./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.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_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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_d48d061c-3393-44c1-a8dd-5e16c2366516/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 7feec2dfaa8390d0f5225581a355873726e9008cc8fc7fcc0d9a8b000417b9de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:05,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:06,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:33:06,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:06,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:06,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:06,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:06,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:06,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:06,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:06,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:06,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:06,210 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:06,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:06,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:06,214 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:33:06,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:06,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:33:06,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:06,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:06,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:06,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:06,218 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:33:06,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:06,219 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:06,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:06,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:06,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:06,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:06,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:06,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:06,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:06,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:06,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:06,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:06,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:06,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:06,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:06,228 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:06,228 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_d48d061c-3393-44c1-a8dd-5e16c2366516/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7feec2dfaa8390d0f5225581a355873726e9008cc8fc7fcc0d9a8b000417b9de [2023-11-12 02:33:06,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:06,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:06,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:06,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:06,678 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:06,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i [2023-11-12 02:33:09,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:10,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:10,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i [2023-11-12 02:33:10,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data/c3bc497d4/f8fd12960b3c4bc0862d8c65811aedbe/FLAGda237576c [2023-11-12 02:33:10,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data/c3bc497d4/f8fd12960b3c4bc0862d8c65811aedbe [2023-11-12 02:33:10,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:10,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:10,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:10,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:10,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:10,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e93840c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10, skipping insertion in model container [2023-11-12 02:33:10,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:10,520 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_d48d061c-3393-44c1-a8dd-5e16c2366516/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i[913,926] [2023-11-12 02:33:10,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:10,602 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:10,617 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_d48d061c-3393-44c1-a8dd-5e16c2366516/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i[913,926] [2023-11-12 02:33:10,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:10,675 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:10,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10 WrapperNode [2023-11-12 02:33:10,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:10,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:10,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:10,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:10,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,749 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 164 [2023-11-12 02:33:10,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:10,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:10,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:10,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:10,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:10,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:10,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:10,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:10,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:10,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:10,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:10,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:33:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:33:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:11,033 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:11,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:11,501 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:11,519 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:11,523 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:33:11,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:11 BoogieIcfgContainer [2023-11-12 02:33:11,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:11,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:11,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:11,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:11,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:10" (1/3) ... [2023-11-12 02:33:11,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45241cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:11, skipping insertion in model container [2023-11-12 02:33:11,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10" (2/3) ... [2023-11-12 02:33:11,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45241cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:11, skipping insertion in model container [2023-11-12 02:33:11,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:11" (3/3) ... [2023-11-12 02:33:11,545 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-61.i [2023-11-12 02:33:11,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:11,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:33:11,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:11,664 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;@98efb62, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:11,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:33:11,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:33:11,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:11,699 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:11,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:11,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:11,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1094059657, now seen corresponding path program 1 times [2023-11-12 02:33:11,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:11,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792487622] [2023-11-12 02:33:11,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:11,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:12,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:12,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792487622] [2023-11-12 02:33:12,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:33:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684215147] [2023-11-12 02:33:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:12,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:12,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:12,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:12,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:33:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:12,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:33:12,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-12 