./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme --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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:15,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:15,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:42:15,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:15,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:15,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:15,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:15,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:15,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:15,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:15,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:15,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:15,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:15,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:15,468 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:15,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:15,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:15,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:15,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:15,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:15,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:15,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:15,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:15,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:15,472 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:15,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:15,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:15,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:15,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:15,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:15,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:15,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:15,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:15,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:15,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:15,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:15,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:15,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:15,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:15,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:15,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:15,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:15,481 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2023-11-26 10:42:15,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:15,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:15,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:15,817 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:15,818 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:15,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-26 10:42:18,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:19,129 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:19,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-26 10:42:19,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data/ad8504df6/0b21c766863448aaa41673e7fa151e73/FLAGa6dbf97c1 [2023-11-26 10:42:19,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data/ad8504df6/0b21c766863448aaa41673e7fa151e73 [2023-11-26 10:42:19,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:19,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:19,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:19,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:19,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:19,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6beef453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19, skipping insertion in model container [2023-11-26 10:42:19,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,205 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:19,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-26 10:42:19,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:19,430 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:19,444 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-26 10:42:19,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:19,478 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:19,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19 WrapperNode [2023-11-26 10:42:19,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:19,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:19,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:19,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:19,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,540 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-26 10:42:19,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:19,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:19,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:19,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:19,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,573 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]. [2023-11-26 10:42:19,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:19,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:19,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:19,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:19,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (1/1) ... [2023-11-26 10:42:19,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:19,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:19,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:19,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:42:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:19,867 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:19,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:20,134 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:20,192 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:20,192 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:42:20,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:20 BoogieIcfgContainer [2023-11-26 10:42:20,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:20,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:20,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:20,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:20,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:19" (1/3) ... [2023-11-26 10:42:20,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10914d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:20, skipping insertion in model container [2023-11-26 10:42:20,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:19" (2/3) ... [2023-11-26 10:42:20,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10914d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:20, skipping insertion in model container [2023-11-26 10:42:20,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:20" (3/3) ... [2023-11-26 10:42:20,211 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2023-11-26 10:42:20,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:20,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:42:20,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:20,301 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@f748afb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:20,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:42:20,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:42:20,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 10:42:20,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:20,318 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:20,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:20,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:20,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2136870077, now seen corresponding path program 1 times [2023-11-26 10:42:20,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:20,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148549014] [2023-11-26 10:42:20,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:20,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:42:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:42:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:42:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:42:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 10:42:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:42:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-26 10:42:20,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:20,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148549014] [2023-11-26 10:42:20,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148549014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:20,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:20,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:20,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797887415] [2023-11-26 10:42:20,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:20,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:20,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:20,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:20,690 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 10:42:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:20,754 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2023-11-26 10:42:20,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-26 10:42:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:20,767 INFO L225 Difference]: With dead ends: 43 [2023-11-26 10:42:20,770 INFO L226 Difference]: Without dead ends: 21 [2023-11-26 10:42:20,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:20,785 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:20,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:20,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-26 10:42:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-26 10:42:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:42:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-11-26 10:42:20,852 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 39 [2023-11-26 10:42:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:20,852 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-11-26 10:42:20,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 10:42:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-26 10:42:20,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 10:42:20,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:20,856 