./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl --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 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:17,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:17,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:17,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:17,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:17,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:17,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:17,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:17,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:17,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:17,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:17,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:17,475 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:17,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:17,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:17,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:17,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:17,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:17,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:17,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:17,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:17,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:17,484 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:17,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:17,485 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:17,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:17,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:17,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:17,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:17,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:17,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:17,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:17,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:17,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:17,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:17,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:17,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:17,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:17,494 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:17,495 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 [2023-11-12 02:15:17,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:17,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:17,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:17,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:17,886 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:17,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 02:15:21,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:21,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:21,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 02:15:21,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data/e01fdbe4b/f32c366a736941469ef4c09d2208bace/FLAGfeb47da67 [2023-11-12 02:15:21,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data/e01fdbe4b/f32c366a736941469ef4c09d2208bace [2023-11-12 02:15:21,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:21,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:21,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:21,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:21,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:21,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:21" (1/1) ... [2023-11-12 02:15:21,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99456c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:21, skipping insertion in model container [2023-11-12 02:15:21,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:21" (1/1) ... [2023-11-12 02:15:21,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:21,896 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 02:15:21,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:21,966 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:21,980 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 02:15:22,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:22,035 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:22,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22 WrapperNode [2023-11-12 02:15:22,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:22,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:22,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:22,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:22,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,095 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-11-12 02:15:22,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:22,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:22,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:22,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:22,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:22,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:22,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:22,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:22,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (1/1) ... [2023-11-12 02:15:22,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:22,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:22,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:22,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:15:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:15:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:22,395 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:22,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:22,790 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:22,799 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:22,799 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:22,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:22 BoogieIcfgContainer [2023-11-12 02:15:22,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:22,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:22,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:22,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:21" (1/3) ... [2023-11-12 02:15:22,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239d0074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:22, skipping insertion in model container [2023-11-12 02:15:22,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:22" (2/3) ... [2023-11-12 02:15:22,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239d0074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:22, skipping insertion in model container [2023-11-12 02:15:22,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:22" (3/3) ... [2023-11-12 02:15:22,814 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-37.i [2023-11-12 02:15:22,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:22,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:22,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:22,898 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1201cae5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:22,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:22,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:22,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 02:15:22,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:22,918 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:22,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:22,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:22,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1852314810, now seen corresponding path program 1 times [2023-11-12 02:15:22,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:22,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629888217] [2023-11-12 02:15:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:23,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629888217] [2023-11-12 02:15:23,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:15:23,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129079920] [2023-11-12 02:15:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:23,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:23,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:23,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:23,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:15:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:15:23,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:23,657 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-12 02:15:23,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:23,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129079920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:23,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:23,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:23,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444851196] [2023-11-12 02:15:23,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:23,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:23,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:23,779 INFO L87 Difference]: Start difference. First operand has 55 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:23,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:23,816 INFO L93 Difference]: Finished difference Result 103 states and 173 transitions. [2023-11-12 02:15:23,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:23,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2023-11-12 02:15:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:23,834 INFO L225 Difference]: With dead ends: 103 [2023-11-12 02:15:23,835 INFO L226 Difference]: Without dead ends: 51 [2023-11-12 02:15:23,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:23,841 INFO L413 NwaCegarLoop]: 75 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, 75 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 [2023-11-12 02:15:23,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-12 02:15:23,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-12 02:15:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2023-11-12 02:15:23,898 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 100 [2023-11-12 02:15:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:23,899 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 75 transitions. [2023-11-12 02:15:23,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2023-11-12 02:15:23,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 02:15:23,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:23,906 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:23,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:24,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:15:24,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:24,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash 205773704, now seen corresponding path program 1 times [2023-11-12 02:15:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:24,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850673417] [2023-11-12 02:15:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:24,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:24,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:24,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380894584] [2023-11-12 02:15:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:24,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:24,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:24,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:24,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:15:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:24,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:15:24,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 235 proven. 