./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:59:34,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:59:34,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:59:34,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:59:34,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:59:34,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:59:34,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:59:34,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:59:34,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:59:34,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:59:34,926 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:59:34,926 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:59:34,927 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:59:34,927 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:59:34,928 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:59:34,928 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:59:34,929 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:59:34,929 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:59:34,930 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:59:34,930 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:59:34,931 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:59:34,932 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:59:34,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:59:34,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:59:34,933 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:59:34,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:59:34,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:59:34,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:59:34,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:59:34,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:59:34,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:59:34,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:59:34,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:59:34,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:59:34,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:59:34,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:59:34,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:59:34,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:59:34,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:59:34,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:59:34,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:59:34,939 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:59:34,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:59:34,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:59:34,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:59:34,939 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:59:34,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:59:34,940 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_a2ce2471-3ed2-4957-8f16-dad1be80674a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c [2023-12-02 15:59:35,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:59:35,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:59:35,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:59:35,175 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:59:35,176 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:59:35,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-12-02 15:59:37,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:59:38,085 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:59:38,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-12-02 15:59:38,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data/74a4576ef/01348726e2a84feb8d4559ed547be95a/FLAGd16760ee4 [2023-12-02 15:59:38,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data/74a4576ef/01348726e2a84feb8d4559ed547be95a [2023-12-02 15:59:38,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:59:38,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:59:38,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:59:38,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:59:38,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:59:38,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d4e1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38, skipping insertion in model container [2023-12-02 15:59:38,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:59:38,301 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_a2ce2471-3ed2-4957-8f16-dad1be80674a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-12-02 15:59:38,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:59:38,363 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:59:38,375 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_a2ce2471-3ed2-4957-8f16-dad1be80674a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-12-02 15:59:38,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:59:38,423 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:59:38,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38 WrapperNode [2023-12-02 15:59:38,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:59:38,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:59:38,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:59:38,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:59:38,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,477 INFO L138 Inliner]: procedures = 29, calls = 114, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 323 [2023-12-02 15:59:38,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:59:38,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:59:38,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:59:38,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:59:38,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:59:38,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:59:38,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:59:38,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:59:38,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (1/1) ... [2023-12-02 15:59:38,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:59:38,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:59:38,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:59:38,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:59:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:59:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:59:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 15:59:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 15:59:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:59:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 15:59:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:59:38,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:59:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:59:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:59:38,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:59:38,706 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:59:38,708 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:59:39,040 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:59:39,459 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:59:39,459 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:59:39,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:59:39 BoogieIcfgContainer [2023-12-02 15:59:39,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:59:39,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:59:39,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:59:39,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:59:39,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:59:38" (1/3) ... [2023-12-02 15:59:39,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131fa33c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:59:39, skipping insertion in model container [2023-12-02 15:59:39,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:38" (2/3) ... [2023-12-02 15:59:39,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131fa33c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:59:39, skipping insertion in model container [2023-12-02 15:59:39,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:59:39" (3/3) ... [2023-12-02 