./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 fb6084b1d47e624872609ebdc1d7596105f0fe52752c1031b16d65d48dd2a5c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:28:42,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:28:42,574 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:28:42,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:28:42,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:28:42,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:28:42,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:28:42,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:28:42,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:28:42,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:28:42,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:28:42,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:28:42,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:28:42,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:28:42,603 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:28:42,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:28:42,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:28:42,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:28:42,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:28:42,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:28:42,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:28:42,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:28:42,606 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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 -> fb6084b1d47e624872609ebdc1d7596105f0fe52752c1031b16d65d48dd2a5c7 [2024-12-02 08:28:42,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:28:42,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:28:42,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:28:42,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:28:42,845 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:28:42,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i [2024-12-02 08:28:45,612 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/ad1bdfa1b/324e73dd69364b04beb29f89e6b72c9e/FLAG1b804ea8e [2024-12-02 08:28:45,795 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:28:45,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i [2024-12-02 08:28:45,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/ad1bdfa1b/324e73dd69364b04beb29f89e6b72c9e/FLAG1b804ea8e [2024-12-02 08:28:45,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/ad1bdfa1b/324e73dd69364b04beb29f89e6b72c9e [2024-12-02 08:28:45,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:28:45,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:28:45,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:28:45,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:28:45,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:28:45,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:28:45" (1/1) ... [2024-12-02 08:28:45,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573580c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:45, skipping insertion in model container [2024-12-02 08:28:45,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:28:45" (1/1) ... [2024-12-02 08:28:45,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:28:45,941 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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i[915,928] [2024-12-02 08:28:45,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:28:45,985 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:28:45,993 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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i[915,928] [2024-12-02 08:28:46,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:28:46,022 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:28:46,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46 WrapperNode [2024-12-02 08:28:46,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:28:46,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:28:46,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:28:46,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:28:46,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,057 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-12-02 08:28:46,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:28:46,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:28:46,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:28:46,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:28:46,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,080 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 08:28:46,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,085 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:28:46,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:28:46,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:28:46,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:28:46,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (1/1) ... [2024-12-02 08:28:46,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:28:46,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:28:46,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:28:46,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:28:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:28:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:28:46,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:28:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:28:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:28:46,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:28:46,197 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:28:46,198 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:28:46,371 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 08:28:46,372 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:28:46,381 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:28:46,381 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:28:46,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:46 BoogieIcfgContainer [2024-12-02 08:28:46,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:28:46,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:28:46,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:28:46,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:28:46,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:28:45" (1/3) ... [2024-12-02 08:28:46,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15af38ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:28:46, skipping insertion in model container [2024-12-02 08:28:46,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:46" (2/3) ... [2024-12-02 08:28:46,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15af38ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:28:46, skipping insertion in model container [2024-12-02 08:28:46,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:46" (3/3) ... [2024-12-02 08:28:46,390 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-50.i [2024-12-02 08:28:46,404 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:28:46,406 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-50.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:28:46,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:28:46,465 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;@16ff2548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:28:46,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:28:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:28:46,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 08:28:46,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:28:46,475 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:46,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:28:46,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:28:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash -451522965, now seen corresponding path program 1 times [2024-12-02 08:28:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:28:46,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102429811] [2024-12-02 08:28:46,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:28:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:28:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 08:28:46,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:28:46,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102429811] [2024-12-02 08:28:46,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102429811] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:28:46,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528249222] [2024-12-02 08:28:46,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:46,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:28:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:28:46,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:28:46,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:28:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:28:46,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:28:46,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:28:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 08:28:46,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:28:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528249222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:28:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:28:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:28:46,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675334491] [2024-12-02 08:28:46,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:28:46,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:28:46,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:28:46,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:28:46,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:28:46,869 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:28:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:28:46,889 INFO L93 Difference]: Finished difference Result 99 states and 164 transitions. [2024-12-02 08:28:46,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:28:46,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2024-12-02 08:28:46,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:28:46,895 INFO L225 Difference]: With dead ends: 99 [2024-12-02 08:28:46,895 INFO L226 Difference]: Without dead ends: 49 [2024-12-02 08:28:46,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 08:28:46,900 INFO L435 NwaCegarLoop]: 70 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, 