02:33:12,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:12,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684215147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:12,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:12,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:33:12,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511260099] [2023-11-12 02:33:12,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:12,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:33:12,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:12,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:33:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:33:12,511 INFO L87 Difference]: Start difference. First operand has 78 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:33:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:12,549 INFO L93 Difference]: Finished difference Result 149 states and 254 transitions. [2023-11-12 02:33:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:33:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 134 [2023-11-12 02:33:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:12,559 INFO L225 Difference]: With dead ends: 149 [2023-11-12 02:33:12,559 INFO L226 Difference]: Without dead ends: 74 [2023-11-12 02:33:12,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 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 02:33:12,567 INFO L413 NwaCegarLoop]: 111 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, 111 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 02:33:12,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:33:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-12 02:33:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-12 02:33:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 52 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 111 transitions. [2023-11-12 02:33:12,621 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 111 transitions. Word has length 134 [2023-11-12 02:33:12,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:12,622 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 111 transitions. [2023-11-12 02:33:12,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:33:12,622 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2023-11-12 02:33:12,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:33:12,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:12,627 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:12,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:12,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:33:12,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:12,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:12,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1134627319, now seen corresponding path program 1 times [2023-11-12 02:33:12,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:12,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806282570] [2023-11-12 02:33:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:12,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:13,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:13,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923549174] [2023-11-12 02:33:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:13,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:13,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:13,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:13,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:33:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:13,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:33:13,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 02:33:13,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:13,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:13,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806282570] [2023-11-12 02:33:13,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923549174] [2023-11-12 02:33:13,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923549174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:13,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:13,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:33:13,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910641378] [2023-11-12 02:33:13,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:13,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:13,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:13,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:13,232 INFO L87 Difference]: Start difference. First operand 74 states and 111 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:13,279 INFO L93 Difference]: Finished difference Result 145 states and 219 transitions. [2023-11-12 02:33:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-11-12 02:33:13,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:13,283 INFO L225 Difference]: With dead ends: 145 [2023-11-12 02:33:13,283 INFO L226 Difference]: Without dead ends: 74 [2023-11-12 02:33:13,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:13,286 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 31 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:13,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 184 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:33:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-12 02:33:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-12 02:33:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 52 states have internal predecessors, (70), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 110 transitions. [2023-11-12 02:33:13,331 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 110 transitions. Word has length 134 [2023-11-12 02:33:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:13,334 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 110 transitions. [2023-11-12 02:33:13,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 110 transitions. [2023-11-12 02:33:13,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:33:13,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:13,338 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:13,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:13,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 02:33:13,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:13,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1471396235, now seen corresponding path program 1 times [2023-11-12 02:33:13,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:13,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513684563] [2023-11-12 02:33:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:13,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:13,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:13,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678247015] [2023-11-12 02:33:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:13,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:13,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:13,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:13,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:33:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:14,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:33:14,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 02:33:14,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:14,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:14,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513684563] [2023-11-12 02:33:14,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:14,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678247015] [2023-11-12 02:33:14,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678247015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:14,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:14,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:33:14,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746550821] [2023-11-12 02:33:14,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:14,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:14,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:14,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:14,872 INFO L87 Difference]: Start difference. First operand 74 states and 110 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:15,190 INFO L93 Difference]: Finished difference Result 215 states and 322 transitions. [2023-11-12 02:33:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:33:15,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-11-12 02:33:15,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:15,204 INFO L225 Difference]: With dead ends: 215 [2023-11-12 02:33:15,204 INFO L226 Difference]: Without dead ends: 144 [2023-11-12 02:33:15,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:15,208 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 