./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.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_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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_2a13829c-856a-4279-b290-b60228b09f73/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 a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:33:14,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:33:14,809 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:33:14,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:33:14,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:33:14,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:33:14,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:33:14,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:33:14,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:33:14,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:33:14,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:33:14,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:33:14,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:33:14,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:33:14,839 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:33:14,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:33:14,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:33:14,841 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:33:14,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:33:14,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:33:14,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:33:14,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:33:14,842 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_2a13829c-856a-4279-b290-b60228b09f73/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 -> a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a [2024-12-02 14:33:15,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:33:15,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:33:15,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:33:15,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:33:15,074 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:33:15,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2024-12-02 14:33:17,825 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/7ee0e6a11/92b5279885c4439ebeec75f5617e3f3a/FLAG922f0d35a [2024-12-02 14:33:18,042 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:33:18,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2024-12-02 14:33:18,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/7ee0e6a11/92b5279885c4439ebeec75f5617e3f3a/FLAG922f0d35a [2024-12-02 14:33:18,065 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/7ee0e6a11/92b5279885c4439ebeec75f5617e3f3a [2024-12-02 14:33:18,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:33:18,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:33:18,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:33:18,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:33:18,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:33:18,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c5f162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18, skipping insertion in model container [2024-12-02 14:33:18,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:33:18,236 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_2a13829c-856a-4279-b290-b60228b09f73/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2024-12-02 14:33:18,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:33:18,280 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:33:18,292 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_2a13829c-856a-4279-b290-b60228b09f73/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2024-12-02 14:33:18,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:33:18,323 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:33:18,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18 WrapperNode [2024-12-02 14:33:18,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:33:18,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:33:18,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:33:18,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:33:18,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,359 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 73 [2024-12-02 14:33:18,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:33:18,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:33:18,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:33:18,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:33:18,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,385 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 14:33:18,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,390 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:33:18,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:33:18,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:33:18,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:33:18,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (1/1) ... [2024-12-02 14:33:18,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:33:18,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:33:18,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:33:18,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:33:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:33:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:33:18,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:33:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:33:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:33:18,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:33:18,529 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:33:18,531 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:33:18,680 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 14:33:18,681 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:33:18,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:33:18,692 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:33:18,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:18 BoogieIcfgContainer [2024-12-02 14:33:18,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:33:18,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:33:18,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:33:18,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:33:18,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:33:18" (1/3) ... [2024-12-02 14:33:18,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd92c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:18, skipping insertion in model container [2024-12-02 14:33:18,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:18" (2/3) ... [2024-12-02 14:33:18,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd92c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:18, skipping insertion in model container [2024-12-02 14:33:18,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:18" (3/3) ... [2024-12-02 14:33:18,704 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-54.i [2024-12-02 14:33:18,722 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:33:18,723 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-54.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:33:18,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:33:18,797 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f38355e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:33:18,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:33:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:33:18,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:33:18,809 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:18,810 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:18,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:18,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:18,817 INFO L85 PathProgramCache]: Analyzing trace with hash 696913717, now seen corresponding path program 1 times [2024-12-02 14:33:18,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:18,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106318030] [2024-12-02 14:33:18,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:18,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-12-02 14:33:19,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:19,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106318030] [2024-12-02 14:33:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106318030] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:33:19,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668302173] [2024-12-02 14:33:19,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:19,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:33:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:33:19,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:33:19,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:33:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:19,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:33:19,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:33:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-12-02 14:33:19,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:33:19,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668302173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:19,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:33:19,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:33:19,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342253789] [2024-12-02 