60 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-11-12 02:15:25,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-12 02:15:25,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:25,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850673417] [2023-11-12 02:15:25,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:25,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380894584] [2023-11-12 02:15:25,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380894584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:15:25,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:15:25,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-12 02:15:25,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538007566] [2023-11-12 02:15:25,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:25,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:15:25,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:15:25,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:15:25,933 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (29), 4 states have call predecessors, (29), 8 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-12 02:15:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:26,609 INFO L93 Difference]: Finished difference Result 115 states and 160 transitions. [2023-11-12 02:15:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 02:15:26,610 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (29), 4 states have call predecessors, (29), 8 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) Word has length 100 [2023-11-12 02:15:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:26,612 INFO L225 Difference]: With dead ends: 115 [2023-11-12 02:15:26,612 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 02:15:26,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=265, Invalid=605, Unknown=0, NotChecked=0, Total=870 [2023-11-12 02:15:26,615 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 122 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:26,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 173 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:15:26,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 02:15:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2023-11-12 02:15:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2023-11-12 02:15:26,634 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 100 [2023-11-12 02:15:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:26,635 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2023-11-12 02:15:26,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (29), 4 states have call predecessors, (29), 8 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-12 02:15:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2023-11-12 02:15:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 02:15:26,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:26,638 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:26,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:26,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:26,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:26,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:26,846 INFO L85 PathProgramCache]: Analyzing trace with hash 463939142, now seen corresponding path program 1 times [2023-11-12 02:15:26,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997079665] [2023-11-12 02:15:26,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:26,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:26,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815840987] [2023-11-12 02:15:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:26,941 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:26,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:15:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:27,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-12 02:15:27,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 234 proven. 42 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:15:28,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:28,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:28,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997079665] [2023-11-12 02:15:28,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:28,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815840987] [2023-11-12 02:15:28,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815840987] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:28,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:28,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-12 02:15:28,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85935902] [2023-11-12 02:15:28,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:28,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:28,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:15:28,412 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:28,506 INFO L93 Difference]: Finished difference Result 165 states and 217 transitions. [2023-11-12 02:15:28,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:28,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2023-11-12 02:15:28,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:28,511 INFO L225 Difference]: With dead ends: 165 [2023-11-12 02:15:28,511 INFO L226 Difference]: Without dead ends: 105 [2023-11-12 02:15:28,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:15:28,514 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 69 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:28,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 251 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-12 02:15:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 64. [2023-11-12 02:15:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 84 transitions. [2023-11-12 02:15:28,539 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 84 transitions. Word has length 100 [2023-11-12 02:15:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:28,540 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 84 transitions. [2023-11-12 02:15:28,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:28,541 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 84 transitions. [2023-11-12 02:15:28,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 02:15:28,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:28,544 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:28,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:28,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:28,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:28,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1143997512, now seen corresponding path program 1 times [2023-11-12 02:15:28,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:28,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194509591] [2023-11-12 02:15:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:28,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:28,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291753190] [2023-11-12 02:15:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:28,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:28,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:28,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:28,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:15:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:15:29,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:15:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:15:29,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:15:29,401 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:15:29,403 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:15:29,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:29,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:29,617 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:15:29,622 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:15:29,724 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:15:29,736 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:15:29,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:15:29 BoogieIcfgContainer [2023-11-12 02:15:29,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:15:29,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:15:29,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:15:29,781 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:15:29,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:22" (3/4) ... [2023-11-12 02:15:29,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:15:29,786 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:15:29,788 INFO L158 Benchmark]: Toolchain (without parser) took 8150.45ms. Allocated memory was 138.4MB in the beginning and 234.9MB in the end (delta: 96.5MB). Free memory was 77.2MB in the beginning and 111.5MB in the end (delta: -34.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2023-11-12 02:15:29,788 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 103.9MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:29,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.62ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 77.2MB in the beginning and 165.5MB in the end (delta: -88.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-12 02:15:29,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.42ms. Allocated memory is still 195.0MB. Free memory was 165.5MB in the beginning and 162.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:29,790 INFO L158 Benchmark]: Boogie Preprocessor took 39.09ms. Allocated memory is still 195.0MB. Free memory was 162.3MB in the beginning and 161.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:29,791 INFO L158 Benchmark]: RCFGBuilder took 666.54ms. Allocated memory is still 195.0MB. Free memory was 160.3MB in the beginning and 142.4MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:15:29,793 INFO L158 Benchmark]: TraceAbstraction took 6969.50ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 141.4MB in the beginning and 111.5MB in the end (delta: 29.9MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2023-11-12 02:15:29,794 INFO L158 Benchmark]: Witness Printer took 11.05ms. Allocated memory is still 234.9MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:29,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 103.9MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.62ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 77.2MB in the beginning and 165.5MB in the end (delta: -88.