./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.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_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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_3368600b-c100-42be-9ceb-593f0a0c2e33/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 d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:04:41,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:04:41,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:04:41,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:04:41,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:04:41,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:04:41,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:04:41,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:04:41,462 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:04:41,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:04:41,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:04:41,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:04:41,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:04:41,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:04:41,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:04:41,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:04:41,465 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:41,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:04:41,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:41,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:04:41,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:04:41,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:04:41,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:04:41,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:04:41,467 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_3368600b-c100-42be-9ceb-593f0a0c2e33/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 -> d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd [2024-12-02 07:04:41,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:04:41,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:04:41,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:04:41,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:04:41,747 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:04:41,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2024-12-02 07:04:44,485 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/dc679219e/0b3790944e5d47c39e988d8fc1c895eb/FLAG501662faa [2024-12-02 07:04:44,699 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:04:44,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2024-12-02 07:04:44,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/dc679219e/0b3790944e5d47c39e988d8fc1c895eb/FLAG501662faa [2024-12-02 07:04:44,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/dc679219e/0b3790944e5d47c39e988d8fc1c895eb [2024-12-02 07:04:44,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:04:44,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:04:44,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:44,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:04:44,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:04:44,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:44,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fad2f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44, skipping insertion in model container [2024-12-02 07:04:44,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:44,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:04:44,890 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_3368600b-c100-42be-9ceb-593f0a0c2e33/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2024-12-02 07:04:44,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:44,940 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:04:44,950 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_3368600b-c100-42be-9ceb-593f0a0c2e33/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2024-12-02 07:04:44,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:44,982 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:04:44,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44 WrapperNode [2024-12-02 07:04:44,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:44,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:44,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:04:44,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:04:44,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:44,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,020 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-12-02 07:04:45,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:45,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:04:45,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:04:45,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:04:45,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,046 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 07:04:45,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,053 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:04:45,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:04:45,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:04:45,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:04:45,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (1/1) ... [2024-12-02 07:04:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:45,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:45,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:04:45,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:04:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:04:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:04:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:04:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:04:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:04:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:04:45,193 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:04:45,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:04:45,392 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 07:04:45,392 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:04:45,402 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:04:45,402 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:04:45,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:45 BoogieIcfgContainer [2024-12-02 07:04:45,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:04:45,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:04:45,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:04:45,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:04:45,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:04:44" (1/3) ... [2024-12-02 07:04:45,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683f4edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:45, skipping insertion in model container [2024-12-02 07:04:45,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:44" (2/3) ... [2024-12-02 07:04:45,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683f4edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:45, skipping insertion in model container [2024-12-02 07:04:45,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:45" (3/3) ... [2024-12-02 07:04:45,412 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-55.i [2024-12-02 07:04:45,428 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:04:45,430 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-55.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:04:45,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:04:45,500 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;@59a25e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:04:45,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:04:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:04:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:04:45,513 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:45,513 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:45,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:45,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:45,519 INFO L85 PathProgramCache]: Analyzing trace with hash -93781093, now seen corresponding path program 1 times [2024-12-02 07:04:45,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:45,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117748831] [2024-12-02 07:04:45,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:45,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:45,735 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:04:45,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:45,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117748831] [2024-12-02 07:04:45,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117748831] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:45,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057370532] [2024-12-02 07:04:45,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:45,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:45,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:45,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:45,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:04:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:45,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:04:45,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:04:45,895 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:45,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057370532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:45,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:04:45,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:04:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849285679] [2024-12-02 07:04:45,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:45,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:04:45,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:45,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:04:45,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:04:45,928 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:04:45,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:45,947 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-12-02 07:04:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:04:45,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2024-12-02 07:04:45,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:45,953 INFO L225 Difference]: With dead ends: 95 [2024-12-02 