114 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:15,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 276 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:33:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-12 02:33:15,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 97. [2023-11-12 02:33:15,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions. [2023-11-12 02:33:15,262 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 134 [2023-11-12 02:33:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:15,263 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 145 transitions. [2023-11-12 02:33:15,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:15,264 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions. [2023-11-12 02:33:15,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:33:15,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:15,272 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:15,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:15,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:15,473 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:15,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash -116951667, now seen corresponding path program 1 times [2023-11-12 02:33:15,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:15,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282978844] [2023-11-12 02:33:15,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:15,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:15,548 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327911257] [2023-11-12 02:33:15,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:15,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:15,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:15,559 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:15,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:33:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:15,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:33:15,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 02:33:15,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:15,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:15,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282978844] [2023-11-12 02:33:15,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:15,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327911257] [2023-11-12 02:33:15,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327911257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:15,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:15,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:33:15,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983770687] [2023-11-12 02:33:15,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:15,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:15,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:15,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:15,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:15,885 INFO L87 Difference]: Start difference. First operand 97 states and 145 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:16,086 INFO L93 Difference]: Finished difference Result 238 states and 353 transitions. [2023-11-12 02:33:16,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:33:16,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-11-12 02:33:16,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:16,094 INFO L225 Difference]: With dead ends: 238 [2023-11-12 02:33:16,095 INFO L226 Difference]: Without dead ends: 144 [2023-11-12 02:33:16,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:16,100 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 116 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:16,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 287 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:33:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-12 02:33:16,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 97. [2023-11-12 02:33:16,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 75 states have internal predecessors, (104), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 144 transitions. [2023-11-12 02:33:16,153 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 144 transitions. Word has length 134 [2023-11-12 02:33:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:16,154 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 144 transitions. [2023-11-12 02:33:16,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:16,154 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 144 transitions. [2023-11-12 02:33:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-12 02:33:16,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:16,159 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:16,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:16,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:16,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:16,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:16,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2021818126, now seen corresponding path program 1 times [2023-11-12 02:33:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:16,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585461856] [2023-11-12 02:33:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:16,454 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:16,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266741131] [2023-11-12 02:33:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:16,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:16,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:16,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:16,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:33:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:33:16,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:33:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:33:17,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:33:17,002 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:33:17,003 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:33:17,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 02:33:17,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:17,210 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:33:17,221 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:33:17,406 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:33:17,410 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-12 02:33:17,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:33:17 BoogieIcfgContainer [2023-11-12 02:33:17,441 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:33:17,442 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:33:17,442 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:33:17,443 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:33:17,443 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:11" (3/4) ... [2023-11-12 02:33:17,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:33:17,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:33:17,448 INFO L158 Benchmark]: Toolchain (without parser) took 7156.33ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 96.3MB in the beginning and 135.7MB in the end (delta: -39.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:33:17,449 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 96.5MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:33:17,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.58ms. Allocated memory is still 140.5MB. Free memory was 96.3MB in the beginning and 83.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:33:17,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.83ms. Allocated memory is still 140.5MB. Free memory was 83.0MB in the beginning and 80.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:33:17,450 INFO L158 Benchmark]: Boogie Preprocessor took 54.34ms. Allocated memory is still 140.5MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:33:17,451 INFO L158 Benchmark]: RCFGBuilder took 722.28ms. Allocated memory is still 140.5MB. Free memory was 78.3MB in the beginning and 58.5MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:33:17,451 INFO L158 Benchmark]: TraceAbstraction took 5907.65ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 57.9MB in the beginning and 135.7MB in the end (delta: -77.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-11-12 02:33:17,452 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 172.0MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:33:17,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 96.5MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.58ms. Allocated memory is still 140.5MB. Free memory was 96.3MB in the beginning and 83.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.83ms. Allocated memory is still 140.5MB. Free memory was 83.0MB in the beginning and 80.