1_13 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_13 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_13 >= -31) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L88] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L89] var_1_15 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_15 >= 4611686.018427382800e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_15 >= 4611686.018427382800e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L91] var_1_16 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L93] var_1_17 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_17 >= 4611686.018427382800e+12F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_17 >= 4611686.018427382800e+12F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L95] var_1_18 = __VERIFIER_nondet_float() [L96] CALL assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L110] RET updateVariables() [L111] CALL step() [L42] unsigned long int stepLocal_0 = var_1_2; [L43] COND FALSE !(stepLocal_0 >= (~ var_1_3)) [L46] var_1_11 = (-32 + (var_1_12 + ((((10) < (var_1_13)) ? (10) : (var_1_13))))) [L47] signed char stepLocal_1 = var_1_12; [L48] COND TRUE stepLocal_1 != var_1_3 [L49] COND FALSE !(\read(var_1_7)) [L55] var_1_19 = var_1_5 [L56] COND FALSE !(\read(var_1_7)) [L63] var_1_6 = var_1_11 [L111] RET step() [L112] CALL, EXPR property() [L101-L102] return (((((var_1_2 >= (~ var_1_3)) ? (var_1_1 == ((float) (var_1_4 + var_1_5))) : 1) && (var_1_7 ? (var_1_8 ? (var_1_6 == ((signed short int) (var_1_11 + var_1_11))) : (var_1_6 == ((signed short int) (var_1_11 + var_1_11)))) : (var_1_6 == ((signed short int) var_1_11)))) && (var_1_11 == ((signed char) (-32 + (var_1_12 + ((((10) < (var_1_13)) ? (10) : (var_1_13)))))))) && ((var_1_12 != var_1_3) ? (var_1_7 ? (var_1_14 == ((float) ((var_1_15 - var_1_16) - (var_1_17 - var_1_18)))) : 1) : (var_1_14 == ((float) var_1_18)))) && (var_1_19 == ((float) var_1_5)) ; [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=-1, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_18=3995/8, var_1_19=504, var_1_1=24/5, var_1_2=0, var_1_3=0, var_1_5=504, var_1_6=-1, var_1_7=0, var_1_8=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=-1, var_1_12=32, var_1_13=-1, var_1_14=3995/8, var_1_18=3995/8, var_1_19=504, var_1_1=24/5, var_1_2=0, var_1_3=0, var_1_5=504, var_1_6=-1, var_1_7=0, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 18, 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=39occurred 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, 70 NumberOfCodeBlocks, 70 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 18:04:04,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 6f582f036ce8ee2fd911e824fcfafcbbd771a7c70f7459896810d2fbb79a2be9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:04:06,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:04:06,269 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:04:06,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:04:06,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:04:06,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:04:06,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:04:06,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:04:06,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:04:06,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:04:06,307 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:04:06,308 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:04:06,309 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:04:06,309 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:04:06,310 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:04:06,310 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:04:06,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:04:06,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:04:06,312 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:04:06,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:04:06,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:04:06,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:04:06,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:04:06,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:04:06,315 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:04:06,316 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:04:06,316 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:04:06,317 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:04:06,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:04:06,317 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:04:06,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:04:06,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:04:06,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:04:06,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:04:06,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:04:06,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:04:06,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:04:06,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:04:06,320 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:04:06,320 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:04:06,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:04:06,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:04:06,321 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:04:06,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:04:06,322 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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f582f036ce8ee2fd911e824fcfafcbbd771a7c70f7459896810d2fbb79a2be9 [2023-12-02 18:04:06,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:04:06,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:04:06,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:04:06,684 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:04:06,684 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:04:06,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i [2023-12-02 18:04:09,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:04:09,773 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:04:09,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i [2023-12-02 