07:04:45,953 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 07:04:45,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 07:04:45,959 INFO L435 NwaCegarLoop]: 68 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, 68 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 07:04:45,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:04:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 07:04:45,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 07:04:45,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:04:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-12-02 07:04:45,993 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 106 [2024-12-02 07:04:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:45,993 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-12-02 07:04:45,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:04:45,994 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-12-02 07:04:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:04:45,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:45,996 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:46,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:04:46,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:04:46,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:46,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash 807760285, now seen corresponding path program 1 times [2024-12-02 07:04:46,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:46,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656358146] [2024-12-02 07:04:46,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:46,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:04:46,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860808232] [2024-12-02 07:04:46,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:46,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:46,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:46,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:46,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:04:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:04:46,542 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:04:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:04:46,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:04:46,633 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:04:46,634 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:04:46,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:04:46,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:46,840 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:04:46,895 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:04:46,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:04:46 BoogieIcfgContainer [2024-12-02 07:04:46,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:04:46,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:04:46,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:04:46,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:04:46,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:45" (3/4) ... [2024-12-02 07:04:46,902 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:04:46,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:04:46,904 INFO L158 Benchmark]: Toolchain (without parser) took 2176.98ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 80.5MB in the end (delta: 35.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:46,904 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:46,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.40ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 103.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:46,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.10ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 101.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:46,905 INFO L158 Benchmark]: Boogie Preprocessor took 41.46ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:46,906 INFO L158 Benchmark]: RCFGBuilder took 339.26ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 84.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:04:46,906 INFO L158 Benchmark]: TraceAbstraction took 1493.78ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 80.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-12-02 07:04:46,906 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 80.5MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:46,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.40ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 103.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.10ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 101.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.46ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.26ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 84.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1493.78ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 80.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 80.5MB in the end (delta: 15.8kB). 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 91, overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 25; [L27] unsigned short int var_1_8 = 5; [L28] unsigned short int var_1_9 = 1; [L29] signed char var_1_12 = 1; [L30] float var_1_13 = 127.75; [L31] float var_1_14 = 0.0; [L32] float var_1_15 = 255.7; [L33] float var_1_16 = 7.6; [L34] unsigned long int var_1_17 = 64; [L35] signed long int var_1_18 = 0; VAL [isInitial=0, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L102] isInitial = 1 [L103] FCALL initially() [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L74] var_1_6 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L76] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L77] var_1_8 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_8 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L79] RET assume_abort_if_not(var_1_8 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L80] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L81] var_1_9 = __VERIFIER_nondet_ushort() [L82] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L82] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L83] CALL assume_abort_if_not(var_1_9 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L83] RET assume_abort_if_not(var_1_9 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L84] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L84] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L85] var_1_12 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L86] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L87] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L88] var_1_14 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L89] RET assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L90] var_1_15 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L91] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L92] var_1_16 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L93] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L106] RET updateVariables() [L107] CALL step() [L39] var_1_13 = ((var_1_14 - var_1_15) - var_1_16) [L40] var_1_17 = var_1_6 [L41] var_1_18 = var_1_9 [L42] unsigned short int stepLocal_3 = var_1_9; [L43] unsigned long int stepLocal_2 = var_1_17; VAL [isInitial=1, stepLocal_2=1, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L44] COND FALSE !(stepLocal_2 <= ((var_1_17 / var_1_8) / var_1_9)) [L51] var_1_7 = var_1_12 VAL [isInitial=1, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L53] signed char stepLocal_1 = var_1_7; [L54] unsigned char stepLocal_0 = var_1_7 >= var_1_7; VAL [isInitial=1, stepLocal_0=1, stepLocal_1=-127, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L55] COND FALSE !(\read(var_1_2)) [L64] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=1, stepLocal_1=-127, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((var_1_2 ? (((var_1_7 >= var_1_7) && var_1_5) ? ((var_1_7 >= var_1_7) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) var_1_6))) : 1) : (var_1_1 == ((unsigned short int) var_1_6))) && ((var_1_17 <= ((var_1_17 / var_1_8) / var_1_9)) ? ((var_1_9 == (var_1_18 * (~ var_1_18))) ? (var_1_7 == ((signed char) var_1_12)) : (var_1_7 == ((signed char) var_1_12))) : (var_1_7 == ((signed char) var_1_12)))) && (var_1_13 == ((float) ((var_1_14 - var_1_15) - var_1_16)))) && (var_1_17 == ((unsigned long int) var_1_6))) && (var_1_18 == ((signed long int) var_1_9)) ; VAL [\result=0, isInitial=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 68 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 250 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1056/1088 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 07:04:46,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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_3368600b-c100-42be-9ceb-593f0a0c2e33/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 d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:04:49,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:04:49,109 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:04:49,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:04:49,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:04:49,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:04:49,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:04:49,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:04:49,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:04:49,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:04:49,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:04:49,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:04:49,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:04:49,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:04:49,144 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:04:49,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:04:49,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:04:49,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:04:49,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:04:49,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:04:49,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:04:49,146 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:04:49,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:04:49,146 