./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4192a66ffc83592f60e35a5895253308c2ec852cebf43b3c62da49fcf7a2168c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:34:35,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:34:35,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:34:35,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:34:35,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:34:35,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:34:35,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:34:35,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:34:35,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:34:35,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:34:35,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:34:35,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:34:35,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:34:35,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:34:35,478 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:34:35,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:34:35,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:34:35,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:34:35,480 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:35,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:34:35,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:35,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:34:35,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:34:35,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:34:35,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:34:35,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:34:35,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:34:35,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:34:35,482 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 4192a66ffc83592f60e35a5895253308c2ec852cebf43b3c62da49fcf7a2168c [2024-12-02 11:34:35,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:34:35,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:34:35,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:34:35,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:34:35,721 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:34:35,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i [2024-12-02 11:34:38,362 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/4c147d013/86f84ff077544b829cf2270a80ce3d42/FLAG65c91dccf [2024-12-02 11:34:38,564 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:34:38,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i [2024-12-02 11:34:38,571 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/4c147d013/86f84ff077544b829cf2270a80ce3d42/FLAG65c91dccf [2024-12-02 11:34:38,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/4c147d013/86f84ff077544b829cf2270a80ce3d42 [2024-12-02 11:34:38,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:34:38,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:34:38,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:34:38,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:34:38,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:34:38,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1dbb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38, skipping insertion in model container [2024-12-02 11:34:38,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:34:38,752 WARN L250 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_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i[914,927] [2024-12-02 11:34:38,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:34:38,800 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:34:38,812 WARN L250 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_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i[914,927] [2024-12-02 11:34:38,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:34:38,846 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:34:38,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38 WrapperNode [2024-12-02 11:34:38,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:34:38,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:34:38,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:34:38,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:34:38,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,885 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-12-02 11:34:38,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:34:38,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:34:38,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:34:38,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:34:38,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,898 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,911 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:34:38,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:34:38,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:34:38,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:34:38,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:34:38,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (1/1) ... [2024-12-02 11:34:38,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:38,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:34:38,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:34:38,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:34:38,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:34:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:34:38,993 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:34:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:34:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:34:38,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:34:39,071 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:34:39,073 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:34:39,315 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 11:34:39,315 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:34:39,324 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:34:39,324 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 11:34:39,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:39 BoogieIcfgContainer [2024-12-02 11:34:39,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:34:39,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:34:39,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:34:39,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:34:39,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:34:38" (1/3) ... [2024-12-02 11:34:39,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407075b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:34:39, skipping insertion in model container [2024-12-02 11:34:39,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:38" (2/3) ... [2024-12-02 11:34:39,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407075b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:34:39, skipping insertion in model container [2024-12-02 11:34:39,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:39" (3/3) ... [2024-12-02 11:34:39,332 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-1.i [2024-12-02 11:34:39,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:34:39,349 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-1.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:34:39,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:34:39,420 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@6e4733df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:34:39,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:34:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 43 states have (on average 1.441860465116279) internal successors, (62), 44 states have internal predecessors, (62), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 11:34:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 11:34:39,433 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:39,434 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:39,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:39,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:39,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1965636737, now seen corresponding path program 1 times [2024-12-02 11:34:39,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:39,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611363648] [2024-12-02 11:34:39,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:34:39,590 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:34:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:34:39,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:34:39,664 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:34:39,666 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:34:39,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:34:39,672 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:34:39,718 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:34:39,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:34:39 BoogieIcfgContainer [2024-12-02 11:34:39,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:34:39,721 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:34:39,721 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:34:39,721 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:34:39,721 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:39" (3/4) ... [2024-12-02 11:34:39,723 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:34:39,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:34:39,725 INFO L158 Benchmark]: Toolchain (without parser) took 1134.93ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 62.9MB in the end (delta: 54.