18:04:09,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data/1abe92682/863593cb948948308038b07fedb05ee0/FLAGa62611e78 [2023-12-02 18:04:09,797 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/data/1abe92682/863593cb948948308038b07fedb05ee0 [2023-12-02 18:04:09,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:04:09,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:04:09,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:04:09,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:04:09,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:04:09,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:09" (1/1) ... [2023-12-02 18:04:09,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229dd49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:09, skipping insertion in model container [2023-12-02 18:04:09,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:09" (1/1) ... [2023-12-02 18:04:09,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:04:09,969 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_f27f8368-9c81-4172-ae2b-69eb71c7a45b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i[915,928] [2023-12-02 18:04:10,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:04:10,037 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:04:10,051 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-35.i[915,928] [2023-12-02 18:04:10,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:04:10,096 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:04:10,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10 WrapperNode [2023-12-02 18:04:10,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:04:10,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:04:10,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:04:10,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:04:10,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,150 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-12-02 18:04:10,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:04:10,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:04:10,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:04:10,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:04:10,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:04:10,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:04:10,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:04:10,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:04:10,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2023-12-02 18:04:10,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:04:10,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:04:10,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:04:10,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:04:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:04:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:04:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:04:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:04:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:04:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:04:10,358 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:04:10,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:04:11,551 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:04:11,600 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:04:11,600 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:04:11,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:11 BoogieIcfgContainer [2023-12-02 18:04:11,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:04:11,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:04:11,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:04:11,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:04:11,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:04:09" (1/3) ... [2023-12-02 18:04:11,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b39ee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:11, skipping insertion in model container [2023-12-02 18:04:11,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (2/3) ... [2023-12-02 18:04:11,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b39ee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:11, skipping insertion in model container [2023-12-02 18:04:11,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:11" (3/3) ... [2023-12-02 18:04:11,609 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-35.i [2023-12-02 18:04:11,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:04:11,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:04:11,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:04:11,671 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;@398436e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:04:11,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:04:11,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 18:04:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 18:04:11,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:11,687 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:11,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:04:11,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:11,692 INFO L85 PathProgramCache]: Analyzing trace with hash -245582495, now seen corresponding path program 1 times [2023-12-02 18:04:11,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:04:11,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764454727] [2023-12-02 18:04:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:11,706 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 18:04:11,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:04:11,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 18:04:11,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 18:04:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:12,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:04:12,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:04:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-12-02 18:04:12,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:04:12,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:04:12,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764454727] [2023-12-02 