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:04:49,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:49,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:49,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:49,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:49,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:04:49,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:49,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:49,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:49,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:49,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:04:49,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:04:49,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:04:49,149 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_3368600b-c100-42be-9ceb-593f0a0c2e33/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 -> d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd [2024-12-02 07:04:49,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:04:49,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:04:49,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:04:49,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:04:49,445 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:04:49,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2024-12-02 07:04:52,175 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/2f0e7f043/c8afb592411e470a8d295e8fb2e584fe/FLAG56a82ee9c [2024-12-02 07:04:52,355 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:04:52,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2024-12-02 07:04:52,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/2f0e7f043/c8afb592411e470a8d295e8fb2e584fe/FLAG56a82ee9c [2024-12-02 07:04:52,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/data/2f0e7f043/c8afb592411e470a8d295e8fb2e584fe [2024-12-02 07:04:52,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:04:52,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:04:52,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:52,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:04:52,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:04:52,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528f4155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52, skipping insertion in model container [2024-12-02 07:04:52,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:04:52,533 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_3368600b-c100-42be-9ceb-593f0a0c2e33/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2024-12-02 07:04:52,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:52,584 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:04:52,594 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_3368600b-c100-42be-9ceb-593f0a0c2e33/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2024-12-02 07:04:52,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:52,629 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:04:52,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52 WrapperNode [2024-12-02 07:04:52,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:52,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:52,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:04:52,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:04:52,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,663 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-12-02 07:04:52,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:52,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:04:52,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:04:52,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:04:52,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,674 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,686 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 07:04:52,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,693 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:04:52,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:04:52,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:04:52,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:04:52,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (1/1) ... [2024-12-02 07:04:52,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:52,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:52,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:04:52,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:04:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:04:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:04:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:04:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:04:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:04:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:04:52,810 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:04:52,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:04:53,718 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 07:04:53,718 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:04:53,725 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:04:53,726 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:04:53,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:53 BoogieIcfgContainer [2024-12-02 07:04:53,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:04:53,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:04:53,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:04:53,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:04:53,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:04:52" (1/3) ... [2024-12-02 07:04:53,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23311ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:53, skipping insertion in model container [2024-12-02 07:04:53,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:52" (2/3) ... [2024-12-02 07:04:53,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23311ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:53, skipping insertion in model container [2024-12-02 07:04:53,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:53" (3/3) ... [2024-12-02 07:04:53,734 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-55.i [2024-12-02 07:04:53,745 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:04:53,747 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-55.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:04:53,787 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:04:53,797 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;@266d48e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:04:53,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:04:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:04:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:04:53,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:53,808 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:53,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:53,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash -93781093, now seen corresponding path program 1 times [2024-12-02 07:04:53,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:04:53,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121865450] [2024-12-02 07:04:53,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:53,822 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 07:04:53,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:04:53,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:04:53,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:04:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:54,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:04:54,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-12-02 07:04:54,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:54,129 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:04:54,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121865450] [2024-12-02 07:04:54,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121865450] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:54,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:54,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:04:54,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608721401] [2024-12-02 07:04:54,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:54,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:04:54,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:04:54,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:04:54,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:04:54,151 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:04:54,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:54,170 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-12-02 07:04:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:04:54,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2024-12-02 07:04:54,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:54,178 INFO L225 Difference]: With dead ends: 95 [2024-12-02 07:04:54,178 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 07:04:54,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 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 07:04:54,184 INFO L435 NwaCegarLoop]: 68 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, 68 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 07:04:54,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:04:54,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 07:04:54,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 07:04:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:04:54,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-12-02 07:04:54,213 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 106 [2024-12-02 07:04:54,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:54,214 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-12-02 07:04:54,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:04:54,214 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-12-02 07:04:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:04:54,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:54,217 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:54,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:04:54,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:04:54,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:54,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:54,418 INFO L85 PathProgramCache]: Analyzing trace with hash 807760285, now seen corresponding path program 1 times [2024-12-02 07:04:54,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:04:54,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212196516] [2024-12-02 