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-02 11:34:39,725 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:34:39,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.02ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 105.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:34:39,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.18ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 103.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:34:39,726 INFO L158 Benchmark]: Boogie Preprocessor took 39.61ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 101.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:34:39,726 INFO L158 Benchmark]: RCFGBuilder took 398.43ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 86.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:34:39,726 INFO L158 Benchmark]: TraceAbstraction took 393.83ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 63.1MB in the end (delta: 22.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:34:39,727 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 62.9MB in the end (delta: 266.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:34:39,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.02ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 105.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.18ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 103.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.61ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 101.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 398.43ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 86.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 393.83ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 63.1MB in the end (delta: 22.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 62.9MB in the end (delta: 266.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryFLOATComparisonOperation at line 38, overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of someUnaryFLOAToperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 5.5; [L23] float var_1_4 = 256.2; [L24] unsigned char var_1_5 = 128; [L25] unsigned char var_1_9 = 25; [L26] signed char var_1_10 = 4; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 1; [L29] signed char var_1_13 = -1; [L30] signed long int var_1_14 = 256; [L31] float var_1_15 = 127.2; [L32] signed char last_1_var_1_10 = 4; [L33] signed long int last_1_var_1_14 = 256; [L34] float last_1_var_1_15 = 127.2; VAL [isInitial=0, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_4=1281/5, var_1_5=128, var_1_9=25] [L90] isInitial = 1 [L91] FCALL initially() [L92] int k_loop; [L93] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_4=1281/5, var_1_5=128, var_1_9=25] [L93] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_4=1281/5, var_1_5=128, var_1_9=25] [L94] CALL updateLastVariables() [L81] last_1_var_1_10 = var_1_10 [L82] last_1_var_1_14 = var_1_14 [L83] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_4=1281/5, var_1_5=128, var_1_9=25] [L94] RET updateLastVariables() [L95] CALL updateVariables() [L65] var_1_4 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L66] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L67] var_1_9 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L68] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L69] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L69] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L70] var_1_11 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L71] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L72] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L72] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L73] var_1_12 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L74] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L75] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L75] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L76] var_1_13 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_13 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L77] RET assume_abort_if_not(var_1_13 >= -127) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L78] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L78] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=-2] [L95] RET updateVariables() [L96] CALL step() [L38] COND FALSE !(last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) [L45] var_1_5 = var_1_9 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=-2, var_1_9=-2] [L47] var_1_14 = var_1_5 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=636/5, var_1_1=11/2, var_1_5=-2, var_1_9=-2] [L48] COND FALSE !(\read(var_1_11)) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=636/5, var_1_1=11/2, var_1_5=-2, var_1_9=-2] [L53] var_1_15 = var_1_4 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=261, var_1_1=11/2, var_1_4=261, var_1_5=-2, var_1_9=-2] [L54] COND TRUE var_1_15 <= (- var_1_15) [L55] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=-2, var_1_9=-2] [L96] RET step() [L97] CALL, EXPR property() [L86] EXPR ((var_1_15 <= (- var_1_15)) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : ((var_1_15 > var_1_15) ? (var_1_1 == ((float) var_1_4)) : (var_1_1 == ((float) var_1_4)))) && ((last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) ? ((((4 + last_1_var_1_10) ^ last_1_var_1_14) >= last_1_var_1_10) ? (var_1_5 == ((unsigned char) 0)) : (var_1_5 == ((unsigned char) var_1_9))) : (var_1_5 == ((unsigned char) var_1_9))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=-2, var_1_9=-2] [L86-L87] return (((((var_1_15 <= (- var_1_15)) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : ((var_1_15 > var_1_15) ? (var_1_1 == ((float) var_1_4)) : (var_1_1 == ((float) var_1_4)))) && ((last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) ? ((((4 + last_1_var_1_10) ^ last_1_var_1_14) >= last_1_var_1_10) ? (var_1_5 == ((unsigned char) 0)) : (var_1_5 == ((unsigned char) var_1_9))) : (var_1_5 == ((unsigned char) var_1_9)))) && (var_1_11 ? ((! var_1_12) ? (var_1_10 == ((signed char) var_1_13)) : 1) : 1)) && (var_1_14 == ((signed long int) var_1_5))) && (var_1_15 == ((float) var_1_4)) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=-2, var_1_9=-2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=254, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=-2, var_1_9=-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 9, 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=55occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 11:34:39,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4192a66ffc83592f60e35a5895253308c2ec852cebf43b3c62da49fcf7a2168c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:34:41,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:34:41,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:34:41,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:34:41,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:34:41,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:34:41,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:34:41,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:34:41,954 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:34:41,954 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:34:41,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:34:41,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:34:41,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:34:41,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:34:41,955 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:34:41,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:34:41,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:34:41,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:34:41,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:34:41,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:34:41,956 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:41,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:41,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:34:41,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:34:41,958 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 4192a66ffc83592f60e35a5895253308c2ec852cebf43b3c62da49fcf7a2168c [2024-12-02 11:34:42,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:34:42,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:34:42,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:34:42,217 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:34:42,217 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:34:42,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i [2024-12-02 11:34:44,952 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/94abc5682/c5e834acec764e14aa910ade764cf22b/FLAG00c7939f0 [2024-12-02 11:34:45,175 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:34:45,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i [2024-12-02 11:34:45,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/94abc5682/c5e834acec764e14aa910ade764cf22b/FLAG00c7939f0 [2024-12-02 11:34:45,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/data/94abc5682/c5e834acec764e14aa910ade764cf22b [2024-12-02 