15:59:39,470 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-0.i [2023-12-02 15:59:39,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:59:39,489 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:59:39,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:59:39,541 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;@2c2e37d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:59:39,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:59:39,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 15:59:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 15:59:39,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:59:39,555 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 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 15:59:39,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:59:39,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:59:39,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1526120726, now seen corresponding path program 1 times [2023-12-02 15:59:39,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:59:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815501548] [2023-12-02 15:59:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:59:39,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:59:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:59:40,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:59:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:59:40,304 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:59:40,305 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:59:40,306 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:59:40,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:59:40,311 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:59:40,315 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:59:40,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-12-02 15:59:40,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-12-02 15:59:40,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-12-02 15:59:40,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-12-02 15:59:40,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-12-02 15:59:40,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-12-02 15:59:40,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 15:59:40,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 15:59:40,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-12-02 15:59:40,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 15:59:40,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 15:59:40,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-12-02 15:59:40,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated [2023-12-02 15:59:40,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-12-02 15:59:40,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-12-02 15:59:40,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 15:59:40,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-12-02 15:59:40,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-12-02 15:59:40,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-12-02 15:59:40,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-12-02 15:59:40,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 15:59:40,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated [2023-12-02 15:59:40,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 15:59:40,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated [2023-12-02 15:59:40,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-12-02 15:59:40,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-12-02 15:59:40,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated [2023-12-02 15:59:40,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 15:59:40,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 15:59:40,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated [2023-12-02 15:59:40,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 15:59:40,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 15:59:40,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-12-02 15:59:40,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated [2023-12-02 15:59:40,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 15:59:40,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-12-02 15:59:40,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 15:59:40,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 15:59:40,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 15:59:40,361 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 15:59:40,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:59:40 BoogieIcfgContainer [2023-12-02 15:59:40,377 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:59:40,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:59:40,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:59:40,378 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:59:40,378 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:59:39" (3/4) ... [2023-12-02 15:59:40,380 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:59:40,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:59:40,382 INFO L158 Benchmark]: Toolchain (without parser) took 2268.37ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 114.2MB in the beginning and 135.5MB in the end (delta: -21.3MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2023-12-02 15:59:40,383 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory was 57.9MB in the beginning and 57.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:59:40,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.04ms. Allocated memory is still 146.8MB. Free memory was 114.2MB in the beginning and 100.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:59:40,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.39ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 97.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:59:40,385 INFO L158 Benchmark]: Boogie Preprocessor took 44.55ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 94.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:59:40,385 INFO L158 Benchmark]: RCFGBuilder took 938.32ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 69.2MB in the end (delta: 25.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 15:59:40,386 INFO L158 Benchmark]: TraceAbstraction took 912.69ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 68.5MB in the beginning and 136.6MB in the end (delta: -68.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-12-02 15:59:40,387 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 195.0MB. Free memory was 136.6MB in the beginning and 135.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:59:40,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory was 57.9MB in the beginning and 57.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.04ms. Allocated memory is still 146.8MB. Free memory was 114.2MB in the beginning and 100.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.39ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 97.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.55ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 94.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 938.32ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 69.2MB in the end (delta: 25.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 912.69ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 68.5MB in the beginning and 136.6MB in the end (delta: -68.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 195.0MB. Free memory was 136.6MB in the beginning and 135.