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:20,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:42:20,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:20,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:20,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1882385917, now seen corresponding path program 1 times [2023-11-26 10:42:20,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:20,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398228973] [2023-11-26 10:42:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:20,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:21,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:21,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:21,210 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:21,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:42:21,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:42:21,219 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 10:42:21,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:42:21,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:42:21 BoogieIcfgContainer [2023-11-26 10:42:21,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:42:21,303 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:42:21,303 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:42:21,304 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:42:21,304 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:20" (3/4) ... [2023-11-26 10:42:21,307 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:42:21,308 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:42:21,309 INFO L158 Benchmark]: Toolchain (without parser) took 2149.26ms. Allocated memory is still 136.3MB. Free memory was 102.9MB in the beginning and 61.7MB in the end (delta: 41.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-26 10:42:21,310 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:21,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.01ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 91.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:42:21,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.20ms. Allocated memory is still 136.3MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:21,312 INFO L158 Benchmark]: Boogie Preprocessor took 51.45ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:21,313 INFO L158 Benchmark]: RCFGBuilder took 597.19ms. Allocated memory is still 136.3MB. Free memory was 87.2MB in the beginning and 99.5MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:42:21,314 INFO L158 Benchmark]: TraceAbstraction took 1106.63ms. Allocated memory is still 136.3MB. Free memory was 98.8MB in the beginning and 62.5MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-26 10:42:21,314 INFO L158 Benchmark]: Witness Printer took 5.19ms. Allocated memory is still 136.3MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:21,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.01ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 91.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.20ms. Allocated memory is still 136.3MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.45ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.19ms. Allocated memory is still 136.3MB. Free memory was 87.2MB in the beginning and 99.5MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1106.63ms. Allocated memory is still 136.3MB. Free memory was 98.8MB in the beginning and 62.5MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 5.19ms. Allocated memory is still 136.3MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 4; [L23] signed char var_1_4 = -1; [L24] signed char var_1_5 = 100; [L25] signed long int var_1_6 = 1000; [L26] double var_1_7 = 4.5; [L27] unsigned char var_1_8 = 1; [L28] unsigned char var_1_9 = 0; [L29] signed long int var_1_10 = 256; [L30] signed char last_1_var_1_1 = 4; [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] CALL updateLastVariables() [L55] last_1_var_1_1 = var_1_1 [L65] RET updateLastVariables() [L66] CALL updateVariables() [L44] var_1_4 = __VERIFIER_nondet_char() [L45] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L45] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L47] var_1_5 = __VERIFIER_nondet_char() [L48] CALL assume_abort_if_not(var_1_5 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L48] RET assume_abort_if_not(var_1_5 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L50] var_1_9 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L51] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L52] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L52] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L66] RET updateVariables() [L67] CALL step() [L34] var_1_7 = 199.5 [L35] var_1_8 = var_1_9 [L36] var_1_10 = var_1_5 [L37] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=126, var_1_10=126, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L38] COND TRUE stepLocal_0 >= last_1_var_1_1 [L39] var_1_1 = (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=126, var_1_10=126, var_1_1=125, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L41] var_1_6 = ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1))) [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (((((var_1_10 >= last_1_var_1_1) ? (var_1_1 == ((signed char) (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) : 1) && (var_1_6 == ((signed long int) ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1)))))) && (var_1_7 == ((double) 199.5))) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((signed long int) var_1_5)) ; [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=4, var_1_10=126, var_1_1=125, var_1_4=125, var_1_5=126, var_1_6=125, var_1_7=399/2, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=4, var_1_10=126, var_1_1=125, var_1_4=125, var_1_5=126, var_1_6=125, var_1_7=399/2, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 6, 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, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 60/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 10:42:21,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme --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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:24,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:24,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:42:24,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:24,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:24,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:24,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:24,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:24,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:24,578 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:24,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:24,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:24,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:24,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:24,581 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:24,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:24,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:24,582 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:24,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:24,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:24,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:24,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:24,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:24,585 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:42:24,585 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:42:24,586 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:42:24,586 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:24,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:24,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:24,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:24,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:24,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:24,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:24,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:24,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:24,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:24,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:24,592 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:42:24,592 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:42:24,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:24,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:24,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:24,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:24,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:24,594 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:42:24,594 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2023-11-26 10:42:25,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:25,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:25,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:25,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:25,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:25,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-26 10:42:28,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:28,580 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:28,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-26 10:42:28,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data/b4120ea9e/2c9f4b379d4c48ad8a3231ca19c97888/FLAGa43cdc234 [2023-11-26 10:42:28,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/data/b4120ea9e/2c9f4b379d4c48ad8a3231ca19c97888 [2023-11-26 10:42:28,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:28,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:28,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:28,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:28,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:28,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:28,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5370d0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28, skipping insertion in model container [2023-11-26 10:42:28,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:28,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:28,835 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-26 10:42:28,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:28,882 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:28,897 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-26 10:42:28,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:28,933 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:28,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28 WrapperNode [2023-11-26 10:42:28,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:28,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:28,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:28,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:28,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:28,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:28,975 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2023-11-26 10:42:28,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:28,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:28,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:28,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:29,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,021 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]. [2023-11-26 10:42:29,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:29,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:29,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:29,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:29,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (1/1) ... [2023-11-26 10:42:29,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:29,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:42:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:42:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:42:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:29,206 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:29,209 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:29,506 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:29,586 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:29,586 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:42:29,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:29 BoogieIcfgContainer [2023-11-26 10:42:29,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:29,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:29,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:29,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:29,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:28" (1/3) ... [2023-11-26 10:42:29,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c21142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:29, skipping insertion in model container [2023-11-26 10:42:29,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:28" (2/3) ... [2023-11-26 10:42:29,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c21142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:29, skipping insertion in model container [2023-11-26 10:42:29,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:29" (3/3) ... [2023-11-26 10:42:29,610 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2023-11-26 10:42:29,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:29,632 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:42:29,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:29,707 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@18a77915, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:29,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:42:29,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:42:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 10:42:29,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:29,725 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:29,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:29,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:29,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2136870077, now seen corresponding path program 1 times [2023-11-26 10:42:29,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:42:29,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035432185] [2023-11-26 10:42:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:29,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:42:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:42:29,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 10:42:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:29,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:42:29,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-26 10:42:29,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:29,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:42:29,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035432185] [2023-11-26 10:42:29,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035432185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:29,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:29,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:29,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791884082] [2023-11-26 10:42:30,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:30,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:42:30,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:30,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:30,055 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 10:42:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:30,097 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2023-11-26 10:42:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:30,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-11-26 10:42:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:30,108 INFO L225 Difference]: With dead ends: 43 [2023-11-26 10:42:30,109 INFO L226 Difference]: Without dead ends: 21 [2023-11-26 10:42:30,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:30,117 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:30,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-26 10:42:30,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-26 10:42:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:42:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-11-26 10:42:30,163 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 39 [2023-11-26 10:42:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:30,164 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-11-26 10:42:30,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 10:42:30,165 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-26 10:42:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 10:42:30,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:30,169 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:30,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:42:30,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:42:30,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:30,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:30,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1882385917, now seen corresponding path program 1 times [2023-11-26 10:42:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:42:30,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136556922] [2023-11-26 10:42:30,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:30,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:42:30,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:42:30,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:42:30,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 10:42:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:10,796 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-26 10:43:10,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:10,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:43:10,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136556922] [2023-11-26 10:43:10,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136556922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:10,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:10,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:10,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074261589] [2023-11-26 10:43:10,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:10,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:10,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:43:10,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:10,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:10,802 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 10:43:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:11,015 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2023-11-26 10:43:11,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:11,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-11-26 10:43:11,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:11,018 INFO L225 Difference]: With dead ends: 35 [2023-11-26 10:43:11,018 INFO L226 Difference]: Without dead ends: 33 [2023-11-26 10:43:11,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:11,021 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:11,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 77 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-26 10:43:11,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2023-11-26 10:43:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 10:43:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-26 10:43:11,035 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 39 [2023-11-26 10:43:11,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:11,036 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-26 10:43:11,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 10:43:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-26 10:43:11,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 10:43:11,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:11,039 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:11,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-26 10:43:11,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:43:11,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:11,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1882326335, now seen corresponding path program 1 times [2023-11-26 10:43:11,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:11,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904315115] [2023-11-26 10:43:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:43:11,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:11,245 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:43:11,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796171c0-5d36-4be6-aaa7-93a47af356a8/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 10:43:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:11,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:43:11,308 INFO L285 TraceCheckSpWp]: Computing forward predicates...