./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd --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 b6dd2ed6c1bce1a10f9a63c051c029a066fa5b3cc478546a4f140edcb3bcb50c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:40:19,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:40:19,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:40:19,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:40:19,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:40:19,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:40:19,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:40:19,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:40:19,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:40:19,473 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:40:19,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:40:19,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:40:19,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:40:19,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:40:19,475 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:40:19,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:40:19,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:40:19,476 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:40:19,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:40:19,477 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:40:19,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:40:19,478 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:40:19,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:40:19,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:40:19,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:40:19,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:40:19,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:40:19,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:40:19,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:40:19,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:40:19,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:40:19,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:40:19,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:40:19,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:40:19,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:40:19,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:40:19,481 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd 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 -> b6dd2ed6c1bce1a10f9a63c051c029a066fa5b3cc478546a4f140edcb3bcb50c [2024-11-13 15:40:19,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:40:19,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:40:19,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:40:19,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:40:19,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:40:19,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i Unable to find full path for "g++" [2024-11-13 15:40:21,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:40:22,109 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:40:22,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i [2024-11-13 15:40:22,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data/7f67059b2/fe3ac7ece48849d093699d0436704667/FLAG294949117 [2024-11-13 15:40:22,135 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data/7f67059b2/fe3ac7ece48849d093699d0436704667 [2024-11-13 15:40:22,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:40:22,140 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:40:22,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:40:22,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:40:22,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:40:22,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fbfaa9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22, skipping insertion in model container [2024-11-13 15:40:22,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:40:22,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i[915,928] [2024-11-13 15:40:22,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:40:22,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:40:22,488 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i[915,928] [2024-11-13 15:40:22,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:40:22,569 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:40:22,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22 WrapperNode [2024-11-13 15:40:22,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:40:22,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:40:22,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:40:22,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:40:22,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,652 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-11-13 15:40:22,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:40:22,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:40:22,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:40:22,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:40:22,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,707 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:40:22,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:40:22,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:40:22,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:40:22,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:40:22,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (1/1) ... [2024-11-13 15:40:22,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:40:22,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:22,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:40:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:40:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:40:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:40:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:40:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:40:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:40:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:40:22,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:40:22,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:40:23,301 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 15:40:23,301 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:40:23,312 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:40:23,313 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:40:23,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:23 BoogieIcfgContainer [2024-11-13 15:40:23,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:40:23,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:40:23,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:40:23,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:40:23,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:40:22" (1/3) ... [2024-11-13 15:40:23,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c95cdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:40:23, skipping insertion in model container [2024-11-13 15:40:23,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:22" (2/3) ... [2024-11-13 15:40:23,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c95cdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:40:23, skipping insertion in model container [2024-11-13 15:40:23,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:23" (3/3) ... [2024-11-13 15:40:23,328 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-64.i [2024-11-13 15:40:23,349 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:40:23,351 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-64.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:40:23,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:40:23,447 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36def24c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:40:23,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:40:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:40:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 15:40:23,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:23,465 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:23,465 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:23,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1801240652, now seen corresponding path program 1 times [2024-11-13 15:40:23,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:23,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960376729] [2024-11-13 15:40:23,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:23,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:40:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:40:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:40:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:40:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:40:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:40:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:40:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 15:40:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:40:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 15:40:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:40:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:40:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 15:40:23,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:23,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960376729] [2024-11-13 15:40:23,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960376729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:23,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:23,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:40:23,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99587027] [2024-11-13 15:40:23,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:23,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:40:23,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:23,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:40:23,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:40:23,907 INFO L87 Difference]: Start difference. First operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:23,944 INFO L93 Difference]: Finished difference Result 103 states and 163 transitions. [2024-11-13 15:40:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:40:23,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-13 15:40:23,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:23,955 INFO L225 Difference]: With dead ends: 103 [2024-11-13 15:40:23,955 INFO L226 Difference]: Without dead ends: 48 [2024-11-13 15:40:23,960 INFO L431 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 [2024-11-13 15:40:23,964 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:23,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:40:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-13 15:40:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-13 15:40:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:40:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-11-13 15:40:24,014 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 82 [2024-11-13 15:40:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:24,015 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-13 15:40:24,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-11-13 15:40:24,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 15:40:24,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:24,019 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:24,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:40:24,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:24,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:24,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1885275444, now seen corresponding path program 1 times [2024-11-13 15:40:24,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:24,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345670614] [2024-11-13 15:40:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:24,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:40:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:40:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:40:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:40:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:40:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:40:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:40:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 15:40:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:40:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 15:40:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:40:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:40:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,077 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 15:40:25,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:25,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345670614] [2024-11-13 15:40:25,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345670614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:25,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:25,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:40:25,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077349570] [2024-11-13 15:40:25,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:25,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:40:25,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:40:25,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:40:25,081 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:40:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:25,523 INFO L93 Difference]: Finished difference Result 153 states and 216 transitions. [2024-11-13 15:40:25,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:40:25,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 82 [2024-11-13 15:40:25,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:25,528 INFO L225 Difference]: With dead ends: 153 [2024-11-13 15:40:25,528 INFO L226 Difference]: Without dead ends: 108 [2024-11-13 15:40:25,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:40:25,533 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 106 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:25,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 230 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:40:25,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-13 15:40:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 78. [2024-11-13 15:40:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:40:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2024-11-13 15:40:25,574 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 82 [2024-11-13 15:40:25,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:25,574 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2024-11-13 15:40:25,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:40:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2024-11-13 15:40:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 15:40:25,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:25,578 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:25,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:40:25,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:25,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:25,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1083813585, now seen corresponding path program 1 times [2024-11-13 15:40:25,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:25,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013547490] [2024-11-13 15:40:25,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:25,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:40:25,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885999231] [2024-11-13 15:40:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:25,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:25,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:25,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:25,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:40:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:25,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:40:25,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:40:26,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 15:40:26,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013547490] [2024-11-13 15:40:26,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:40:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885999231] [2024-11-13 15:40:26,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885999231] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:40:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-13 15:40:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478569874] [2024-11-13 15:40:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:26,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:40:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:40:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:40:26,660 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:40:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:27,273 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2024-11-13 15:40:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:40:27,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2024-11-13 15:40:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:27,280 INFO L225 Difference]: With dead ends: 147 [2024-11-13 15:40:27,280 INFO L226 Difference]: Without dead ends: 88 [2024-11-13 15:40:27,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:40:27,286 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:27,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 146 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:40:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-13 15:40:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 78. [2024-11-13 15:40:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 54 states have internal predecessors, (66), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:40:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2024-11-13 15:40:27,328 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 83 [2024-11-13 15:40:27,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:27,329 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2024-11-13 15:40:27,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:40:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2024-11-13 15:40:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 15:40:27,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:27,331 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:27,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:40:27,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:27,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:27,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:27,533 INFO L85 PathProgramCache]: Analyzing trace with hash 691193777, now seen corresponding path program 1 times [2024-11-13 15:40:27,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:27,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031571136] [2024-11-13 15:40:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:27,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:40:27,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375771997] [2024-11-13 15:40:27,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:27,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:27,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:27,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:40:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:40:27,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:40:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:40:27,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:40:27,821 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:40:27,823 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:40:27,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:40:28,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:28,032 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:40:28,125 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:40:28,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:40:28 BoogieIcfgContainer [2024-11-13 15:40:28,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:40:28,132 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:40:28,134 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:40:28,134 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:40:28,135 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:23" (3/4) ... [2024-11-13 15:40:28,139 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:40:28,140 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:40:28,142 INFO L158 Benchmark]: Toolchain (without parser) took 6001.53ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 92.8MB in the end (delta: 26.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-11-13 15:40:28,143 INFO L158 Benchmark]: CDTParser took 0.99ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:40:28,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.92ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 106.1MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:40:28,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.22ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 103.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:40:28,145 INFO L158 Benchmark]: Boogie Preprocessor took 72.66ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 100.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:40:28,146 INFO L158 Benchmark]: RCFGBuilder took 587.38ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 81.5MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:40:28,146 INFO L158 Benchmark]: TraceAbstraction took 4815.27ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 92.8MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:40:28,147 INFO L158 Benchmark]: Witness Printer took 7.98ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 92.8MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:40:28,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.92ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 106.1MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.22ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 103.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.66ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 100.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 587.38ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 81.5MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4815.27ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 92.8MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.98ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 92.8MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 64. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] unsigned long int var_1_3 = 2941876006; [L24] double var_1_5 = 127.422; [L25] unsigned short int var_1_6 = 10; [L26] unsigned char var_1_7 = 1; [L27] unsigned long int var_1_9 = 4; [L28] unsigned short int var_1_11 = 44699; [L29] signed short int var_1_13 = 2; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 16; [L32] float var_1_17 = 8.125; VAL [isInitial=0, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2941876006, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L86] isInitial = 1 [L87] FCALL initially() [L88] int k_loop; [L89] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2941876006, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L89] COND TRUE k_loop < 1 [L90] FCALL updateLastVariables() [L91] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_ulong() [L61] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L61] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L63] var_1_5 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=1, var_1_9=4] [L64] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=1, var_1_9=4] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_9=4] [L66] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_9=4] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=4] [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=4] [L68] var_1_9 = __VERIFIER_nondet_ulong() [L69] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0] [L69] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0] [L70] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0] [L70] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0] [L71] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L71] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L72] var_1_11 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L73] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L74] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L75] var_1_16 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L76] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L77] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=6442450943, var_1_6=10, var_1_7=0, var_1_9=1] [L91] RET updateVariables() [L92] CALL step() [L36] var_1_15 = var_1_16 [L37] var_1_17 = var_1_5 VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=6442450943, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1] [L38] EXPR var_1_15 & var_1_15 VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=6442450943, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1] [L38] unsigned long int stepLocal_2 = var_1_3 * (var_1_15 & var_1_15); [L39] COND FALSE !(\read(var_1_7)) [L46] var_1_6 = (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1) VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L48] var_1_13 = var_1_15 [L49] signed long int stepLocal_1 = var_1_6 * var_1_15; [L50] unsigned char stepLocal_0 = var_1_15; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L51] COND TRUE stepLocal_0 <= (var_1_3 - var_1_6) VAL [isInitial=1, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L52] COND FALSE !(var_1_3 < stepLocal_1) [L55] var_1_1 = var_1_5 VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L92] RET step() [L93] CALL, EXPR property() [L82] EXPR ((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1)))) VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L82-L83] return (((((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1))))) && (var_1_13 == ((signed short int) var_1_15))) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((float) var_1_5)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=6442450943, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 447 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 208 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 326 ConstructedInterpolants, 3 QuantifiedInterpolants, 790 SizeOfPredicates, 4 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1023/1056 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 [2024-11-13 15:40:28,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd --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 b6dd2ed6c1bce1a10f9a63c051c029a066fa5b3cc478546a4f140edcb3bcb50c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:40:31,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:40:31,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:40:31,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:40:31,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:40:31,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:40:31,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:40:31,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:40:31,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:40:31,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:40:31,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:40:31,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:40:31,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:40:31,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:40:31,403 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:40:31,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:40:31,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:40:31,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:40:31,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:40:31,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:40:31,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:40:31,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:40:31,408 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd 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 -> b6dd2ed6c1bce1a10f9a63c051c029a066fa5b3cc478546a4f140edcb3bcb50c [2024-11-13 15:40:31,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:40:31,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:40:31,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:40:31,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:40:31,795 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:40:31,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i Unable to find full path for "g++" [2024-11-13 15:40:33,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:40:34,110 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:40:34,119 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i [2024-11-13 15:40:34,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data/33d72cdc6/7affad80fc58462c94e943fc9c3d908a/FLAGf640d52a5 [2024-11-13 15:40:34,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/data/33d72cdc6/7affad80fc58462c94e943fc9c3d908a [2024-11-13 15:40:34,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:40:34,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:40:34,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:40:34,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:40:34,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:40:34,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ebe7064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34, skipping insertion in model container [2024-11-13 15:40:34,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:40:34,413 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i[915,928] [2024-11-13 15:40:34,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:40:34,509 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:40:34,524 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-64.i[915,928] [2024-11-13 15:40:34,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:40:34,591 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:40:34,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34 WrapperNode [2024-11-13 15:40:34,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:40:34,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:40:34,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:40:34,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:40:34,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,643 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-13 15:40:34,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:40:34,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:40:34,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:40:34,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:40:34,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,689 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:40:34,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:40:34,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:40:34,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:40:34,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:40:34,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (1/1) ... [2024-11-13 15:40:34,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:40:34,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:34,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:40:34,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:40:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:40:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:40:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:40:34,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:40:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:40:34,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:40:34,893 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:40:34,896 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:40:35,776 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-13 15:40:35,776 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:40:35,787 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:40:35,788 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:40:35,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:35 BoogieIcfgContainer [2024-11-13 15:40:35,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:40:35,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:40:35,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:40:35,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:40:35,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:40:34" (1/3) ... [2024-11-13 15:40:35,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0797fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:40:35, skipping insertion in model container [2024-11-13 15:40:35,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:34" (2/3) ... [2024-11-13 15:40:35,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0797fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:40:35, skipping insertion in model container [2024-11-13 15:40:35,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:35" (3/3) ... [2024-11-13 15:40:35,800 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-64.i [2024-11-13 15:40:35,817 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:40:35,819 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-64.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:40:35,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:40:35,887 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e1bd70d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:40:35,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:40:35,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:40:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:40:35,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:35,902 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:35,902 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:35,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:35,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2047350792, now seen corresponding path program 1 times [2024-11-13 15:40:35,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:40:35,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659078714] [2024-11-13 15:40:35,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:35,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:40:35,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:40:35,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:40:35,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 15:40:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:36,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:40:36,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-13 15:40:36,275 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:40:36,278 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:40:36,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659078714] [2024-11-13 15:40:36,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659078714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:36,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:36,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:40:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639454074] [2024-11-13 15:40:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:36,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:40:36,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:40:36,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:40:36,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:40:36,312 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:36,337 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2024-11-13 15:40:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:40:36,339 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-13 15:40:36,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:36,345 INFO L225 Difference]: With dead ends: 81 [2024-11-13 15:40:36,345 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 15:40:36,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:40:36,351 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:36,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:40:36,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 15:40:36,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-13 15:40:36,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:40:36,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-13 15:40:36,390 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 78 [2024-11-13 15:40:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:36,391 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-13 15:40:36,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:36,391 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-13 15:40:36,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:40:36,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:36,395 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:36,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/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)] Forceful destruction successful, exit code 0 [2024-11-13 15:40:36,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:40:36,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:36,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1433562488, now seen corresponding path program 1 times [2024-11-13 15:40:36,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:40:36,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830722711] [2024-11-13 15:40:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:36,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:40:36,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:40:36,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:40:36,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 15:40:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:36,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:40:36,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:40:37,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:37,544 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:40:37,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830722711] [2024-11-13 15:40:37,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830722711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:37,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271993162] [2024-11-13 15:40:37,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:37,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:37,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:37,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:37,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:40:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:37,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:40:37,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:40:38,080 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:38,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271993162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:38,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:40:38,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-13 15:40:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344220859] [2024-11-13 15:40:38,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:40:38,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:40:38,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:40:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:40:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:40:38,147 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:39,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:39,615 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2024-11-13 15:40:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:40:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-13 15:40:39,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:39,631 INFO L225 Difference]: With dead ends: 90 [2024-11-13 15:40:39,632 INFO L226 Difference]: Without dead ends: 55 [2024-11-13 15:40:39,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:40:39,638 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:39,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 89 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:40:39,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-13 15:40:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2024-11-13 15:40:39,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:40:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2024-11-13 15:40:39,662 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 78 [2024-11-13 15:40:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:39,662 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2024-11-13 15:40:39,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2024-11-13 15:40:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 15:40:39,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:39,665 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:39,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:40:39,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:40:40,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:40,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:40,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1255203852, now seen corresponding path program 1 times [2024-11-13 15:40:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:40:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641777439] [2024-11-13 15:40:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:40,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:40:40,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:40:40,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:40:40,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 15:40:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:40,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:40:40,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:40:40,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:41,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:40:41,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641777439] [2024-11-13 15:40:41,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641777439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:41,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421739189] [2024-11-13 15:40:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:41,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:41,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:41,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:41,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:40:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:41,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:40:41,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:40:41,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:42,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421739189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:42,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:40:42,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2024-11-13 15:40:42,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291068909] [2024-11-13 15:40:42,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:40:42,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:40:42,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:40:42,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:40:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:40:42,098 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:44,365 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2024-11-13 15:40:44,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:40:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-13 15:40:44,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:44,368 INFO L225 Difference]: With dead ends: 94 [2024-11-13 15:40:44,368 INFO L226 Difference]: Without dead ends: 55 [2024-11-13 15:40:44,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:40:44,369 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 31 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:44,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 116 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:40:44,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-13 15:40:44,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2024-11-13 15:40:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:40:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2024-11-13 15:40:44,385 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 79 [2024-11-13 15:40:44,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:44,386 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2024-11-13 15:40:44,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:40:44,386 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2024-11-13 15:40:44,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 15:40:44,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:44,388 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:44,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:40:44,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 15:40:44,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:40:44,792 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:44,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:44,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1257050894, now seen corresponding path program 1 times [2024-11-13 15:40:44,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:40:44,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283927429] [2024-11-13 15:40:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:44,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:40:44,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:40:44,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:40:44,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/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 (7)] Waiting until timeout for monitored process [2024-11-13 15:40:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:44,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 15:40:44,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-13 15:41:17,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:42:46,548 WARN L286 SmtUtils]: Spent 12.98s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:43:36,245 WARN L286 SmtUtils]: Spent 12.31s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:44:50,594 WARN L286 SmtUtils]: Spent 11.78s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:45:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 15:45:44,849 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:45:44,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283927429] [2024-11-13 15:45:44,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283927429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:44,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:45:44,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-13 15:45:44,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120064225] [2024-11-13 15:45:44,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:44,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 15:45:44,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:45:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 15:45:44,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:45:44,852 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 15:45:46,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:45:53,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:45:54,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:03,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:05,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:14,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:17,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:19,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:21,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:23,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:25,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:28,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:29,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:31,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:33,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:35,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:37,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:40,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:42,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:45,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:48,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:52,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:54,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:56,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:46:58,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:00,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:04,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:06,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:08,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:11,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:13,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:20,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:36,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:43,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:45,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:47:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:55,675 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2024-11-13 15:47:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 15:47:55,682 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 79 [2024-11-13 15:47:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:55,683 INFO L225 Difference]: With dead ends: 83 [2024-11-13 15:47:55,683 INFO L226 Difference]: Without dead ends: 81 [2024-11-13 15:47:55,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 206.3s TimeCoverageRelationStatistics Valid=267, Invalid=725, Unknown=0, NotChecked=0, Total=992 [2024-11-13 15:47:55,685 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:55,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 211 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 87.5s Time] [2024-11-13 15:47:55,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-13 15:47:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2024-11-13 15:47:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:47:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2024-11-13 15:47:55,698 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 79 [2024-11-13 15:47:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:55,698 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2024-11-13 15:47:55,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 15:47:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2024-11-13 15:47:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 15:47:55,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:55,700 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:47:55,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/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 (7)] Ended with exit code 0 [2024-11-13 15:47:55,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:47:55,901 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:47:55,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:55,901 INFO L85 PathProgramCache]: Analyzing trace with hash -236501455, now seen corresponding path program 1 times [2024-11-13 15:47:55,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:47:55,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076085001] [2024-11-13 15:47:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:55,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:47:55,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:47:55,904 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:47:55,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/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 (8)] Waiting until timeout for monitored process [2024-11-13 15:47:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:56,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 15:47:56,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:48:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 170 proven. 36 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-13 15:48:43,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:49:41,595 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:52:06,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:52:06,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076085001] [2024-11-13 15:52:06,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076085001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:52:06,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989358933] [2024-11-13 15:52:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:06,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:52:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:52:06,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:52:06,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_224934a6-9ef2-4384-9414-dd568b55cd82/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:52:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:07,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 15:52:07,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:54:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 166 proven. 60 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 15:54:01,815 INFO L311 TraceCheckSpWp]: Computing backward predicates...