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.34ms. Allocated memory is still 140.5MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 722.28ms. Allocated memory is still 140.5MB. Free memory was 78.3MB in the beginning and 58.5MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5907.65ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 57.9MB in the beginning and 135.7MB in the end (delta: -77.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 172.0MB. Free memory is still 135.7MB. 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~short18 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 101, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 129. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 8.5; [L23] unsigned long int var_1_4 = 1; [L24] unsigned long int var_1_5 = 50; [L25] unsigned long int var_1_6 = 4; [L26] float var_1_7 = 15.8; [L27] float var_1_8 = 64.25; [L28] signed long int var_1_9 = -50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 3207304078; [L31] unsigned long int var_1_15 = 50; [L32] unsigned long int var_1_16 = 25; [L33] unsigned char var_1_17 = 1; [L34] unsigned char var_1_18 = 0; [L35] unsigned char var_1_19 = 0; [L36] unsigned short int var_1_20 = 1; [L37] unsigned long int var_1_21 = 50; [L38] signed char var_1_22 = -4; [L39] signed char var_1_23 = -10; [L40] signed long int last_1_var_1_9 = -50; VAL [isInitial=0, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=50, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L133] isInitial = 1 [L134] FCALL initially() [L135] COND TRUE 1 [L136] CALL updateLastVariables() [L126] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=50, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L136] RET updateLastVariables() [L137] CALL updateVariables() [L94] var_1_5 = __VERIFIER_nondet_ulong() [L95] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L95] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L96] CALL assume_abort_if_not(var_1_5 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L96] RET assume_abort_if_not(var_1_5 <= 4294967294) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=4, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L97] var_1_6 = __VERIFIER_nondet_ulong() [L98] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L98] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L99] CALL assume_abort_if_not(var_1_6 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L99] RET assume_abort_if_not(var_1_6 <= 4294967294) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=257/4, var_1_9=-50] [L100] var_1_8 = __VERIFIER_nondet_float() [L101] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L101] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=3207304078, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L102] var_1_14 = __VERIFIER_nondet_ulong() [L103] CALL assume_abort_if_not(var_1_14 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L103] RET assume_abort_if_not(var_1_14 >= 2147483647) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L104] CALL assume_abort_if_not(var_1_14 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L104] RET assume_abort_if_not(var_1_14 <= 4294967295) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=50, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L105] var_1_15 = __VERIFIER_nondet_ulong() [L106] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L106] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L107] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L107] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=25, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L108] var_1_16 = __VERIFIER_nondet_ulong() [L109] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L109] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L110] CALL assume_abort_if_not(var_1_16 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L110] RET assume_abort_if_not(var_1_16 <= 2147483647) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L111] var_1_17 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L112] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L113] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L113] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L114] var_1_18 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L115] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L116] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L116] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L117] var_1_20 = __VERIFIER_nondet_ushort() [L118] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L118] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L119] CALL assume_abort_if_not(var_1_20 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L119] RET assume_abort_if_not(var_1_20 <= 65535) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L120] CALL assume_abort_if_not(var_1_20 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L120] RET assume_abort_if_not(var_1_20 != 0) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=-10, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L121] var_1_23 = __VERIFIER_nondet_char() [L122] CALL assume_abort_if_not(var_1_23 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L122] RET assume_abort_if_not(var_1_23 >= -127) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L123] CALL assume_abort_if_not(var_1_23 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L123] RET assume_abort_if_not(var_1_23 <= 126) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L137] RET updateVariables() [L138] CALL step() [L44] signed long int stepLocal_0 = last_1_var_1_9; VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L45] COND FALSE !(stepLocal_0 < last_1_var_1_9) VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=50, var_1_22=-4, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L48] var_1_21 = var_1_6 [L49] var_1_22 = var_1_23 VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=17/2, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L50] COND TRUE (var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4 [L51] var_1_1 = (8.8 - 255.2) VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L53] unsigned long int stepLocal_4 = 4256310412u - 128u; VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_4=4256310284, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L54] COND FALSE !(var_1_4 >= stepLocal_4) VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_4=4256310284, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L57] signed long int stepLocal_3 = var_1_9; [L58] unsigned long int stepLocal_2 = (((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)); VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L59] EXPR var_1_21 ^ 4u VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=79/5, var_1_8=2, var_1_9=-50] [L59] unsigned long int stepLocal_1 = var_1_21 ^ 4u; [L60] COND FALSE !(var_1_9 <= stepLocal_2) [L69] var_1_7 = var_1_8 VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_1=68, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L71] COND FALSE !(var_1_21 >= (var_1_14 - ((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) [L78] var_1_13 = var_1_18 VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_1=68, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L80] signed long int stepLocal_5 = (var_1_22 / 2) / var_1_20; VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_1=68, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, stepLocal_5=0, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L81] COND TRUE stepLocal_5 >= (~ 100) VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_1=68, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, stepLocal_5=0, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=0, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L82] COND TRUE \read(var_1_13) [L83] var_1_19 = (var_1_17 && var_1_18) VAL [isInitial=1, last_1_var_1_9=-50, stepLocal_0=-50, stepLocal_1=68, stepLocal_2=4294967245, stepLocal_3=-50, stepLocal_4=4256310284, stepLocal_5=0, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=1, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L138] RET step() [L139] CALL, EXPR property() [L129] EXPR ((((var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4) ? (var_1_1 == ((double) (8.8 - 255.2))) : 1) && ((last_1_var_1_9 < last_1_var_1_9) ? (var_1_4 == ((unsigned long int) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) : 1)) && ((var_1_9 <= ((((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)))) ? ((var_1_9 < var_1_5) ? ((var_1_9 >= (var_1_21 ^ 4u)) ? (var_1_7 == ((float) var_1_8)) : 1) : (var_1_7 == ((float) var_1_8))) : (var_1_7 == ((float) var_1_8))) VAL [isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=1, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L129-L130] return (((((((((var_1_21 / ((((64u) < 0 ) ? -(64u) : (64u)))) == var_1_4) ? (var_1_1 == ((double) (8.8 - 255.2))) : 1) && ((last_1_var_1_9 < last_1_var_1_9) ? (var_1_4 == ((unsigned long int) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) : 1)) && ((var_1_9 <= ((((var_1_21) > (var_1_5)) ? (var_1_21) : (var_1_5)))) ? ((var_1_9 < var_1_5) ? ((var_1_9 >= (var_1_21 ^ 4u)) ? (var_1_7 == ((float) var_1_8)) : 1) : (var_1_7 == ((float) var_1_8))) : (var_1_7 == ((float) var_1_8)))) && ((var_1_4 >= (4256310412u - 128u)) ? (var_1_9 == ((signed long int) (((((var_1_22 + var_1_22) < 0 ) ? -(var_1_22 + var_1_22) : (var_1_22 + var_1_22))) + var_1_22))) : 1)) && ((var_1_21 >= (var_1_14 - ((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) ? ((var_1_16 < var_1_9) ? (var_1_13 == ((unsigned char) var_1_17)) : (var_1_13 == ((unsigned char) var_1_17))) : (var_1_13 == ((unsigned char) var_1_18)))) && ((((var_1_22 / 2) / var_1_20) >= (~ 100)) ? (var_1_13 ? (var_1_19 == ((unsigned char) (var_1_17 && var_1_18))) : 1) : (var_1_17 ? (var_1_19 == ((unsigned char) var_1_18)) : (var_1_19 == ((unsigned char) var_1_18))))) && (var_1_21 == ((unsigned long int) var_1_6))) && (var_1_22 == ((signed char) var_1_23)) ; [L139] RET, EXPR property() [L139] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=1, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=-50, var_1_13=1, var_1_14=2147483712, var_1_15=2147483647, var_1_16=2147483647, var_1_17=1, var_1_18=1, var_1_19=1, var_1_20=1, var_1_21=64, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=4294967245, var_1_6=64, var_1_7=2, var_1_8=2, var_1_9=-50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 261 mSDsluCounter, 858 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 512 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 94 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 806 NumberOfCodeBlocks, 806 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 532 ConstructedInterpolants, 0 QuantifiedInterpolants, 921 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1267 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3040/3040 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 02:33:17,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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_d48d061c-3393-44c1-a8dd-5e16c2366516/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 7feec2dfaa8390d0f5225581a355873726e9008cc8fc7fcc0d9a8b000417b9de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:20,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:20,667 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:33:20,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:20,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:20,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:20,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:20,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:20,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:20,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:20,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:20,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:20,745 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:20,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:20,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:20,748 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:33:20,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:33:20,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:20,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:20,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:20,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:20,751 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:33:20,752 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:33:20,752 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:33:20,752 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:33:20,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:20,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:20,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:20,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:20,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:20,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:20,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:20,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:20,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:20,757 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:33:20,758 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:33:20,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:20,758 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:20,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:20,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:20,760 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:33:20,760 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:20,760 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_d48d061c-3393-44c1-a8dd-5e16c2366516/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7feec2dfaa8390d0f5225581a355873726e9008cc8fc7fcc0d9a8b000417b9de [2023-11-12 02:33:21,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:21,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:21,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:21,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:21,283 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:21,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i [2023-11-12 02:33:24,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:25,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:25,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i [2023-11-12 02:33:25,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data/5812f3c36/787af26fcd554a24a43c5ef0704d4e81/FLAGd1a9fdb95 [2023-11-12 02:33:25,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/data/5812f3c36/787af26fcd554a24a43c5ef0704d4e81 [2023-11-12 02:33:25,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:25,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:25,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:25,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:25,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:25,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25, skipping insertion in model container [2023-11-12 02:33:25,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:25,424 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_d48d061c-3393-44c1-a8dd-5e16c2366516/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i[913,926] [2023-11-12 02:33:25,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:25,517 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:25,530 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_d48d061c-3393-44c1-a8dd-5e16c2366516/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-61.i[913,926] [2023-11-12 02:33:25,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:25,595 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:25,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25 WrapperNode [2023-11-12 02:33:25,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:25,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:25,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:25,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:25,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,668 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-12 02:33:25,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:25,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:25,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:25,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:25,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:25,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:25,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:25,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:25,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (1/1) ... [2023-11-12 02:33:25,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:25,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:25,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:25,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:33:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:33:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:33:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:25,921 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:25,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:26,714 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:26,723 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:26,723 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:33:26,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:26 BoogieIcfgContainer [2023-11-12 02:33:26,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:26,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:26,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:26,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:26,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:25" (1/3) ... [2023-11-12 02:33:26,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb7bb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:26, skipping insertion in model container [2023-11-12 