70 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 08:28:46,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:28:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-12-02 08:28:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-12-02 08:28:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:28:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2024-12-02 08:28:46,930 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 105 [2024-12-02 08:28:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:28:46,930 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-12-02 08:28:46,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:28:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2024-12-02 08:28:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 08:28:46,932 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:28:46,932 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:46,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:28:47,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:28:47,133 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:28:47,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:28:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2103955869, now seen corresponding path program 1 times [2024-12-02 08:28:47,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:28:47,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430123056] [2024-12-02 08:28:47,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:47,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:28:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:28:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 08:28:47,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:28:47,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430123056] [2024-12-02 08:28:47,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430123056] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:28:47,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590864517] [2024-12-02 08:28:47,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:47,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:28:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:28:47,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:28:47,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:28:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:28:47,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:28:47,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:28:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 253 proven. 24 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-12-02 08:28:48,008 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:28:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 08:28:48,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590864517] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:28:48,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:28:48,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-12-02 08:28:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850137468] [2024-12-02 08:28:48,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:28:48,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:28:48,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:28:48,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:28:48,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:28:48,210 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 08:28:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:28:48,593 INFO L93 Difference]: Finished difference Result 157 states and 218 transitions. [2024-12-02 08:28:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:28:48,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 105 [2024-12-02 08:28:48,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:28:48,596 INFO L225 Difference]: With dead ends: 157 [2024-12-02 08:28:48,597 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 08:28:48,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:28:48,598 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 125 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:28:48,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 252 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:28:48,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 08:28:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 56. [2024-12-02 08:28:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:28:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2024-12-02 08:28:48,615 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 105 [2024-12-02 08:28:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:28:48,616 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2024-12-02 08:28:48,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 08:28:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-12-02 08:28:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 08:28:48,618 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:28:48,618 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:48,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:28:48,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:28:48,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:28:48,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:28:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash -328948507, now seen corresponding path program 1 times [2024-12-02 08:28:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:28:48,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948170065] [2024-12-02 08:28:48,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:48,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:28:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:28:48,880 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:28:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:28:48,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:28:48,953 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:28:48,954 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:28:48,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:28:48,958 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 08:28:49,007 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:28:49,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:28:49 BoogieIcfgContainer [2024-12-02 08:28:49,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:28:49,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:28:49,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:28:49,011 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:28:49,012 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:46" (3/4) ... [2024-12-02 08:28:49,014 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:28:49,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:28:49,015 INFO L158 Benchmark]: Toolchain (without parser) took 3198.29ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 91.5MB in the end (delta: 25.3MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-12-02 08:28:49,016 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:28:49,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.13ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:28:49,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.79ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:28:49,017 INFO L158 Benchmark]: Boogie Preprocessor took 34.72ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 100.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:28:49,017 INFO L158 Benchmark]: RCFGBuilder took 288.41ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 85.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:28:49,017 INFO L158 Benchmark]: TraceAbstraction took 2626.76ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 92.7MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:28:49,017 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:28:49,019 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.13ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.79ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.72ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 100.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.41ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 85.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2626.76ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 92.7MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] double var_1_2 = 8.875; [L24] double var_1_3 = 63.5; [L25] double var_1_4 = 16.6; [L26] double var_1_5 = 127.8; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 0; [L29] unsigned char var_1_8 = 1; [L30] signed short int var_1_9 = 256; [L31] signed short int var_1_10 = 10000; [L32] signed short int var_1_11 = 4; [L33] signed short int var_1_12 = -32; [L34] signed long int var_1_13 = 32; [L35] signed short int var_1_14 = 32; [L36] signed long int last_1_var_1_13 = 32; VAL [isInitial=0, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_2=71/8, var_1_3=127/2, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L104] isInitial = 1 [L105] FCALL initially() [L107] CALL updateLastVariables() [L97] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_2=71/8, var_1_3=127/2, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_3=127/2, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_3=127/2, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L70] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_3=127/2, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L71] var_1_3 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L72] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_4=83/5, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L73] var_1_4 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L74] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_5=639/5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L75] var_1_5 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L76] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L77] var_1_6 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_7=0, var_1_8=1, var_1_9=256] [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_7=0, var_1_8=1, var_1_9=256] [L79] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L79] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L80] var_1_7 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_8=1, var_1_9=256] [L81] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_8=1, var_1_9=256] [L82] CALL assume_abort_if_not(var_1_7 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L82] RET