07:04:54,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:54,419 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 07:04:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:04:54,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:04:54,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:04:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:54,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 07:04:54,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:05:35,147 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:05:43,264 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 07:05:43,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:05:43,264 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:05:43,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212196516] [2024-12-02 07:05:43,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212196516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:43,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:05:43,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:05:43,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386578251] [2024-12-02 07:05:43,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:43,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:05:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:05:43,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:05:43,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:05:43,267 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:05:48,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:05:56,831 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:06:03,357 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:06:15,104 WARN L286 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:06:22,169 WARN L286 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:06:30,894 WARN L286 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:06:35,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:35,219 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2024-12-02 07:06:35,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:06:35,220 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 106 [2024-12-02 07:06:35,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:35,222 INFO L225 Difference]: With dead ends: 99 [2024-12-02 07:06:35,222 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 07:06:35,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 57.6s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:06:35,223 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 90 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:35,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 344 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2024-12-02 07:06:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 07:06:35,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2024-12-02 07:06:35,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:06:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-12-02 07:06:35,240 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 106 [2024-12-02 07:06:35,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:35,240 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-12-02 07:06:35,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:06:35,241 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-12-02 07:06:35,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 07:06:35,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:35,242 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:35,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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)] Forceful destruction successful, exit code 0 [2024-12-02 07:06:35,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:06:35,443 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:35,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:35,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1134723106, now seen corresponding path program 1 times [2024-12-02 07:06:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:06:35,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745880991] [2024-12-02 07:06:35,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:35,444 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 07:06:35,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:06:35,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:06:35,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 (4)] Waiting until timeout for monitored process [2024-12-02 07:06:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:35,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 07:06:35,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:59,907 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:07:12,749 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:07:26,646 WARN L286 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:07:40,594 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:07:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 07:07:54,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:07:54,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:07:54,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745880991] [2024-12-02 07:07:54,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745880991] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:07:54,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:07:54,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:07:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292356504] [2024-12-02 07:07:54,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:07:54,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:07:54,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:07:54,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:07:54,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:07:54,674 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 17 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:07:59,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:08:10,769 WARN L286 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:08:20,269 WARN L286 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:08:30,162 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:08:38,131 WARN L286 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:08:47,349 WARN L286 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:08:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:54,020 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions. [2024-12-02 07:08:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 07:08:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 17 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 107 [2024-12-02 07:08:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:54,023 INFO L225 Difference]: With dead ends: 102 [2024-12-02 07:08:54,023 INFO L226 Difference]: Without dead ends: 100 [2024-12-02 07:08:54,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 79.3s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:08:54,024 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 56 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:54,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 341 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2024-12-02 07:08:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-12-02 07:08:54,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2024-12-02 07:08:54,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:08:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-12-02 07:08:54,034 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 107 [2024-12-02 07:08:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:54,035 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-12-02 07:08:54,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 17 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:08:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-12-02 07:08:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 07:08:54,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:54,036 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:54,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 (4)] Forceful destruction successful, exit code 0 [2024-12-02 07:08:54,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:08:54,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:08:54,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1055008782, now seen corresponding path program 1 times [2024-12-02 07:08:54,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:08:54,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249784389] [2024-12-02 07:08:54,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:54,238 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 07:08:54,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:08:54,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:08:54,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 (5)] Waiting until timeout for monitored process [2024-12-02 07:08:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:54,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 07:08:54,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:09:08,179 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:09:20,877 WARN L286 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:10:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 07:10:04,282 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:10:04,282 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:10:04,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249784389] [2024-12-02 07:10:04,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249784389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:04,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:04,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:10:04,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722976395] [2024-12-02 07:10:04,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:04,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:10:04,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:10:04,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:10:04,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:10:04,284 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:10:08,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:10:22,613 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:10:31,094 WARN L286 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:10:46,423 WARN L286 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:11:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:03,844 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2024-12-02 07:11:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 07:11:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 108 [2024-12-02 07:11:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:03,846 INFO L225 Difference]: With dead ends: 108 [2024-12-02 07:11:03,846 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 07:11:03,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 68.