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.42ms. Allocated memory is still 195.0MB. Free memory was 165.5MB in the beginning and 162.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.09ms. Allocated memory is still 195.0MB. Free memory was 162.3MB in the beginning and 161.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.54ms. Allocated memory is still 195.0MB. Free memory was 160.3MB in the beginning and 142.4MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6969.50ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 141.4MB in the beginning and 111.5MB in the end (delta: 29.9MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. * Witness Printer took 11.05ms. Allocated memory is still 234.9MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 8; [L23] unsigned short int var_1_2 = 59049; [L24] unsigned short int var_1_3 = 100; [L25] unsigned char var_1_6 = 16; [L26] signed char var_1_7 = -25; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 25; [L29] signed char var_1_10 = -10; [L30] signed char var_1_11 = 0; [L31] float var_1_12 = 25.1; [L32] unsigned long int var_1_13 = 2531521428; [L33] signed long int var_1_14 = -128; [L34] signed long int var_1_15 = 256; [L35] signed short int var_1_16 = -16; VAL [isInitial=0, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=59049, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L64] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L66] var_1_3 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L67] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L72] var_1_8 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L73] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L75] var_1_9 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 <= 31) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L78] var_1_10 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L79] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L82] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L83] var_1_13 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L84] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_13 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L85] RET assume_abort_if_not(var_1_13 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L39] var_1_14 = var_1_8 [L40] var_1_16 = var_1_14 [L41] signed long int stepLocal_0 = (((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)); VAL [isInitial=1, stepLocal_0=6, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=256, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L42] COND FALSE !(var_1_2 <= stepLocal_0) [L45] var_1_7 = var_1_10 VAL [isInitial=1, stepLocal_0=6, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=256, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L47] var_1_15 = var_1_16 VAL [isInitial=1, stepLocal_0=6, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L48] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) VAL [isInitial=1, stepLocal_0=6, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L48] COND FALSE !(((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) [L51] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=6, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L53] unsigned char stepLocal_1 = var_1_1; VAL [isInitial=1, stepLocal_0=6, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L54] COND TRUE 2.75f > var_1_12 [L55] var_1_11 = (var_1_10 + var_1_8) VAL [isInitial=1, stepLocal_0=6, stepLocal_1=0, var_1_10=0, var_1_11=6, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) VAL [isInitial=1, var_1_10=0, var_1_11=6, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L90-L91] return ((((((((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_2 <= ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) ? (var_1_7 == ((signed char) ((var_1_8 - (1 + var_1_9)) + var_1_10))) : (var_1_7 == ((signed char) var_1_10)))) && ((2.75f > var_1_12) ? (var_1_11 == ((signed char) (var_1_10 + var_1_8))) : (((var_1_13 - ((((var_1_14) > (var_1_8)) ? (var_1_14) : (var_1_8)))) > var_1_1) ? (var_1_11 == ((signed char) ((((((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) < (var_1_10)) ? (((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) : (var_1_10))))) : 1))) && (var_1_14 == ((signed long int) var_1_8))) && (var_1_15 == ((signed long int) var_1_16))) && (var_1_16 == ((signed short int) var_1_14)) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=6, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=6, var_1_12=2, var_1_13=4294967295, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=0, var_1_8=6, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 499 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 227 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 509 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 45 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 495 ConstructedInterpolants, 1 QuantifiedInterpolants, 1897 SizeOfPredicates, 12 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1935/2100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:15:29,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl --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 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:32,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:33,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:15:33,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:33,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:33,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:33,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:33,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:33,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:33,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:33,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:33,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:33,081 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:33,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:33,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:33,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:33,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:33,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:33,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:33,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:33,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:33,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:15:33,090 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:15:33,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:15:33,091 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:33,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:33,092 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:33,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:33,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:33,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:33,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:33,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:33,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:33,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:33,097 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:15:33,098 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:15:33,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:33,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:33,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:33,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:33,100 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:15:33,101 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:33,101 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 [2023-11-12 02:15:33,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:33,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:33,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:33,660 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:33,661 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:33,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 02:15:36,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:37,182 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:37,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 02:15:37,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data/1032e32a5/96567f62fa574163afe2fe5e4c7d1d83/FLAG898ff8fc0 [2023-11-12 02:15:37,210 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/data/1032e32a5/96567f62fa574163afe2fe5e4c7d1d83 [2023-11-12 02:15:37,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:37,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:37,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:37,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:37,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:37,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5702fcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37, skipping insertion in model container [2023-11-12 02:15:37,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,276 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:37,476 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 02:15:37,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:37,592 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:37,611 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 02:15:37,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:37,678 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:37,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37 WrapperNode [2023-11-12 02:15:37,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:37,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:37,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:37,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:37,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,769 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-11-12 02:15:37,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:37,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:37,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:37,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:37,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:37,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:37,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:37,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:37,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (1/1) ... [2023-11-12 02:15:37,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:37,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:37,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:37,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:15:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:15:37,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:15:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:37,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:38,063 