14:33:19,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:19,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:33:19,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:19,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:33:19,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:33:19,143 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:33:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:19,160 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-12-02 14:33:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:33:19,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-12-02 14:33:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:19,167 INFO L225 Difference]: With dead ends: 61 [2024-12-02 14:33:19,167 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 14:33:19,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 57 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 14:33:19,172 INFO L435 NwaCegarLoop]: 39 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, 39 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 14:33:19,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 14:33:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-12-02 14:33:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:33:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-12-02 14:33:19,203 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 56 [2024-12-02 14:33:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:19,203 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-12-02 14:33:19,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:33:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-12-02 14:33:19,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:33:19,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:19,205 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:19,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:33:19,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 14:33:19,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:19,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:19,406 INFO L85 PathProgramCache]: Analyzing trace with hash -469856391, now seen corresponding path program 1 times [2024-12-02 14:33:19,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:19,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754896067] [2024-12-02 14:33:19,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:19,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 14:33:19,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:19,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754896067] [2024-12-02 14:33:19,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754896067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:19,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:19,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:33:19,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614018535] [2024-12-02 14:33:19,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:19,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:33:19,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:19,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:33:19,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:19,544 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:33:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:19,559 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2024-12-02 14:33:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:33:19,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2024-12-02 14:33:19,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:19,561 INFO L225 Difference]: With dead ends: 57 [2024-12-02 14:33:19,561 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 14:33:19,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:19,563 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:19,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:19,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 14:33:19,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-12-02 14:33:19,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:33:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2024-12-02 14:33:19,568 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 56 [2024-12-02 14:33:19,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:19,570 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2024-12-02 14:33:19,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:33:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-12-02 14:33:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:33:19,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:19,571 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:19,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:33:19,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:19,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash -412598089, now seen corresponding path program 1 times [2024-12-02 14:33:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:19,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787551885] [2024-12-02 14:33:19,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:19,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:33:19,616 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:33:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:33:19,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:33:19,662 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:33:19,663 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:33:19,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:33:19,667 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 14:33:19,698 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:33:19,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:33:19 BoogieIcfgContainer [2024-12-02 14:33:19,702 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:33:19,702 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:33:19,702 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:33:19,702 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:33:19,703 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:18" (3/4) ... [2024-12-02 14:33:19,704 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:33:19,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:33:19,705 INFO L158 Benchmark]: Toolchain (without parser) took 1637.24ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 97.3MB in the end (delta: 21.7MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-12-02 14:33:19,706 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:33:19,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.75ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:33:19,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.78ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:33:19,707 INFO L158 Benchmark]: Boogie Preprocessor took 38.14ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:33:19,707 INFO L158 Benchmark]: RCFGBuilder took 293.78ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 93.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:33:19,707 INFO L158 Benchmark]: TraceAbstraction took 1006.63ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 97.3MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:33:19,707 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 97.3MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:33:19,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.75ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.78ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.14ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 293.78ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 93.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1006.63ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 97.3MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 97.3MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryFLOATComparisonOperation at line 37, overapproximation of someBinaryFLOATComparisonOperation at line 62, overapproximation of someBinaryFLOATComparisonOperation at line 45, overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someBinaryFLOATComparisonOperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 999.25; [L23] float var_1_5 = 63.875; [L24] float var_1_6 = 25.05; [L25] signed long int var_1_7 = -4; [L26] float var_1_8 = 25.2; [L27] signed long int var_1_9 = 2; [L28] signed long int var_1_10 = 256; [L29] signed long int last_1_var_1_7 = -4; VAL [isInitial=0, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_5=511/8, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L66] isInitial = 1 [L67] FCALL initially() [L69] CALL updateLastVariables() [L59] last_1_var_1_7 = var_1_7 VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_5=511/8, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L69] RET updateLastVariables() [L70] CALL updateVariables() [L44] var_1_5 = __VERIFIER_nondet_float() [L45] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L45] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L46] var_1_6 = __VERIFIER_nondet_float() [L47] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L47] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L48] var_1_8 = __VERIFIER_nondet_float() [L49] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=2] [L49] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=2] [L50] CALL assume_abort_if_not(var_1_8 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=2] [L50] RET assume_abort_if_not(var_1_8 != 0.0F) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=2] [L51] var_1_9 = __VERIFIER_nondet_long() [L52] CALL assume_abort_if_not(var_1_9 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L52] RET assume_abort_if_not(var_1_9 >= -1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L53] CALL assume_abort_if_not(var_1_9 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L53] RET assume_abort_if_not(var_1_9 <= 1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L54] var_1_10 = __VERIFIER_nondet_long() [L55] CALL assume_abort_if_not(var_1_10 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L55] RET assume_abort_if_not(var_1_10 >= -1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L56] CALL assume_abort_if_not(var_1_10 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L56] RET assume_abort_if_not(var_1_10 <= 1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L70] RET updateVariables() [L71] CALL step() [L33] signed long int stepLocal_0 = last_1_var_1_7; VAL [isInitial=1, last_1_var_1_7=-4, stepLocal_0=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L34] COND FALSE !