18:04:12,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764454727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:04:12,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:04:12,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:04:12,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972001480] [2023-12-02 18:04:12,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:04:12,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:04:12,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:04:12,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:04:12,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:04:12,144 INFO L87 Difference]: Start difference. First operand has 50 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:04:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:12,945 INFO L93 Difference]: Finished difference Result 99 states and 167 transitions. [2023-12-02 18:04:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:04:12,948 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2023-12-02 18:04:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:12,956 INFO L225 Difference]: With dead ends: 99 [2023-12-02 18:04:12,957 INFO L226 Difference]: Without dead ends: 48 [2023-12-02 18:04:12,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 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 18:04:12,963 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:12,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 18:04:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-02 18:04:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-02 18:04:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 18:04:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-12-02 18:04:13,011 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 112 [2023-12-02 18:04:13,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:13,012 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-12-02 18:04:13,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:04:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-12-02 18:04:13,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 18:04:13,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:13,016 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:13,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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)] Ended with exit code 0 [2023-12-02 18:04:13,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 18:04:13,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:04:13,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:13,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1707580843, now seen corresponding path program 1 times [2023-12-02 18:04:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:04:13,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305362534] [2023-12-02 18:04:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:13,219 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 18:04:13,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:04:13,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 18:04:13,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/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 18:04:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:13,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 18:04:13,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:08:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 287 proven. 66 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-12-02 18:08:19,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:10:22,161 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse23 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse26 (= .cse23 c_~var_1_3~0))) (let ((.cse25 ((_ sign_extend 16) c_~var_1_6~0)) (.cse24 ((_ sign_extend 24) c_~var_1_11~0)) (.cse10 (not .cse26)) (.cse11 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0)))))) (let ((.cse9 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse21 (or .cse10 .cse11)) (.cse22 (or .cse10 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))) (.cse4 (= .cse25 ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse24))))) (.cse20 (= c_~var_1_7~0 (_ bv0 8))) (.cse3 (or .cse26 .cse11)) (.cse6 (or (= (bvnot c_~var_1_3~0) (_ bv0 32)) .cse26 .cse11)) (.cse2 (= .cse25 ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0)))) (.cse19 ((_ sign_extend 24) c_~var_1_13~0))) (let ((.cse0 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse23))) .cse24)) (.cse1 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse23 .cse19 (_ bv4294967264 32)))) .cse24)) (.cse12 (not .cse2)) (.cse13 (or .cse20 (and .cse3 .cse6))) (.cse14 (or .cse20 .cse4)) (.cse15 (or (not .cse4) (and .cse21 .cse22 (or .cse20 (and .cse10 .cse11))))) (.cse16 (or .cse4 (and .cse20 .cse21 .cse22))) (.cse7 (not .cse20)) (.cse8 (not .cse9)) (.cse5 (bvslt (_ bv10 32) .cse19))) (and (or (not .cse0) (and (or .cse1 (and (or .cse2 (and (or (and .cse3 .cse4 .cse5 .cse6 .cse7) .cse8) (or .cse9 (and .cse4 .cse5 .cse10 .cse11 .cse7)))) (or .cse12 (and (or .cse8 (and .cse13 .cse5 .cse14)) (or .cse9 (and .cse5 .cse15 .cse16)))))) (or (and (or .cse12 (and (or .cse9 (and .cse15 .cse16)) (or (and .cse13 .cse14) .cse8))) (or .cse2 (and (or (and .cse3 .cse4 .cse6 .cse7) .cse8) (or .cse9 (and .cse4 .cse10 .cse11 .cse7))))) (not .cse1)))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)) (let ((.cse17 (fp.eq c_~var_1_19~0 c_~var_1_5~0))) (or (and .cse0 .cse17) (let ((.cse18 (not .cse5))) (and .cse1 .cse17 (or .cse12 (and (or (and .cse13 .cse14 .cse18) .cse8) (or (and .cse18 .cse15 .cse16) .cse9))) (or .cse2 (and (or .cse9 (and .cse4 .cse10 .cse11 .cse18 .cse7)) (or (and .cse3 .cse4 .cse6 .cse18 .cse7) .cse8))))))))))))) is different from true [2023-12-02 18:10:53,605 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ sign_extend 24) c_~var_1_11~0)) (.cse7 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse1 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse2 (let ((.cse10 (let ((.cse12 (not (= .cse7 c_~var_1_3~0)))) (and (or .cse12 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))) (or .cse12 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))))) (.cse11 (= ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse8))) ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0))))) (and (or .cse10 (not .cse11)) (or .cse10 .cse11)))) (.cse9 ((_ sign_extend 24) c_~var_1_13~0))) (let ((.cse3 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse9 (_ bv4294967264 32)))) .cse8)) (.cse5 (or .cse1 .cse2)) (.cse4 (bvslt (_ bv10 32) .cse9)) (.cse0 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse7))) .cse8))) (and (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)) (or (not .cse0) (and (or .cse1 .cse2 (not .cse3)) (or .cse3 (and .cse4 .cse5)))) (let ((.cse6 (fp.eq c_~var_1_19~0 c_~var_1_5~0))) (or (and .cse3 .cse6 .cse5 (not .cse4)) (and .cse0 .cse6))))))) is different from true [2023-12-02 18:11:25,704 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ sign_extend 24) c_~var_1_11~0)) (.cse7 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse4 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse5 (let ((.cse9 (let ((.cse11 (not (= .cse7 c_~var_1_3~0)))) (and (or .cse11 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))) (or .cse11 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))))) (.cse10 (= ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse8))) ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0))))) (and (or .cse9 (not .cse10)) (or .cse9 .cse10)))) (.cse6 ((_ sign_extend 24) c_~var_1_13~0))) (let ((.cse0 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse7))) .cse8)) (.cse1 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse6 (_ bv4294967264 32)))) .cse8)) (.cse3 (bvslt (_ bv10 32) .cse6)) (.cse2 (or .cse4 .cse5))) (and (or .cse0 (and .cse1 .cse2 (not .cse3))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)) (or (not .cse0) (and (or .cse4 .cse5 (not .cse1)) (or .cse1 (and .cse3 .cse2)))))))) is different from true [2023-12-02 18:11:41,529 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:11:41,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305362534] [2023-12-02 18:11:41,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305362534] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:11:41,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [72408938] [2023-12-02 18:11:41,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:11:41,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:11:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:11:41,549 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:11:41,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27f8368-9c81-4172-ae2b-69eb71c7a45b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 18:11:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:11:42,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 18:11:42,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:14:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 287 proven. 66 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-12-02 18:14:10,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:18:17,392 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse40 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse43 ((_ sign_extend 16) c_~var_1_6~0)) (.cse41 ((_ sign_extend 24) c_~var_1_11~0)) (.cse42 ((_ sign_extend 24) c_~var_1_13~0)) (.cse22 (= .cse40 c_~var_1_3~0))) (let ((.cse38 (bvuge c_~var_1_2~0 (bvnot c_~var_1_3~0))) (.cse14 (not .cse22)) (.cse15 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))) (.cse3 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse18 (bvslt (_ bv10 32) .cse42)) (.cse26 (= c_~var_1_7~0 (_ bv0 8))) (.cse12 (= .cse43 ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse41))))) (.cse10 (= .cse43 ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0)))) (.cse19 (fp.eq c_~var_1_19~0 c_~var_1_5~0)) (.cse17 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse40 .cse42 (_ bv4294967264 32)))) .cse41)) (.cse39 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse40))) .cse41))) (let ((.cse1 (not .cse39)) (.cse16 (not .cse17)) (.cse21 (and .cse39 .cse19)) (.cse2 (not .cse10)) (.cse7 (or .cse26 .cse12)) (.cse20 (not .cse18)) (.cse13 (not .cse26)) (.cse9 (not .cse3)) (.cse23 (not .cse12)) (.cse27 (and .cse14 .cse15)) (.cse6 (not .cse38)) (.cse24 (or .cse14 .cse15)) (.cse25 (or .cse14 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))) (.cse0 (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)))) (and (or .cse0 (let ((.cse8 (or .cse26 .cse22 .cse15)) (.cse4 (or (and .cse26 .cse6 .cse24 .cse25) .cse12)) (.cse5 (or .cse23 (and .cse6 .cse24 .cse25 (or .cse26 .cse27)))) (.cse11 (or .cse22 .cse15))) (and (or .cse1 (and (or (and (or .cse2 (and (or .cse3 (and .cse4 .cse5)) (or (and .cse6 .cse7 .cse8) .cse9))) (or .cse10 (and (or (and .cse11 .cse6 .cse12 .cse13) .cse9) (or .cse3 (and .cse6 .cse12 .cse14 .cse15 .cse13))))) .cse16) (or .cse17 (and (or .cse10 (and (or (and .cse11 .cse6 .cse12 .cse18 .cse13) .cse9) (or (and .cse6 .cse12 .cse18 .cse14 .cse15 .cse13) .cse3))) (or .cse2 (and (or .cse3 (and .cse18 .cse4 .cse5)) (or (and .cse6 .cse18 .cse7 .cse8) .cse9))))))) (or (and .cse17 .cse19 (or .cse2 (and (or (and .cse6 .cse7 .cse20 .cse8) .cse9) (or .cse3 (and .cse4 .cse5 .cse20)))) (or .cse10 (and (or .cse3 (and .cse6 .cse12 .cse14 .cse15 .cse20 .cse13)) (or (and .cse11 .cse6 .cse12 .cse20 .cse13) .cse9)))) .cse21)))) (or (let ((.cse37 (and .cse24 .cse25))) (let ((.cse31 (or .cse6 .cse22 .cse15)) (.cse32 (or .cse38 .cse22 .cse15)) (.cse33 (or .cse6 .cse27)) (.cse34 (or .cse38 .cse27)) (.cse35 (or .cse6 .cse37)) (.cse36 (or .cse37 .cse38))) (let ((.cse28 (or .cse12 (and .cse26 .cse35 .cse36))) (.cse29 (or .cse23 (and (or .cse26 (and .cse33 .cse34)) .cse35 .cse36))) (.cse30 (or .cse26 (and .cse31 .cse32)))) (and (or .cse1 (and (or .cse17 (and (or .cse2 (and (or .cse3 (and .cse18 .cse28 .cse29)) (or (and .cse18 .cse7 .cse30) .cse9))) (or .cse10 (and (or (and .cse12 .cse18 .cse31 .cse13 .cse32) .cse9) (or .cse3 (and .cse33 .cse12 .cse18 .cse34 .cse13)))))) (or (and (or .cse2 (and (or .cse3 (and .cse28 .cse29)) (or .cse9 (and .cse7 .cse30)))) (or .cse10 (and (or .cse3 (and .cse33 .cse12 .cse34 .cse13)) (or (and .cse12 .cse31 .cse13 .cse32) .cse9)))) .cse16))) (or .cse21 (and (or .cse2 (and (or (and .cse28 .cse29 .cse20) .cse3) (or .cse9 (and .cse7 .cse20 .cse30)))) .cse17 .cse19 (or .cse10 (and (or .cse3 (and .cse33 .cse12 .cse34 .cse20 .cse13)) (or (and .cse12 .cse31 .cse20 .cse13 .cse32) .cse9))))))))) (not .cse0))))))) is different from true