assume_abort_if_not(var_1_7 <= 0) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=256] [L83] var_1_8 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_8 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L84] RET assume_abort_if_not(var_1_8 >= 1) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L85] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L85] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=10000, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L86] var_1_10 = __VERIFIER_nondet_short() [L87] CALL assume_abort_if_not(var_1_10 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L87] RET assume_abort_if_not(var_1_10 >= -1) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L88] CALL assume_abort_if_not(var_1_10 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L88] RET assume_abort_if_not(var_1_10 <= 32766) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=4, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L89] var_1_11 = __VERIFIER_nondet_short() [L90] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L90] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L91] CALL assume_abort_if_not(var_1_11 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L91] RET assume_abort_if_not(var_1_11 <= 32766) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=32, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L92] var_1_14 = __VERIFIER_nondet_short() [L93] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L93] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L94] CALL assume_abort_if_not(var_1_14 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L94] RET assume_abort_if_not(var_1_14 <= 32767) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L108] RET updateVariables() [L109] CALL step() [L40] COND FALSE !((((((var_1_2 + var_1_3)) < ((var_1_4 - var_1_5))) ? ((var_1_2 + var_1_3)) : ((var_1_4 - var_1_5)))) != 31.9) [L47] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=256] [L49] COND TRUE var_1_2 > var_1_5 [L50] var_1_9 = (var_1_10 - var_1_11) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L52] unsigned char stepLocal_0 = var_1_8; VAL [isInitial=1, last_1_var_1_13=32, stepLocal_0=-255, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L53] COND FALSE !(var_1_1 && stepLocal_0) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L56] signed short int stepLocal_2 = var_1_9; [L57] signed long int stepLocal_1 = var_1_11 - var_1_14; VAL [isInitial=1, last_1_var_1_13=32, stepLocal_1=0, stepLocal_2=32766, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L58] COND TRUE var_1_11 <= stepLocal_2 [L59] var_1_13 = (var_1_10 - var_1_11) VAL [isInitial=1, last_1_var_1_13=32, stepLocal_1=0, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32766, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L109] RET step() [L110] CALL, EXPR property() [L100-L101] return (((((((((var_1_2 + var_1_3)) < ((var_1_4 - var_1_5))) ? ((var_1_2 + var_1_3)) : ((var_1_4 - var_1_5)))) != 31.9) ? (var_1_6 ? (var_1_1 == ((unsigned char) var_1_7)) : (var_1_1 == ((unsigned char) var_1_8))) : (var_1_1 == ((unsigned char) var_1_7))) && ((var_1_2 > var_1_5) ? (var_1_9 == ((signed short int) (var_1_10 - var_1_11))) : 1)) && ((var_1_1 && var_1_8) ? (var_1_12 == ((signed short int) (var_1_11 - 1))) : 1)) && ((var_1_11 <= var_1_9) ? (var_1_13 == ((signed long int) (var_1_10 - var_1_11))) : ((last_1_var_1_13 > (var_1_11 - var_1_14)) ? (var_1_13 == ((signed long int) last_1_var_1_13)) : (var_1_13 == ((signed long int) last_1_var_1_13)))) ; VAL [\result=0, isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32766, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32766, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=32, var_1_10=32766, var_1_11=0, var_1_12=-32, var_1_13=32766, var_1_14=0, var_1_1=0, var_1_6=0, var_1_7=0, var_1_8=-255, var_1_9=32766] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 322 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 151 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 331 GetRequests, 312 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 2 MinimizatonAttempts, 55 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 2 NumberOfNonLiveVariables, 496 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 2298/2400 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 08:28:49,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 fb6084b1d47e624872609ebdc1d7596105f0fe52752c1031b16d65d48dd2a5c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:28:50,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:28:51,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:28:51,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:28:51,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:28:51,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:28:51,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:28:51,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:28:51,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:28:51,031 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:28:51,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:28:51,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:28:51,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:28:51,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:28:51,032 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:28:51,033 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:28:51,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:28:51,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:28:51,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:28:51,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:28:51,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:28:51,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:28:51,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:28:51,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:28:51,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:28:51,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:28:51,035 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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 -> fb6084b1d47e624872609ebdc1d7596105f0fe52752c1031b16d65d48dd2a5c7 [2024-12-02 08:28:51,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:28:51,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:28:51,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:28:51,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:28:51,283 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:28:51,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i [2024-12-02 08:28:53,966 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/6dcb98d88/ffc7066ac5a940dca8bbd0551a855099/FLAG43393d06e [2024-12-02 08:28:54,164 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:28:54,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i [2024-12-02 08:28:54,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/6dcb98d88/ffc7066ac5a940dca8bbd0551a855099/FLAG43393d06e [2024-12-02 08:28:54,180 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/data/6dcb98d88/ffc7066ac5a940dca8bbd0551a855099 [2024-12-02 08:28:54,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:28:54,183 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:28:54,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:28:54,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:28:54,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:28:54,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142803b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54, skipping insertion in model container [2024-12-02 08:28:54,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:28:54,335 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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i[915,928] [2024-12-02 08:28:54,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:28:54,384 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:28:54,392 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_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-50.i[915,928] [2024-12-02 08:28:54,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:28:54,424 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:28:54,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54 WrapperNode [2024-12-02 08:28:54,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:28:54,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:28:54,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:28:54,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:28:54,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,464 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-12-02 08:28:54,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:28:54,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:28:54,465 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:28:54,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:28:54,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,488 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 08:28:54,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,496 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:28:54,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:28:54,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:28:54,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:28:54,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (1/1) ... [2024-12-02 08:28:54,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:28:54,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:28:54,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:28:54,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:28:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:28:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:28:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:28:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:28:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:28:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:28:54,631 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:28:54,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:28:56,721 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 08:28:56,721 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:28:56,731 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:28:56,731 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:28:56,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:56 BoogieIcfgContainer [2024-12-02 08:28:56,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:28:56,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:28:56,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:28:56,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:28:56,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:28:54" (1/3) ... [2024-12-02 08:28:56,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8807d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:28:56, skipping insertion in model container [2024-12-02 08:28:56,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54" (2/3) ... [2024-12-02 08:28:56,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8807d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:28:56, skipping insertion in model container [2024-12-02 08:28:56,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:56" (3/3) ... [2024-12-02 08:28:56,740 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-50.i [2024-12-02 08:28:56,755 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:28:56,756 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-50.