(last_1_var_1_7 < stepLocal_0) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=-4, var_1_9=-1073741823] [L37] COND TRUE (((((var_1_5 / var_1_8)) > (var_1_6)) ? ((var_1_5 / var_1_8)) : (var_1_6))) == var_1_1 [L38] var_1_7 = (var_1_9 + var_1_10) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=0, var_1_9=-1073741823] [L71] RET step() [L72] CALL, EXPR property() [L62-L63] return ((last_1_var_1_7 < last_1_var_1_7) ? (var_1_1 == ((float) (var_1_5 - var_1_6))) : 1) && (((((((var_1_5 / var_1_8)) > (var_1_6)) ? ((var_1_5 / var_1_8)) : (var_1_6))) == var_1_1) ? (var_1_7 == ((signed long int) (var_1_9 + var_1_10))) : (var_1_7 == ((signed long int) 50))) ; VAL [\result=0, isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=0, var_1_9=-1073741823] [L72] RET, EXPR property() [L72] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=0, var_1_9=-1073741823] [L19] reach_error() VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=1073741823, var_1_1=3997/4, var_1_7=0, var_1_9=-1073741823] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 109 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 76 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 322/336 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 14:33:19,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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_2a13829c-856a-4279-b290-b60228b09f73/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 a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:33:21,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:33:21,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 14:33:21,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:33:21,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:33:21,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:33:21,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:33:21,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:33:21,759 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:33:21,759 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:33:21,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:33:21,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:33:21,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:33:21,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:33:21,759 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:33:21,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:33:21,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:33:21,761 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:33:21,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:33:21,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:33:21,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:33:21,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:33:21,762 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_2a13829c-856a-4279-b290-b60228b09f73/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 -> a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a [2024-12-02 14:33:21,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:33:22,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:33:22,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:33:22,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:33:22,007 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:33:22,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2024-12-02 14:33:24,755 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/9c05710f9/5d901e196f8c4351bdad19f7f86c364b/FLAG1034938f8 [2024-12-02 14:33:24,935 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:33:24,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2024-12-02 14:33:24,945 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/9c05710f9/5d901e196f8c4351bdad19f7f86c364b/FLAG1034938f8 [2024-12-02 14:33:24,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/data/9c05710f9/5d901e196f8c4351bdad19f7f86c364b [2024-12-02 14:33:24,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:33:24,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:33:24,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:33:24,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:33:24,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:33:24,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:24" (1/1) ... [2024-12-02 14:33:24,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5155ee9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:24, skipping insertion in model container [2024-12-02 14:33:24,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:24" (1/1) ... [2024-12-02 14:33:24,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:33:25,138 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_2a13829c-856a-4279-b290-b60228b09f73/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2024-12-02 14:33:25,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:33:25,180 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:33:25,191 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_2a13829c-856a-4279-b290-b60228b09f73/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2024-12-02 14:33:25,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:33:25,218 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:33:25,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25 WrapperNode [2024-12-02 14:33:25,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:33:25,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:33:25,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:33:25,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:33:25,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,253 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2024-12-02 14:33:25,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:33:25,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:33:25,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:33:25,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:33:25,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,265 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,276 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 14:33:25,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,283 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:33:25,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:33:25,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:33:25,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:33:25,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (1/1) ... [2024-12-02 14:33:25,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:33:25,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:33:25,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:33:25,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:33:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:33:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 14:33:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:33:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:33:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:33:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:33:25,414 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:33:25,416 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:33:26,803 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 14:33:26,803 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:33:26,812 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:33:26,812 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:33:26,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:26 BoogieIcfgContainer [2024-12-02 14:33:26,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:33:26,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:33:26,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:33:26,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:33:26,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:33:24" (1/3) ... [2024-12-02 14:33:26,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71eb4682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:26, skipping insertion in model container [2024-12-02 14:33:26,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:25" (2/3) ... [2024-12-02 14:33:26,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71eb4682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:26, skipping insertion in model container [2024-12-02 14:33:26,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:26" (3/3) ... [2024-12-02 14:33:26,823 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-54.i [2024-12-02 14:33:26,838 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:33:26,839 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-54.