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 1 }; [L25-L27] double double_Array_0[2][2] = { {5.25, 128.2}, {15.4, 25.8} }; [L28-L30] unsigned char unsigned_char_Array_0[2] = { 1, 100 }; [L31-L33] unsigned short int unsigned_short_int_Array_0[1] = { 5 }; [L34] double last_1_double_Array_0_0__0_ = 5.25; [L35] unsigned char last_1_unsigned_char_Array_0_1_ = 100; [L36] unsigned short int last_1_unsigned_short_int_Array_0_0_ = 5; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] CALL updateLastVariables() [L87] EXPR double_Array_0[0][0] [L87] last_1_double_Array_0_0__0_ = double_Array_0[0][0] [L88] EXPR unsigned_char_Array_0[1] [L88] last_1_unsigned_char_Array_0_1_ = unsigned_char_Array_0[1] [L89] EXPR unsigned_short_int_Array_0[0] [L89] last_1_unsigned_short_int_Array_0_0_ = unsigned_short_int_Array_0[0] [L99] RET updateLastVariables() [L100] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L75] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L78] double_Array_0[1][0] = __VERIFIER_nondet_double() [L79] EXPR double_Array_0[1][0] [L79] EXPR double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F [L79] EXPR (double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F ) [L79] EXPR double_Array_0[1][0] [L79] EXPR double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F [L79] EXPR double_Array_0[1][0] [L79] EXPR double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F [L79] EXPR (double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not((double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] double_Array_0[0][1] = __VERIFIER_nondet_double() [L81] EXPR double_Array_0[0][1] [L81] EXPR double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F [L81] EXPR double_Array_0[0][1] [L81] EXPR double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F [L81] EXPR (double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854765600e+12F && double_Array_0[0][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] CALL assume_abort_if_not((double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854765600e+12F && double_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854765600e+12F && double_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L82] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L100] RET updateVariables() [L101] CALL step() [L40] BOOL_unsigned_char_Array_0[0] [L40] COND TRUE BOOL_unsigned_char_Array_0[0] [L41] EXPR double_Array_0[1][0] [L41] EXPR double_Array_0[0][1] [L41] COND TRUE (double_Array_0[1][0] * (double_Array_0[0][1] - 5.3)) <= last_1_double_Array_0_0__0_ [L42] unsigned_short_int_Array_0[0] = last_1_unsigned_char_Array_0_1_ [L45] COND FALSE !((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) [L50] EXPR BOOL_unsigned_char_Array_0[1] [L50] COND TRUE ! BOOL_unsigned_char_Array_0[1] [L51] EXPR double_Array_0[0][1] [L51] EXPR double_Array_0[1][0] [L51] double_Array_0[1][1] = (double_Array_0[0][1] - double_Array_0[1][0]) [L55] EXPR double_Array_0[0][1] [L55] EXPR double_Array_0[1][0] [L55] EXPR double_Array_0[1][1] [L55] EXPR double_Array_0[1][1] [L55] COND TRUE (double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1] [L56] BOOL_unsigned_char_Array_0[1] [L56] COND FALSE !(BOOL_unsigned_char_Array_0[1]) [L65] EXPR double_Array_0[0][1] [L65] double_Array_0[0][0] = double_Array_0[0][1] [L101] RET step() [L102] CALL, EXPR property() [L92] EXPR BOOL_unsigned_char_Array_0[1] [L92] EXPR (! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1]))))) [L92] EXPR double_Array_0[1][1] [L92] EXPR double_Array_0[0][1] [L92] EXPR double_Array_0[1][0] [L92] EXPR (! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1]))))) [L92] EXPR ((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) [L92] EXPR double_Array_0[0][1] [L92] EXPR double_Array_0[1][0] [L92] EXPR double_Array_0[1][1] [L92] EXPR double_Array_0[1][1] [L92] EXPR ((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR BOOL_unsigned_char_Array_0[1] [L92] EXPR BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR double_Array_0[0][0] [L92] EXPR double_Array_0[0][1] [L92] EXPR BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR ((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR ((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) [L92] EXPR (((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])))) && (((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) ? ((last_1_unsigned_short_int_Array_0_0_ > last_1_unsigned_short_int_Array_0_0_) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) [L92] EXPR ((((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])))) && (((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) ? ((last_1_unsigned_short_int_Array_0_0_ > last_1_unsigned_short_int_Array_0_0_) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (((double_Array_0[1][0] * (double_Array_0[0][1] - 5.3)) <= last_1_double_Array_0_0__0_) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) last_1_unsigned_char_Array_0_1_)) : 1) : 1) [L92-L93] return ((((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])))) && (((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) ? ((last_1_unsigned_short_int_Array_0_0_ > last_1_unsigned_short_int_Array_0_0_) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (((double_Array_0[1][0] * (double_Array_0[0][1] - 5.3)) <= last_1_double_Array_0_0__0_) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) last_1_unsigned_char_Array_0_1_)) : 1) : 1) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 8, 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=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 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 15:59:40,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:59:42,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:59:42,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:59:42,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:59:42,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:59:42,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:59:42,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:59:42,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:59:42,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:59:42,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:59:42,458 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:59:42,459 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:59:42,460 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:59:42,460 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:59:42,461 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:59:42,461 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:59:42,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:59:42,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:59:42,463 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:59:42,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:59:42,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:59:42,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:59:42,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:59:42,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:59:42,466 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:59:42,467 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:59:42,467 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:59:42,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:59:42,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:59:42,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:59:42,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:59:42,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:59:42,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:59:42,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:59:42,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:59:42,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:59:42,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:59:42,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:59:42,471 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:59:42,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:59:42,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:59:42,471 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:59:42,472 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:59:42,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:59:42,472 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_a2ce2471-3ed2-4957-8f16-dad1be80674a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c [2023-12-02 15:59:42,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:59:42,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:59:42,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:59:42,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:59:42,768 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:59:42,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-12-02 