02:33:26,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:25" (2/3) ... [2023-11-12 02:33:26,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb7bb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:26, skipping insertion in model container [2023-11-12 02:33:26,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:26" (3/3) ... [2023-11-12 02:33:26,738 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-61.i [2023-11-12 02:33:26,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:26,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:33:26,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:26,856 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;@178b842b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:26,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:33:26,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-12 02:33:26,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:26,889 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:26,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:26,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:26,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1015363838, now seen corresponding path program 1 times [2023-11-12 02:33:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:33:26,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425483604] [2023-11-12 02:33:26,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:26,931 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 02:33:26,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:33:26,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:26,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:27,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:33:27,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-11-12 02:33:27,546 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:27,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:33:27,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425483604] [2023-11-12 02:33:27,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425483604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:27,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:27,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:33:27,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133333242] [2023-11-12 02:33:27,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:27,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:33:27,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:33:27,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:33:27,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:33:27,616 INFO L87 Difference]: Start difference. First operand has 64 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:33:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:27,678 INFO L93 Difference]: Finished difference Result 121 states and 208 transitions. [2023-11-12 02:33:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:33:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 130 [2023-11-12 02:33:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:27,696 INFO L225 Difference]: With dead ends: 121 [2023-11-12 02:33:27,697 INFO L226 Difference]: Without dead ends: 60 [2023-11-12 02:33:27,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 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 02:33:27,707 INFO L413 NwaCegarLoop]: 90 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, 90 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 02:33:27,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:33:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-12 02:33:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-12 02:33:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:33:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2023-11-12 02:33:27,800 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 130 [2023-11-12 02:33:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:27,801 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2023-11-12 02:33:27,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:33:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2023-11-12 02:33:27,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-12 02:33:27,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:27,812 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:27,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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)] Ended with exit code 0 [2023-11-12 02:33:28,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:28,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:28,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2072475266, now seen corresponding path program 1 times [2023-11-12 02:33:28,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:33:28,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961208360] [2023-11-12 02:33:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:28,028 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 02:33:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:33:28,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:28,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:28,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:33:28,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:29,207 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 02:33:29,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:29,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:33:29,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961208360] [2023-11-12 02:33:29,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961208360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:29,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:29,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:33:29,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615703735] [2023-11-12 02:33:29,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:29,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:33:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:33:29,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:33:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:29,216 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:30,259 INFO L93 Difference]: Finished difference Result 191 states and 289 transitions. [2023-11-12 02:33:30,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:33:30,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2023-11-12 02:33:30,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:30,277 INFO L225 Difference]: With dead ends: 191 [2023-11-12 02:33:30,278 INFO L226 Difference]: Without dead ends: 134 [2023-11-12 02:33:30,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:33:30,281 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 102 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:30,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 282 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 02:33:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-12 02:33:30,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 115. [2023-11-12 02:33:30,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 72 states have internal predecessors, (95), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-12 02:33:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 175 transitions. [2023-11-12 02:33:30,319 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 175 transitions. Word has length 130 [2023-11-12 02:33:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:30,320 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 175 transitions. [2023-11-12 02:33:30,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 02:33:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 175 transitions. [2023-11-12 02:33:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-12 02:33:30,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:30,324 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:33:30,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:30,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:30,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:30,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash 792611588, now seen corresponding path program 1 times [2023-11-12 02:33:30,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:33:30,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748448288] [2023-11-12 02:33:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:30,544 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 02:33:30,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:33:30,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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 02:33:30,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d48d061c-3393-44c1-a8dd-5e16c2366516/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)] Waiting until timeout for monitored process [2023-11-12 02:33:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-12 02:33:30,897 INFO L285 TraceCheckSpWp]: Computing forward predicates...