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:11:03,848 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 70 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:03,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 398 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 24.4s Time] [2024-12-02 07:11:03,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 07:11:03,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 87. [2024-12-02 07:11:03,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:11:03,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-12-02 07:11:03,861 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 108 [2024-12-02 07:11:03,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:03,861 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-12-02 07:11:03,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:11:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-12-02 07:11:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 07:11:03,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:03,863 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:03,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 (5)] Forceful destruction successful, exit code 0 [2024-12-02 07:11:04,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:11:04,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:04,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1053161740, now seen corresponding path program 1 times [2024-12-02 07:11:04,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:11:04,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98617555] [2024-12-02 07:11:04,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:04,065 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 07:11:04,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:11:04,066 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:11:04,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 (6)] Waiting until timeout for monitored process [2024-12-02 07:11:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:04,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:11:04,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:11:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:11:04,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:11:04,275 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:11:04,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98617555] [2024-12-02 07:11:04,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98617555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:04,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:04,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:11:04,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871814794] [2024-12-02 07:11:04,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:04,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:11:04,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:11:04,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:11:04,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:11:04,277 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:11:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:05,034 INFO L93 Difference]: Finished difference Result 146 states and 194 transitions. [2024-12-02 07:11:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:11:05,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-12-02 07:11:05,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:05,036 INFO L225 Difference]: With dead ends: 146 [2024-12-02 07:11:05,036 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 07:11:05,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:11:05,037 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:05,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:11:05,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 07:11:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 07:11:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:11:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 07:11:05,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-12-02 07:11:05,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:05,038 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 07:11:05,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:11:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 07:11:05,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 07:11:05,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:11:05,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 (6)] Ended with exit code 0 [2024-12-02 07:11:05,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 07:11:05,244 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 07:11:05,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 07:11:18,528 WARN L286 SmtUtils]: Spent 13.25s on a formula simplification. DAG size of input: 108 DAG size of output: 8 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 07:11:31,405 WARN L286 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 106 DAG size of output: 3 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 07:11:31,408 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:11:31,416 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 07:11:31,416 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 07:11:31,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:11:31 BoogieIcfgContainer [2024-12-02 07:11:31,417 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:11:31,417 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:11:31,417 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:11:31,418 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:11:31,418 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:53" (3/4) ... [2024-12-02 07:11:31,419 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:11:31,423 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 07:11:31,426 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 07:11:31,426 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 07:11:31,426 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 07:11:31,426 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:11:31,483 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:11:31,483 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:11:31,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:11:31,484 INFO L158 Benchmark]: Toolchain (without parser) took 399100.10ms. Allocated memory was 92.3MB in the beginning and 251.7MB in the end (delta: 159.4MB). Free memory was 69.5MB in the beginning and 209.4MB in the end (delta: -140.0MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-12-02 07:11:31,484 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:11:31,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.50ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 56.2MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:11:31,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.67ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 54.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:11:31,485 INFO L158 Benchmark]: Boogie Preprocessor took 39.15ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 52.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:11:31,485 INFO L158 Benchmark]: RCFGBuilder took 1021.72ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 68.2MB in the end (delta: -15.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-02 07:11:31,486 INFO L158 Benchmark]: TraceAbstraction took 397688.80ms. Allocated memory was 92.3MB in the beginning and 251.7MB in the end (delta: 159.4MB). Free memory was 67.5MB in the beginning and 215.0MB in the end (delta: -147.5MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. [2024-12-02 07:11:31,486 INFO L158 Benchmark]: Witness Printer took 66.12ms. Allocated memory is still 251.7MB. Free memory was 215.0MB in the beginning and 209.4MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:11:31,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.50ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 56.2MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.67ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 54.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.15ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 52.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1021.72ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 68.2MB in the end (delta: -15.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 397688.80ms. Allocated memory was 92.3MB in the beginning and 251.7MB in the end (delta: 159.4MB). Free memory was 67.5MB in the beginning and 215.0MB in the end (delta: -147.5MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. * Witness Printer took 66.12ms. Allocated memory is still 251.7MB. Free memory was 215.0MB in the beginning and 209.4MB in the end (delta: 5.5MB). 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: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 371.5s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 171.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 63.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 218 mSDsluCounter, 1267 SdHoareTripleChecker+Invalid, 61.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 931 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1923 IncrementalHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 336 mSDtfsCounter, 1923 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 205.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=2, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 197.4s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 530 ConstructedInterpolants, 0 QuantifiedInterpolants, 2737 SizeOfPredicates, 43 NumberOfNonLiveVariables, 886 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 07:11:31,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3368600b-c100-42be-9ceb-593f0a0c2e33/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 Writing output log to file Ultimate.log Result: TRUE