15:59:45,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:59:45,767 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:59:45,768 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-12-02 15:59:45,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data/5d1d93bed/a200e019f2014c91aec4bb8e72cd2d9e/FLAG0db5d2263 [2023-12-02 15:59:45,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/data/5d1d93bed/a200e019f2014c91aec4bb8e72cd2d9e [2023-12-02 15:59:45,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:59:45,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:59:45,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:59:45,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:59:45,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:59:45,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:59:45" (1/1) ... [2023-12-02 15:59:45,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d48222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:45, skipping insertion in model container [2023-12-02 15:59:45,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:59:45" (1/1) ... [2023-12-02 15:59:45,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:59:45,996 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_a2ce2471-3ed2-4957-8f16-dad1be80674a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-12-02 15:59:46,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:59:46,068 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:59:46,082 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_a2ce2471-3ed2-4957-8f16-dad1be80674a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-12-02 15:59:46,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:59:46,141 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:59:46,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46 WrapperNode [2023-12-02 15:59:46,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:59:46,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:59:46,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:59:46,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:59:46,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,209 INFO L138 Inliner]: procedures = 33, calls = 114, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 323 [2023-12-02 15:59:46,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:59:46,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:59:46,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:59:46,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:59:46,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:59:46,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:59:46,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:59:46,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:59:46,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (1/1) ... [2023-12-02 15:59:46,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:59:46,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:59:46,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:59:46,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:59:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:59:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 15:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 15:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 15:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 15:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 15:59:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 15:59:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:59:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:59:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:59:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:59:46,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 15:59:46,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 15:59:46,450 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:59:46,452 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:59:58,668 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:59:58,714 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:59:58,714 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:59:58,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:59:58 BoogieIcfgContainer [2023-12-02 15:59:58,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:59:58,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:59:58,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:59:58,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:59:58,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:59:45" (1/3) ... [2023-12-02 15:59:58,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a30e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:59:58, skipping insertion in model container [2023-12-02 15:59:58,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:59:46" (2/3) ... [2023-12-02 15:59:58,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a30e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:59:58, skipping insertion in model container [2023-12-02 15:59:58,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:59:58" (3/3) ... [2023-12-02 15:59:58,722 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-0.i [2023-12-02 15:59:58,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:59:58,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:59:58,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:59:58,784 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;@75669311, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:59:58,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:59:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 67 states have (on average 1.507462686567164) internal successors, (101), 68 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 15:59:58,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 15:59:58,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:59:58,798 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:59:58,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:59:58,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:59:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1319971083, now seen corresponding path program 1 times [2023-12-02 15:59:58,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:59:58,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906686811] [2023-12-02 15:59:58,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:59:58,814 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 15:59:58,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:59:58,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 15:59:58,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 15:59:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:59:59,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:59:59,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:59:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-02 15:59:59,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:59:59,341 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:59:59,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906686811] [2023-12-02 15:59:59,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906686811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:59:59,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:59:59,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:59:59,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200467363] [2023-12-02 15:59:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:59:59,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:59:59,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:59:59,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:59:59,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:59:59,380 INFO L87 Difference]: Start difference. First operand has 78 states, 67 states have (on average 1.507462686567164) internal successors, (101), 68 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 15:59:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:59:59,436 INFO L93 Difference]: Finished difference Result 150 states and 235 transitions. [2023-12-02 15:59:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:59:59,438 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-12-02 15:59:59,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:59:59,447 