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:33:26,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:33:26,899 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;@5adb4ffb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:33:26,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:33:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:33:26,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:33:26,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:26,910 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:26,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:26,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash 696913717, now seen corresponding path program 1 times [2024-12-02 14:33:26,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:33:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355787517] [2024-12-02 14:33:26,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:26,922 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 14:33:26,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:33:26,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:26,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:27,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:33:27,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:33:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 14:33:27,245 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:33:27,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:33:27,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355787517] [2024-12-02 14:33:27,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355787517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:27,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:27,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:33:27,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753993314] [2024-12-02 14:33:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:27,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:33:27,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:33:27,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:33:27,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:33:27,266 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:33:27,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:27,279 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-12-02 14:33:27,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:33:27,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-12-02 14:33:27,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:27,284 INFO L225 Difference]: With dead ends: 61 [2024-12-02 14:33:27,284 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 14:33:27,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 55 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 14:33:27,289 INFO L435 NwaCegarLoop]: 39 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, 39 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 14:33:27,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:27,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 14:33:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-12-02 14:33:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:33:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-12-02 14:33:27,323 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 56 [2024-12-02 14:33:27,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:27,323 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-12-02 14:33:27,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:33:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-12-02 14:33:27,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:33:27,325 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:27,325 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:27,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:27,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:27,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:27,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:27,527 INFO L85 PathProgramCache]: Analyzing trace with hash -469856391, now seen corresponding path program 1 times [2024-12-02 14:33:27,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:33:27,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265041367] [2024-12-02 14:33:27,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:27,528 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 14:33:27,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:33:27,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:27,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:27,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 14:33:27,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:33:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 14:33:27,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:33:27,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:33:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265041367] [2024-12-02 14:33:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265041367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:27,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:27,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:33:27,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129663090] [2024-12-02 14:33:27,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:27,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:33:27,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:33:27,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:33:27,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:27,895 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:33:28,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:33:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:28,950 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2024-12-02 14:33:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:33:28,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2024-12-02 14:33:28,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:28,967 INFO L225 Difference]: With dead ends: 57 [2024-12-02 14:33:28,967 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 14:33:28,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:28,968 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:28,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:33:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 14:33:28,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-12-02 14:33:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:33:28,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2024-12-02 14:33:28,973 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 56 [2024-12-02 14:33:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:28,974 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2024-12-02 14:33:28,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:33:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-12-02 14:33:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:33:28,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:28,975 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:28,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:29,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:29,176 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:29,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:29,176 INFO L85 PathProgramCache]: Analyzing trace with hash -412598089, now seen corresponding path program 1 times [2024-12-02 14:33:29,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:33:29,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069091470] [2024-12-02 14:33:29,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:29,177 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 14:33:29,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:33:29,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:29,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:33:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:29,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 14:33:29,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:33:42,598 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 14:34:22,476 WARN L286 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 14:34:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 14:34:37,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:34:37,546 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:34:37,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069091470] [2024-12-02 14:34:37,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069091470] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:37,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:37,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:37,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101253138] [2024-12-02 14:34:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:37,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:34:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:34:37,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:34:37,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:34:37,548 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:34:43,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:34:52,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:35:01,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:35:05,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:35:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:05,454 