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:38,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:38,429 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:38,436 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:38,436 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:38,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:38 BoogieIcfgContainer [2023-11-12 02:15:38,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:38,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:38,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:38,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:38,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:37" (1/3) ... [2023-11-12 02:15:38,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4363c5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:38, skipping insertion in model container [2023-11-12 02:15:38,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:37" (2/3) ... [2023-11-12 02:15:38,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4363c5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:38, skipping insertion in model container [2023-11-12 02:15:38,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:38" (3/3) ... [2023-11-12 02:15:38,450 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-37.i [2023-11-12 02:15:38,470 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:38,471 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:38,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:38,527 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4197af23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:38,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:38,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:15:38,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:38,547 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:38,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:38,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash 893252525, now seen corresponding path program 1 times [2023-11-12 02:15:38,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:15:38,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25886412] [2023-11-12 02:15:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:38,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:15:38,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:15:38,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:15:38,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:15:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:38,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:15:38,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 02:15:38,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:38,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:15:38,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25886412] [2023-11-12 02:15:38,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25886412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:38,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:38,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560519808] [2023-11-12 02:15:38,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:38,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:15:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:38,957 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:38,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:38,987 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2023-11-12 02:15:38,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:38,989 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2023-11-12 02:15:38,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:38,998 INFO L225 Difference]: With dead ends: 89 [2023-11-12 02:15:38,998 INFO L226 Difference]: Without dead ends: 44 [2023-11-12 02:15:39,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:39,006 INFO L413 NwaCegarLoop]: 62 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, 62 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 [2023-11-12 02:15:39,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:39,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-12 02:15:39,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-12 02:15:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:39,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2023-11-12 02:15:39,055 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 97 [2023-11-12 02:15:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:39,055 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2023-11-12 02:15:39,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:39,056 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2023-11-12 02:15:39,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:15:39,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:39,062 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:39,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:39,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:15:39,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:39,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:39,278 INFO L85 PathProgramCache]: Analyzing trace with hash -664290645, now seen corresponding path program 1 times [2023-11-12 02:15:39,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:15:39,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791364430] [2023-11-12 02:15:39,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:39,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:15:39,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:15:39,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:15:39,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:15:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:39,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:15:39,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-12 02:15:40,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:40,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:15:40,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791364430] [2023-11-12 02:15:40,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791364430] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:40,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [12333079] [2023-11-12 02:15:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:40,457 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 02:15:40,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 [2023-11-12 02:15:40,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 02:15:40,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 02:15:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:15:40,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-12 02:15:41,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:41,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [12333079] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:41,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:15:41,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-11-12 02:15:41,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382793185] [2023-11-12 02:15:41,520 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:41,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:15:41,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:15:41,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:15:41,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:15:41,523 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 02:15:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:42,196 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2023-11-12 02:15:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:15:42,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 97 [2023-11-12 02:15:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:42,201 INFO L225 Difference]: With dead ends: 97 [2023-11-12 02:15:42,201 INFO L226 Difference]: Without dead ends: 56 [2023-11-12 02:15:42,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:15:42,203 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:42,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 141 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:15:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-12 02:15:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2023-11-12 02:15:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2023-11-12 02:15:42,234 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 97 [2023-11-12 02:15:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:42,237 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2023-11-12 02:15:42,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 02:15:42,238 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-11-12 02:15:42,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 02:15:42,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:42,243 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:42,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:42,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-12 02:15:42,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/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_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt [2023-11-12 02:15:42,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:42,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:42,658 INFO L85 PathProgramCache]: Analyzing trace with hash 15767725, now seen corresponding path program 1 times [2023-11-12 02:15:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:15:42,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942915299] [2023-11-12 02:15:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:42,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:15:42,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:15:42,661 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:15:42,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:42,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:15:42,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 222 proven. 102 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-12 02:15:43,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:49,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:15:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942915299] [2023-11-12 02:15:49,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942915299] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [692520702] [2023-11-12 02:15:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:49,504 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 02:15:49,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 [2023-11-12 02:15:49,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 02:15:49,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80be75ca-e5f0-4237-946d-2afd11a8a08f/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-12 02:15:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:49,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 02:15:49,948 INFO L285 TraceCheckSpWp]: Computing forward predicates...