INFO L225 Difference]: With dead ends: 150 [2023-12-02 15:59:59,447 INFO L226 Difference]: Without dead ends: 73 [2023-12-02 15:59:59,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 15:59:59,454 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:59:59,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:59:59,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-02 15:59:59,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-12-02 15:59:59,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 15:59:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 103 transitions. [2023-12-02 15:59:59,498 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 103 transitions. Word has length 73 [2023-12-02 15:59:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:59:59,498 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 103 transitions. [2023-12-02 15:59:59,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 15:59:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 103 transitions. [2023-12-02 15:59:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 15:59:59,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:59:59,502 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:59:59,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:59:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 15:59:59,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:59:59,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:59:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2130998057, now seen corresponding path program 1 times [2023-12-02 15:59:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:59:59,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583897581] [2023-12-02 15:59:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:59:59,706 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 15:59:59,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:59:59,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 15:59:59,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:00:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:00,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:00:00,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:00:00,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:00:00,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-12-02 16:00:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-02 16:00:00,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:00:00,585 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:00:00,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583897581] [2023-12-02 16:00:00,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583897581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:00,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:00,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:00:00,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481827690] [2023-12-02 16:00:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:00,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:00:00,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:00:00,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:00:00,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:00:00,590 INFO L87 Difference]: Start difference. First operand 73 states and 103 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 16:00:03,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:05,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:07,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:09,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:11,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:13,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:15,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:17,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:19,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:20,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:21,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:25,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:27,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:29,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:31,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:33,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:35,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:37,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:37,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:37,403 INFO L93 Difference]: Finished difference Result 151 states and 214 transitions. [2023-12-02 16:00:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:00:37,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-12-02 16:00:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:37,452 INFO L225 Difference]: With dead ends: 151 [2023-12-02 16:00:37,452 INFO L226 Difference]: Without dead ends: 79 [2023-12-02 16:00:37,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:00:37,454 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 97 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:37,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 255 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 15 Unknown, 0 Unchecked, 36.6s Time] [2023-12-02 16:00:37,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-02 16:00:37,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2023-12-02 16:00:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:00:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2023-12-02 16:00:37,467 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 73 [2023-12-02 16:00:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:37,467 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2023-12-02 16:00:37,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 16:00:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2023-12-02 16:00:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 16:00:37,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:37,469 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:37,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 16:00:37,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:00:37,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:37,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1401830813, now seen corresponding path program 1 times [2023-12-02 16:00:37,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:00:37,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682635206] [2023-12-02 16:00:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:37,672 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 16:00:37,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:00:37,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:00:37,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 16:00:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:38,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:00:38,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:00:38,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:00:38,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-12-02 16:00:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 16:00:38,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:00:38,470 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:00:38,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682635206] [2023-12-02 16:00:38,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682635206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:00:38,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:00:38,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:00:38,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628781398] [2023-12-02 16:00:38,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:00:38,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:00:38,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:00:38,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:00:38,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:00:38,474 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 