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:28:56,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:28:56,803 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;@52b8b3ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:28:56,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:28:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:28:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 08:28:56,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:28:56,814 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:56,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:28:56,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:28:56,818 INFO L85 PathProgramCache]: Analyzing trace with hash -451522965, now seen corresponding path program 1 times [2024-12-02 08:28:56,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:28:56,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093328539] [2024-12-02 08:28:56,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:56,827 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 08:28:56,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:28:56,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:28:56,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:28:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:28:57,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:28:57,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:28:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-12-02 08:28:57,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:28:57,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:28:57,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093328539] [2024-12-02 08:28:57,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093328539] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:28:57,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:28:57,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:28:57,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563987831] [2024-12-02 08:28:57,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:28:57,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:28:57,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:28:57,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:28:57,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:28:57,192 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:28:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:28:57,212 INFO L93 Difference]: Finished difference Result 99 states and 164 transitions. [2024-12-02 08:28:57,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:28:57,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2024-12-02 08:28:57,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:28:57,218 INFO L225 Difference]: With dead ends: 99 [2024-12-02 08:28:57,218 INFO L226 Difference]: Without dead ends: 49 [2024-12-02 08:28:57,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 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 08:28:57,224 INFO L435 NwaCegarLoop]: 70 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, 70 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 08:28:57,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:28:57,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-12-02 08:28:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-12-02 08:28:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:28:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2024-12-02 08:28:57,260 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 105 [2024-12-02 08:28:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:28:57,260 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-12-02 08:28:57,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:28:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2024-12-02 08:28:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 08:28:57,263 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:28:57,264 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:57,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:28:57,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:28:57,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:28:57,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:28:57,465 INFO L85 PathProgramCache]: Analyzing trace with hash -2103955869, now seen corresponding path program 1 times [2024-12-02 08:28:57,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:28:57,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44026378] [2024-12-02 08:28:57,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:28:57,466 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 08:28:57,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:28:57,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:28:57,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:28:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:28:57,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:28:57,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:28:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 253 proven. 24 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-12-02 08:28:58,012 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:28:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 08:28:58,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:28:58,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44026378] [2024-12-02 08:28:58,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44026378] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:28:58,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:28:58,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-12-02 08:28:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238323871] [2024-12-02 08:28:58,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:28:58,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:28:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:28:58,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:28:58,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:28:58,333 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 08:29:01,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:29:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:02,014 INFO L93 Difference]: Finished difference Result 157 states and 218 transitions. [2024-12-02 08:29:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:29:02,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 105 [2024-12-02 08:29:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:02,017 INFO L225 Difference]: With dead ends: 157 [2024-12-02 08:29:02,017 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 08:29:02,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:29:02,019 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 131 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:02,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 217 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 08:29:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 08:29:02,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 56. [2024-12-02 08:29:02,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:29:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2024-12-02 08:29:02,034 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 105 [2024-12-02 08:29:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:02,034 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2024-12-02 08:29:02,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 08:29:02,035 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-12-02 08:29:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 08:29:02,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:02,036 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:02,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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)] Ended with exit code 0 [2024-12-02 08:29:02,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:29:02,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:29:02,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:02,237 INFO L85 PathProgramCache]: Analyzing trace with hash -328948507, now seen corresponding path program 1 times [2024-12-02 08:29:02,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:29:02,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796374980] [2024-12-02 08:29:02,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:02,238 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 08:29:02,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:29:02,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:29:02,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4d5c80-a112-473f-a86f-9dbe0aa4292a/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 08:29:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:02,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:29:02,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:26,720 WARN L286 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 08:29:54,168 WARN L286 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 08:30:52,297 WARN L286 SmtUtils]: Spent 13.86s 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 08:31:29,923 WARN L286 SmtUtils]: Spent 10.33s 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 08:37:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 331 proven. 39 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-02 08:37:05,239 INFO L312 TraceCheckSpWp]: Computing backward predicates...