11:34:45,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:34:45,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:34:45,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:34:45,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:34:45,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:34:45,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8316ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45, skipping insertion in model container [2024-12-02 11:34:45,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:34:45,670 WARN L250 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_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i[914,927] [2024-12-02 11:34:45,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:34:45,718 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:34:45,726 WARN L250 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_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-1.i[914,927] [2024-12-02 11:34:45,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:34:45,753 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:34:45,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45 WrapperNode [2024-12-02 11:34:45,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:34:45,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:34:45,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:34:45,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:34:45,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,790 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2024-12-02 11:34:45,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:34:45,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:34:45,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:34:45,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:34:45,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,813 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:34:45,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:34:45,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:34:45,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:34:45,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:34:45,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (1/1) ... [2024-12-02 11:34:45,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:45,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:34:45,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:34:45,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:34:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:34:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:34:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:34:45,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:34:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:34:45,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:34:45,948 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:34:45,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:34:46,155 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-02 11:34:46,155 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:34:46,166 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:34:46,166 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 11:34:46,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:46 BoogieIcfgContainer [2024-12-02 11:34:46,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:34:46,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:34:46,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:34:46,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:34:46,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:34:45" (1/3) ... [2024-12-02 11:34:46,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b40a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:34:46, skipping insertion in model container [2024-12-02 11:34:46,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:45" (2/3) ... [2024-12-02 11:34:46,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b40a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:34:46, skipping insertion in model container [2024-12-02 11:34:46,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:46" (3/3) ... [2024-12-02 11:34:46,187 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-1.i [2024-12-02 11:34:46,203 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:34:46,204 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-1.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:34:46,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:34:46,264 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@1497be9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:34:46,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:34:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 11:34:46,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 11:34:46,273 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:46,274 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:46,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:46,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:46,278 INFO L85 PathProgramCache]: Analyzing trace with hash 500499871, now seen corresponding path program 1 times [2024-12-02 11:34:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:34:46,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776890006] [2024-12-02 11:34:46,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:46,288 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 [2024-12-02 11:34:46,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:34:46,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:34:46,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:34:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:46,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:34:46,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:34:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-02 11:34:46,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:34:46,495 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:34:46,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776890006] [2024-12-02 11:34:46,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776890006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:46,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:46,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:34:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754176157] [2024-12-02 11:34:46,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:46,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:34:46,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:34:46,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:34:46,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:34:46,517 INFO L87 Difference]: Start difference. First operand has 42 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 11:34:46,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:46,535 INFO L93 Difference]: Finished difference Result 81 states and 124 transitions. [2024-12-02 11:34:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:34:46,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-12-02 11:34:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:46,540 INFO L225 Difference]: With dead ends: 81 [2024-12-02 11:34:46,541 INFO L226 Difference]: Without dead ends: 38 [2024-12-02 11:34:46,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:34:46,545 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:46,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:34:46,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-12-02 11:34:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-12-02 11:34:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 11:34:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-12-02 11:34:46,577 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 65 [2024-12-02 11:34:46,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:46,577 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-12-02 11:34:46,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 11:34:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-12-02 11:34:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 11:34:46,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:46,580 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:46,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 11:34:46,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:34:46,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:46,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:46,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1883469919, now seen corresponding path program 1 times [2024-12-02 11:34:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:34:46,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266342276] [2024-12-02 11:34:46,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:46,782 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 [2024-12-02 11:34:46,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:34:46,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:34:46,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b75d67-570c-4db9-a1bf-8b0d34a5b79a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:34:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:46,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 11:34:46,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 11:43:36,340 INFO L312 TraceCheckSpWp]: Computing backward predicates...