16:00:41,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:43,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:45,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:47,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:49,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:51,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:53,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:55,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:00:57,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:02,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:04,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:06,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:08,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:10,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:12,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:01:12,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:01:12,984 INFO L93 Difference]: Finished difference Result 151 states and 212 transitions. [2023-12-02 16:01:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:01:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-02 16:01:13,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:01:13,025 INFO L225 Difference]: With dead ends: 151 [2023-12-02 16:01:13,025 INFO L226 Difference]: Without dead ends: 79 [2023-12-02 16:01:13,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:01:13,027 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 88 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:01:13,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 249 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 14 Unknown, 0 Unchecked, 34.3s Time] [2023-12-02 16:01:13,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-02 16:01:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2023-12-02 16:01:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 63 states have internal predecessors, (85), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:01:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2023-12-02 16:01:13,039 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 75 [2023-12-02 16:01:13,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:01:13,040 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2023-12-02 16:01:13,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 16:01:13,040 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2023-12-02 16:01:13,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 16:01:13,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:01:13,042 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:13,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 16:01:13,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:01:13,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:01:13,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:01:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 579251287, now seen corresponding path program 1 times [2023-12-02 16:01:13,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:01:13,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510130712] [2023-12-02 16:01:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:01:13,244 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 16:01:13,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:01:13,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:01:13,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 (5)] Waiting until timeout for monitored process [2023-12-02 16:01:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:01:43,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 16:01:43,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:01:46,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 92 [2023-12-02 16:01:47,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:01:47,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 239 treesize of output 131 [2023-12-02 16:01:57,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:01:57,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 463 treesize of output 202 [2023-12-02 16:02:15,870 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| (_ bv5 32)))) (let ((.cse0 (let ((.cse8 (concat (select .cse6 (bvadd |c_~#double_Array_0~0.offset| (_ bv12 32))) (select .cse6 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse8) ((_ extract 62 52) .cse8) ((_ extract 51 0) .cse8))))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= |c_~#double_Array_0~0.base| (_ bv5 32)) (exists ((|v_skolemized_q#valueAsBitvector_41| (_ BitVec 64))) (let ((.cse1 (let ((.cse7 (concat (select .cse6 (bvadd |c_~#double_Array_0~0.offset| (_ bv20 32))) (select .cse6 (bvadd (_ bv16 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7)))) (.cse5 (select .cse6 (bvadd |c_~#double_Array_0~0.offset| (_ bv24 32)))) (.cse4 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_41|))) (and (= (fp.sub c_currentRoundingMode .cse0 .cse1) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_41|))) (let ((.cse2 (let ((.cse3 (concat .cse4 .cse5))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.eq (fp.add c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode .cse1 .cse2)) .cse2)) (= .cse5 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_41|)) (= (select .cse6 (bvadd (_ bv28 32) |c_~#double_Array_0~0.offset|)) .cse4)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (exists ((|v_skolemized_q#valueAsBitvector_42| (_ BitVec 64))) (= (select .cse6 |c_~#double_Array_0~0.offset|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_42|))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-02 16:02:32,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:02:32,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 728 treesize of output 244 [2023-12-02 16:03:03,009 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_20 (_ BitVec 32)) (v_arrayElimCell_22 (_ BitVec 32)) (v_arrayElimCell_18 (_ BitVec 32)) (v_arrayElimCell_17 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_41| (_ BitVec 64))) (let ((.cse1 (let ((.cse5 (concat v_arrayElimCell_20 v_arrayElimCell_17))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5)))) (.cse0 (let ((.cse4 (concat v_arrayElimCell_22 v_arrayElimCell_18))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_41|)) (fp.sub roundNearestTiesToEven .cse0 .cse1)) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_41|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.eq (fp.add roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven .cse1 .cse2)) .cse2)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)))))) (= |c_ULTIMATE.start_property_#t~ite62#1| (_ bv1 32))) is different from false [2023-12-02 16:03:23,589 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_20 (_ BitVec 32)) (v_arrayElimCell_22 (_ BitVec 32)) (v_arrayElimCell_18 (_ BitVec 32)) (v_arrayElimCell_17 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_41| (_ BitVec 64))) (let ((.cse1 (let ((.cse5 (concat v_arrayElimCell_20 v_arrayElimCell_17))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5)))) (.cse0 (let ((.cse4 (concat v_arrayElimCell_22 v_arrayElimCell_18))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_41|)) (fp.sub roundNearestTiesToEven .cse0 .cse1)) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_41|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_41|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.eq (fp.add roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven .cse1 .cse2)) .cse2)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)))))) |c_ULTIMATE.start_property_#t~short83#1|) is different from false [2023-12-02 16:03:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 20 proven. 48 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 16:03:23,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:41,582 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse1 (select |c_#memory_int| |c_~#double_Array_0~0.base|))) (fp.eq (let ((.cse0 (concat (select .cse1 (bvadd (_ bv28 32) |c_~#double_Array_0~0.offset|)) (select .cse1 (bvadd |c_~#double_Array_0~0.offset| (_ bv24 32)))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp.sub c_currentRoundingMode (let ((.cse2 (concat (select .cse1 (bvadd |c_~#double_Array_0~0.offset| (_ bv12 32))) (select .cse1 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (let ((.cse3 (concat (select .cse1 (bvadd |c_~#double_Array_0~0.offset| (_ bv20 32))) (select .cse1 (bvadd (_ bv16 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))))) (not (fp.eq (fp.add c_currentRoundingMode |c_ULTIMATE.start_step_#t~mem16#1| (fp.add c_currentRoundingMode |c_ULTIMATE.start_step_#t~mem14#1| |c_ULTIMATE.start_step_#t~mem15#1|)) |c_ULTIMATE.start_step_#t~mem17#1|))) is different from false [2023-12-02 16:03:43,610 WARN L876 $PredicateComparison]: unable to prove that (or (let ((.cse1 (select |c_#memory_int| |c_~#double_Array_0~0.base|))) (fp.eq (let ((.cse0 (concat (select .cse1 (bvadd (_ bv28 32) |c_~#double_Array_0~0.offset|)) (select .cse1 (bvadd |c_~#double_Array_0~0.offset| (_ bv24 32)))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp.sub c_currentRoundingMode (let ((.cse2 (concat (select .cse1 (bvadd |c_~#double_Array_0~0.offset| (_ bv12 32))) (select .cse1 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (let ((.cse3 (concat (select .cse1 (bvadd |c_~#double_Array_0~0.offset| (_ bv20 32))) (select .cse1 (bvadd (_ bv16 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))))) (not (fp.eq (fp.add c_currentRoundingMode |c_ULTIMATE.start_step_#t~mem16#1| (fp.add c_currentRoundingMode |c_ULTIMATE.start_step_#t~mem14#1| |c_ULTIMATE.start_step_#t~mem15#1|)) |c_ULTIMATE.start_step_#t~mem17#1|))) is different from true [2023-12-02 16:03:52,715 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#double_Array_0~0.base|))) (let ((.cse2 (let ((.cse6 (concat (select .cse4 (bvadd (_ bv28 32) |c_~#double_Array_0~0.offset|)) (select .cse4 (bvadd |c_~#double_Array_0~0.offset| (_ bv24 32)))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6)))) (.cse0 (let ((.cse5 (concat (select .cse4 (bvadd |c_~#double_Array_0~0.offset| (_ bv12 32))) (select .cse4 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5)))) (.cse1 (let ((.cse3 (concat (select .cse4 (bvadd |c_~#double_Array_0~0.offset| (_ bv20 32))) (select .cse4 (bvadd (_ bv16 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (or (not (fp.eq (fp.add c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode .cse1 .cse2)) .cse2)) (fp.eq .cse2 (fp.sub c_currentRoundingMode .cse0 .cse1))))) is different from false [2023-12-02 16:03:54,778 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#double_Array_0~0.base|))) (let ((.cse2 (let ((.cse6 (concat (select .cse4 (bvadd (_ bv28 32) |c_~#double_Array_0~0.offset|)) (select .cse4 (bvadd |c_~#double_Array_0~0.offset| (_ bv24 32)))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6)))) (.cse0 (let ((.cse5 (concat (select .cse4 (bvadd |c_~#double_Array_0~0.offset| (_ bv12 32))) (select .cse4 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5)))) (.cse1 (let ((.cse3 (concat (select .cse4 (bvadd |c_~#double_Array_0~0.offset| (_ bv20 32))) (select .cse4 (bvadd (_ bv16 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (or (not (fp.eq (fp.add c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode .cse1 .cse2)) .cse2)) (fp.eq .cse2 (fp.sub c_currentRoundingMode .cse0 .cse1))))) is different from true [2023-12-02 16:03:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 16:03:54,989 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:54,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510130712] [2023-12-02 16:03:54,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510130712] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:54,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:03:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2023-12-02 16:03:54,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712732492] [2023-12-02 16:03:54,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:54,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:03:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:54,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:03:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=250, Unknown=8, NotChecked=180, Total=506 [2023-12-02 16:03:54,992 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 16:04:00,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:02,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:03,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:09,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:11,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:18,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:20,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:22,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:25,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:29,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:31,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:33,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:39,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:41,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:44,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:46,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:48,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:50,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:52,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:54,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:56,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:04:59,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:05:01,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:05:03,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:05:05,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:05:05,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:05,399 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2023-12-02 16:05:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:05:05,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 77 [2023-12-02 16:05:05,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:05,414 INFO L225 Difference]: With dead ends: 198 [2023-12-02 16:05:05,414 INFO L226 Difference]: Without dead ends: 126 [2023-12-02 16:05:05,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=83, Invalid=349, Unknown=8, NotChecked=210, Total=650 [2023-12-02 16:05:05,416 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 114 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 353 IncrementalHoareTripleChecker+Unchecked, 65.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:05,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 353 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 20 Unknown, 353 Unchecked, 65.1s Time] [2023-12-02 16:05:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-02 16:05:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 79. [2023-12-02 16:05:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 69 states have internal predecessors, (93), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:05:05,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2023-12-02 16:05:05,430 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 77 [2023-12-02 16:05:05,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:05,431 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2023-12-02 16:05:05,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 16:05:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2023-12-02 16:05:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 16:05:05,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:05,433 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:05,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 (5)] Ended with exit code 0 [2023-12-02 16:05:05,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:05:05,634 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:05,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:05,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1234015753, now seen corresponding path program 1 times [2023-12-02 16:05:05,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:05,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013028675] [2023-12-02 16:05:05,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:05,636 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 16:05:05,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:05,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/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 16:05:05,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ce2471-3ed2-4957-8f16-dad1be80674a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process