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2024-12-02 14:35:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:35:05,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2024-12-02 14:35:05,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:05,487 INFO L225 Difference]: With dead ends: 38 [2024-12-02 14:35:05,488 INFO L226 Difference]: Without dead ends: 36 [2024-12-02 14:35:05,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:35:05,488 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:05,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 126 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2024-12-02 14:35:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-12-02 14:35:05,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2024-12-02 14:35:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:35:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2024-12-02 14:35:05,494 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 56 [2024-12-02 14:35:05,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:05,494 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2024-12-02 14:35:05,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:35:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2024-12-02 14:35:05,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 14:35:05,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:05,495 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:05,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 14:35:05,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:35:05,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:05,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:05,696 INFO L85 PathProgramCache]: Analyzing trace with hash -410751047, now seen corresponding path program 1 times [2024-12-02 14:35:05,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:35:05,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031406079] [2024-12-02 14:35:05,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:05,697 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 14:35:05,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:35:05,699 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:35:05,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 14:35:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:05,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 14:35:05,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:36:04,809 WARN L286 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 14:36:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 14:36:22,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:36:22,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:36:22,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031406079] [2024-12-02 14:36:22,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031406079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:22,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:22,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:22,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035814303] [2024-12-02 14:36:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:22,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:22,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:36:22,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:22,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:22,991 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:36:25,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:36:29,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:36:49,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 14:36:49,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:49,436 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-12-02 14:36:49,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:36:49,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2024-12-02 14:36:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:49,466 INFO L225 Difference]: With dead ends: 36 [2024-12-02 14:36:49,466 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:36:49,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:36:49,467 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:49,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 132 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2024-12-02 14:36:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:36:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:36:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:49,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:36:49,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-12-02 14:36:49,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:49,469 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:36:49,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 14:36:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:36:49,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:36:49,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:36:49,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-12-02 14:36:49,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/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 14:36:49,676 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 14:36:49,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:36:49,695 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:36:49,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:36:49 BoogieIcfgContainer [2024-12-02 14:36:49,702 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:36:49,703 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:36:49,703 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:36:49,703 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:36:49,703 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:26" (3/4) ... [2024-12-02 14:36:49,705 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:36:49,709 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 14:36:49,712 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 14:36:49,712 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 14:36:49,712 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:36:49,712 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:36:49,787 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:36:49,788 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:36:49,788 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:36:49,789 INFO L158 Benchmark]: Toolchain (without parser) took 204823.35ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 69.6MB in the beginning and 65.9MB in the end (delta: 3.7MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-12-02 14:36:49,789 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:36:49,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.76ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 57.2MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:36:49,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.54ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 55.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:36:49,790 INFO L158 Benchmark]: Boogie Preprocessor took 37.57ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 54.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:36:49,790 INFO L158 Benchmark]: RCFGBuilder took 1520.46ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 42.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:36:49,790 INFO L158 Benchmark]: TraceAbstraction took 202887.05ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 41.7MB in the beginning and 69.7MB in the end (delta: -28.0MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2024-12-02 14:36:49,791 INFO L158 Benchmark]: Witness Printer took 85.22ms. Allocated memory is still 176.2MB. Free memory was 69.7MB in the beginning and 65.9MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:36:49,793 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.76ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 57.2MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.54ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 55.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.57ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 54.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1520.46ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 42.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 202887.05ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 41.7MB in the beginning and 69.7MB in the end (delta: -28.0MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * Witness Printer took 85.22ms. Allocated memory is still 176.2MB. Free memory was 69.7MB in the beginning and 65.9MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 202.8s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 55.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 34.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 367 SdHoareTripleChecker+Invalid, 33.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 217 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 150 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 145.2s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 19 NumberOfNonLiveVariables, 386 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 448/448 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 14:36:49,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13829c-856a-4279-b290-b60228b09f73/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE