./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu --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 d607f3879345041e6460d015c785fbf73afb45a0aff70b1106cf7b1382739630 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:49,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:49,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:41:49,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:49,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:49,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:49,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:49,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:49,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:50,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:50,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:50,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:50,003 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:50,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:50,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:50,006 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:50,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:50,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:50,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:50,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:50,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:50,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:50,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:50,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:50,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:50,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:50,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:50,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:50,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:50,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:50,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:50,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:50,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:50,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:50,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:50,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:50,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:50,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:50,017 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:50,017 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_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d607f3879345041e6460d015c785fbf73afb45a0aff70b1106cf7b1382739630 [2023-11-19 07:41:50,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:50,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:50,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:50,355 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:50,356 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:50,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i [2023-11-19 07:41:53,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:53,802 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:53,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i [2023-11-19 07:41:53,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data/bdb764dc6/c8d2bcefd65548a993ecb67e61de55fd/FLAG64a325141 [2023-11-19 07:41:53,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data/bdb764dc6/c8d2bcefd65548a993ecb67e61de55fd [2023-11-19 07:41:53,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:53,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:53,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:53,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:53,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:53,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:53" (1/1) ... [2023-11-19 07:41:53,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5687ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:53, skipping insertion in model container [2023-11-19 07:41:53,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:53" (1/1) ... [2023-11-19 07:41:53,894 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:54,051 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_4a3a4493-0a5c-4773-a238-6894817744b3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i[915,928] [2023-11-19 07:41:54,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:54,116 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:54,127 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_4a3a4493-0a5c-4773-a238-6894817744b3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i[915,928] [2023-11-19 07:41:54,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:54,177 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:54,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54 WrapperNode [2023-11-19 07:41:54,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:54,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:54,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:54,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:54,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,257 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145 [2023-11-19 07:41:54,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:54,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:54,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:54,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:54,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:54,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:54,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:54,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:54,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (1/1) ... [2023-11-19 07:41:54,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:54,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:54,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:54,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:41:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:41:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:54,524 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:54,532 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:54,886 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:54,895 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:54,895 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:41:54,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:54 BoogieIcfgContainer [2023-11-19 07:41:54,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:54,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:54,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:54,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:54,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:53" (1/3) ... [2023-11-19 07:41:54,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cff7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:54, skipping insertion in model container [2023-11-19 07:41:54,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:54" (2/3) ... [2023-11-19 07:41:54,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cff7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:54, skipping insertion in model container [2023-11-19 07:41:54,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:54" (3/3) ... [2023-11-19 07:41:54,923 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-68.i [2023-11-19 07:41:54,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:54,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:41:55,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:41:55,022 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;@3fae5111, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:41:55,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:41:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 45 states have internal predecessors, (65), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:41:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 07:41:55,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:55,057 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:55,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:55,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:55,096 INFO L85 PathProgramCache]: Analyzing trace with hash -134504194, now seen corresponding path program 1 times [2023-11-19 07:41:55,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:55,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457017549] [2023-11-19 07:41:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:55,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:55,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:55,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457017549] [2023-11-19 07:41:55,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:41:55,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456131604] [2023-11-19 07:41:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:55,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:55,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:41:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:55,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:41:55,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-19 07:41:55,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:55,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456131604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:55,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:55,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79164156] [2023-11-19 07:41:55,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:55,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:41:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:55,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:41:55,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:55,752 INFO L87 Difference]: Start difference. First operand has 57 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 45 states have internal predecessors, (65), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:41:55,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:55,779 INFO L93 Difference]: Finished difference Result 111 states and 177 transitions. [2023-11-19 07:41:55,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:55,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2023-11-19 07:41:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:55,790 INFO L225 Difference]: With dead ends: 111 [2023-11-19 07:41:55,790 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 07:41:55,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:55,798 INFO L413 NwaCegarLoop]: 80 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, 80 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 [2023-11-19 07:41:55,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:55,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 07:41:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-19 07:41:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:41:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2023-11-19 07:41:55,845 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 78 [2023-11-19 07:41:55,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:55,846 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2023-11-19 07:41:55,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:41:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2023-11-19 07:41:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 07:41:55,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:55,851 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:55,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:56,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:41:56,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:56,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2085790462, now seen corresponding path program 1 times [2023-11-19 07:41:56,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:56,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121589143] [2023-11-19 07:41:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:56,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:56,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:56,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321343899] [2023-11-19 07:41:56,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:56,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:56,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:56,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:41:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:56,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:56,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:41:56,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:56,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121589143] [2023-11-19 07:41:56,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321343899] [2023-11-19 07:41:56,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321343899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:56,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:56,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:56,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529561613] [2023-11-19 07:41:56,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:56,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:56,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:56,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:56,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:56,401 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:41:56,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:56,469 INFO L93 Difference]: Finished difference Result 103 states and 149 transitions. [2023-11-19 07:41:56,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:56,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2023-11-19 07:41:56,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:56,474 INFO L225 Difference]: With dead ends: 103 [2023-11-19 07:41:56,474 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 07:41:56,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:56,476 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 78 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:56,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 122 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 07:41:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-19 07:41:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:41:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2023-11-19 07:41:56,514 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 78 [2023-11-19 07:41:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:56,518 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2023-11-19 07:41:56,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:41:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2023-11-19 07:41:56,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:41:56,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:56,529 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:56,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:56,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:56,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:56,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1858042195, now seen corresponding path program 1 times [2023-11-19 07:41:56,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:56,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100884127] [2023-11-19 07:41:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:56,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:56,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:56,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130328780] [2023-11-19 07:41:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:56,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:56,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:56,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:56,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:41:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:57,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:41:57,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:57,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:57,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:57,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100884127] [2023-11-19 07:41:57,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:57,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130328780] [2023-11-19 07:41:57,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130328780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:57,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:57,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:41:57,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069093361] [2023-11-19 07:41:57,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:57,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:41:57,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:41:57,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:57,210 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:41:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:58,074 INFO L93 Difference]: Finished difference Result 219 states and 301 transitions. [2023-11-19 07:41:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-19 07:41:58,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 79 [2023-11-19 07:41:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:58,078 INFO L225 Difference]: With dead ends: 219 [2023-11-19 07:41:58,078 INFO L226 Difference]: Without dead ends: 169 [2023-11-19 07:41:58,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:41:58,081 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 239 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:58,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 374 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:41:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-19 07:41:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 72. [2023-11-19 07:41:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 59 states have (on average 1.305084745762712) internal successors, (77), 59 states have internal predecessors, (77), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:41:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 97 transitions. [2023-11-19 07:41:58,111 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 97 transitions. Word has length 79 [2023-11-19 07:41:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:58,112 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 97 transitions. [2023-11-19 07:41:58,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:41:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2023-11-19 07:41:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:41:58,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:58,115 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:58,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:58,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:58,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:58,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash -204340070, now seen corresponding path program 1 times [2023-11-19 07:41:58,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:58,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725678095] [2023-11-19 07:41:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:58,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:58,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720653026] [2023-11-19 07:41:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:58,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:58,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:58,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:58,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:41:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:41:58,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:59,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:59,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:59,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725678095] [2023-11-19 07:41:59,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:59,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720653026] [2023-11-19 07:41:59,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720653026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:59,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:59,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:41:59,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797528549] [2023-11-19 07:41:59,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:59,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:41:59,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:59,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:41:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:41:59,064 INFO L87 Difference]: Start difference. First operand 72 states and 97 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:41:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:59,609 INFO L93 Difference]: Finished difference Result 290 states and 385 transitions. [2023-11-19 07:41:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:41:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2023-11-19 07:41:59,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:59,613 INFO L225 Difference]: With dead ends: 290 [2023-11-19 07:41:59,613 INFO L226 Difference]: Without dead ends: 221 [2023-11-19 07:41:59,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:41:59,622 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 277 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:59,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 405 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:41:59,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-19 07:41:59,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 103. [2023-11-19 07:41:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 78 states have (on average 1.294871794871795) internal successors, (101), 78 states have internal predecessors, (101), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:41:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 141 transitions. [2023-11-19 07:41:59,676 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 141 transitions. Word has length 80 [2023-11-19 07:41:59,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:59,679 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 141 transitions. [2023-11-19 07:41:59,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:41:59,679 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2023-11-19 07:41:59,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:41:59,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:59,682 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:59,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:59,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:59,897 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:59,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1792687972, now seen corresponding path program 1 times [2023-11-19 07:41:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076659688] [2023-11-19 07:41:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:59,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:59,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:59,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453522970] [2023-11-19 07:41:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:59,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:59,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:59,951 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:59,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:42:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:00,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:00,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:00,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:42:00,385 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:42:00,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:00,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:00,597 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:42:00,600 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:42:00,678 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:42:00,697 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-19 07:42:00,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:42:00 BoogieIcfgContainer [2023-11-19 07:42:00,728 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:42:00,729 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:42:00,729 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:42:00,729 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:42:00,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:54" (3/4) ... [2023-11-19 07:42:00,737 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:42:00,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:42:00,739 INFO L158 Benchmark]: Toolchain (without parser) took 6905.69ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 127.2MB in the beginning and 97.5MB in the end (delta: 29.7MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,741 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 157.3MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:00,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.45ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 113.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.36ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 110.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,743 INFO L158 Benchmark]: Boogie Preprocessor took 42.23ms. Allocated memory is still 157.3MB. Free memory was 110.0MB in the beginning and 108.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:00,744 INFO L158 Benchmark]: RCFGBuilder took 607.13ms. Allocated memory is still 157.3MB. Free memory was 107.9MB in the beginning and 88.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,745 INFO L158 Benchmark]: TraceAbstraction took 5817.09ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 87.3MB in the beginning and 97.5MB in the end (delta: -10.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,745 INFO L158 Benchmark]: Witness Printer took 9.57ms. Allocated memory is still 201.3MB. Free memory was 97.5MB in the beginning and 97.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 157.3MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.45ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 113.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.36ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 110.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.23ms. Allocated memory is still 157.3MB. Free memory was 110.0MB in the beginning and 108.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 607.13ms. Allocated memory is still 157.3MB. Free memory was 107.9MB in the beginning and 88.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5817.09ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 87.3MB in the beginning and 97.5MB in the end (delta: -10.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Witness Printer took 9.57ms. Allocated memory is still 201.3MB. Free memory was 97.5MB in the beginning and 97.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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~nondet10 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 someBinaryDOUBLEComparisonOperation at line 114, overapproximation of someBinaryFLOATComparisonOperation at line 114. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 1; [L26] unsigned char var_1_8 = 32; [L27] double var_1_9 = 4.6; [L28] double var_1_10 = 9.25; [L29] double var_1_11 = 1.25; [L30] unsigned char var_1_12 = 100; [L31] unsigned char var_1_13 = 64; [L32] unsigned char var_1_14 = 0; [L33] float var_1_15 = 7.5; [L34] signed long int var_1_16 = 0; [L35] double last_1_var_1_9 = 4.6; [L36] unsigned char last_1_var_1_12 = 100; [L37] unsigned char last_1_var_1_14 = 0; [L38] signed long int last_1_var_1_16 = 0; VAL [isInitial=0, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L118] isInitial = 1 [L119] FCALL initially() [L120] int k_loop; [L121] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L121] COND TRUE k_loop < 1 [L122] CALL updateLastVariables() [L108] last_1_var_1_9 = var_1_9 [L109] last_1_var_1_12 = var_1_12 [L110] last_1_var_1_14 = var_1_14 [L111] last_1_var_1_16 = var_1_16 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L122] RET updateLastVariables() [L123] CALL updateVariables() [L91] var_1_5 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L92] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L93] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L93] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L94] var_1_7 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L95] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L96] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L96] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L97] var_1_8 = __VERIFIER_nondet_uchar() [L98] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L98] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L99] CALL assume_abort_if_not(var_1_8 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L99] RET assume_abort_if_not(var_1_8 <= 255) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L100] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L100] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L101] var_1_10 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L102] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L103] var_1_13 = __VERIFIER_nondet_uchar() [L104] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L104] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L105] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L105] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L123] RET updateVariables() [L124] CALL step() [L42] signed long int stepLocal_4 = last_1_var_1_16; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L43] COND FALSE !(\read(last_1_var_1_14)) [L54] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L56] var_1_16 = last_1_var_1_12 [L57] unsigned long int stepLocal_6 = var_1_13 % (5u + 256u); [L58] signed long int stepLocal_5 = var_1_13 + 16; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L59] COND TRUE stepLocal_6 <= var_1_16 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L60] COND FALSE !(stepLocal_5 >= var_1_16) [L63] var_1_14 = var_1_7 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L66] unsigned char stepLocal_0 = var_1_12; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L67] EXPR var_1_12 ^ var_1_12 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L67] COND TRUE stepLocal_0 <= (var_1_12 ^ var_1_12) [L68] var_1_1 = (! var_1_5) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L72] unsigned char stepLocal_2 = var_1_12 < (var_1_16 / var_1_8); [L73] signed long int stepLocal_1 = var_1_16; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L74] COND FALSE !(-256 >= stepLocal_1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=57, var_1_9=23/5] [L77] COND TRUE stepLocal_2 || ((var_1_5 && var_1_7) && var_1_1) [L78] var_1_6 = var_1_7 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=23/5] [L81] unsigned char stepLocal_3 = ! var_1_5; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_3=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=23/5] [L82] COND TRUE (var_1_7 && var_1_14) || stepLocal_3 [L83] var_1_11 = var_1_10 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_3=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=23/5] [L85] var_1_15 = var_1_10 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_3=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=23/5] [L86] COND TRUE ((((((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) > (var_1_12)) ? (((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) : (var_1_12))) <= (50 * var_1_8) [L87] var_1_9 = var_1_10 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_1=100, stepLocal_2=1, stepLocal_3=1, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=2] [L124] RET step() [L125] CALL, EXPR property() [L114] EXPR var_1_12 ^ var_1_12 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=2] [L114-L115] return ((((((((var_1_12 <= (var_1_12 ^ var_1_12)) ? (var_1_1 == ((unsigned char) (! var_1_5))) : (var_1_1 == ((unsigned char) (! var_1_5)))) && ((-256 >= var_1_16) ? (var_1_6 == ((unsigned char) (var_1_1 || var_1_7))) : (((var_1_12 < (var_1_16 / var_1_8)) || ((var_1_5 && var_1_7) && var_1_1)) ? (var_1_6 == ((unsigned char) var_1_7)) : 1))) && ((((((((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) > (var_1_12)) ? (((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) : (var_1_12))) <= (50 * var_1_8)) ? (var_1_9 == ((double) var_1_10)) : 1)) && (((var_1_7 && var_1_14) || (! var_1_5)) ? (var_1_11 == ((double) var_1_10)) : 1)) && (last_1_var_1_14 ? ((var_1_10 >= (- last_1_var_1_9)) ? ((var_1_8 != last_1_var_1_16) ? (var_1_12 == ((unsigned char) var_1_13)) : (var_1_12 == ((unsigned char) 50))) : (var_1_12 == ((unsigned char) var_1_13))) : (var_1_12 == ((unsigned char) var_1_13)))) && (((var_1_13 % (5u + 256u)) <= var_1_16) ? (((var_1_13 + 16) >= var_1_16) ? (var_1_14 == ((unsigned char) var_1_7)) : (var_1_14 == ((unsigned char) var_1_7))) : 1)) && (var_1_15 == ((float) var_1_10))) && (var_1_16 == ((signed long int) last_1_var_1_12)) ; [L125] RET, EXPR property() [L125] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=57, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 604 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 594 mSDsluCounter, 981 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 687 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 790 IncrementalHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 294 mSDtfsCounter, 790 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=4, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 215 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 587 SizeOfPredicates, 12 NumberOfNonLiveVariables, 909 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 720/720 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 [2023-11-19 07:42:00,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu --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 d607f3879345041e6460d015c785fbf73afb45a0aff70b1106cf7b1382739630 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:03,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:03,691 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:42:03,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:03,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:03,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:03,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:03,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:03,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:03,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:03,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:03,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:03,761 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:03,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:03,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:03,765 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:03,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:03,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:03,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:03,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:03,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:03,768 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:03,769 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:42:03,770 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:42:03,770 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:03,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:03,771 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:03,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:03,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:03,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:03,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:03,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:03,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:03,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:03,776 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:42:03,777 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:42:03,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:03,777 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:03,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:03,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:03,779 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:42:03,780 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:03,780 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_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d607f3879345041e6460d015c785fbf73afb45a0aff70b1106cf7b1382739630 [2023-11-19 07:42:04,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:04,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:04,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:04,248 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:04,249 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:04,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i [2023-11-19 07:42:07,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:07,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:07,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i [2023-11-19 07:42:07,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data/e7c657d85/93777e3d62e643e18c330e18ca552bc8/FLAGd6c52d7a7 [2023-11-19 07:42:07,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/data/e7c657d85/93777e3d62e643e18c330e18ca552bc8 [2023-11-19 07:42:07,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:07,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:07,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:07,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:07,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:07,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:07" (1/1) ... [2023-11-19 07:42:07,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da65974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:07, skipping insertion in model container [2023-11-19 07:42:07,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:07" (1/1) ... [2023-11-19 07:42:07,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:07,939 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_4a3a4493-0a5c-4773-a238-6894817744b3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i[915,928] [2023-11-19 07:42:07,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:08,015 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:08,029 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_4a3a4493-0a5c-4773-a238-6894817744b3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-68.i[915,928] [2023-11-19 07:42:08,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:08,104 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:08,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08 WrapperNode [2023-11-19 07:42:08,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:08,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:08,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:08,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:08,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,201 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-19 07:42:08,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:08,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:08,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:08,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:08,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:08,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:08,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:08,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:08,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (1/1) ... [2023-11-19 07:42:08,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:08,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:08,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:08,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:42:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:42:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:42:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:08,473 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:08,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:09,354 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:09,363 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:09,364 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:42:09,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:09 BoogieIcfgContainer [2023-11-19 07:42:09,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:09,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:09,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:09,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:09,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:07" (1/3) ... [2023-11-19 07:42:09,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da707d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:09, skipping insertion in model container [2023-11-19 07:42:09,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:08" (2/3) ... [2023-11-19 07:42:09,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da707d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:09, skipping insertion in model container [2023-11-19 07:42:09,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:09" (3/3) ... [2023-11-19 07:42:09,378 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-68.i [2023-11-19 07:42:09,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:09,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:42:09,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:09,453 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;@1d8a2536, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:09,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:42:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:42:09,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:42:09,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:09,471 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:09,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:09,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:09,477 INFO L85 PathProgramCache]: Analyzing trace with hash 252236850, now seen corresponding path program 1 times [2023-11-19 07:42:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:42:09,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484713935] [2023-11-19 07:42:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:09,507 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 [2023-11-19 07:42:09,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:42:09,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:42:09,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:09,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:42:09,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-19 07:42:09,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:09,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:42:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484713935] [2023-11-19 07:42:09,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484713935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:09,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:09,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916532524] [2023-11-19 07:42:09,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:09,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:42:09,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:42:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:42:09,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:09,841 INFO L87 Difference]: Start difference. First operand has 50 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:42:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:09,869 INFO L93 Difference]: Finished difference Result 97 states and 151 transitions. [2023-11-19 07:42:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:42:09,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2023-11-19 07:42:09,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:09,879 INFO L225 Difference]: With dead ends: 97 [2023-11-19 07:42:09,879 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 07:42:09,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:09,887 INFO L413 NwaCegarLoop]: 69 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, 69 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 [2023-11-19 07:42:09,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 07:42:09,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 07:42:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:42:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2023-11-19 07:42:09,932 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 75 [2023-11-19 07:42:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:09,932 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2023-11-19 07:42:09,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:42:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2023-11-19 07:42:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:42:09,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:09,938 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:09,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:10,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:10,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:10,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash -549701970, now seen corresponding path program 1 times [2023-11-19 07:42:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:42:10,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717645598] [2023-11-19 07:42:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:10,150 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 [2023-11-19 07:42:10,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:42:10,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:42:10,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:10,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:42:10,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:42:10,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:10,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:42:10,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717645598] [2023-11-19 07:42:10,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717645598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:10,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:10,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:42:10,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116414440] [2023-11-19 07:42:10,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:10,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:42:10,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:42:10,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:42:10,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:10,937 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:42:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:12,434 INFO L93 Difference]: Finished difference Result 193 states and 274 transitions. [2023-11-19 07:42:12,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:42:12,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2023-11-19 07:42:12,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:12,448 INFO L225 Difference]: With dead ends: 193 [2023-11-19 07:42:12,448 INFO L226 Difference]: Without dead ends: 150 [2023-11-19 07:42:12,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:42:12,450 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 231 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:12,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 281 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 07:42:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-19 07:42:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 74. [2023-11-19 07:42:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 51 states have internal predecessors, (66), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:42:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 106 transitions. [2023-11-19 07:42:12,499 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 106 transitions. Word has length 75 [2023-11-19 07:42:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:12,500 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 106 transitions. [2023-11-19 07:42:12,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:42:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 106 transitions. [2023-11-19 07:42:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:42:12,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:12,503 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:12,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:12,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:12,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:12,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:12,711 INFO L85 PathProgramCache]: Analyzing trace with hash 151362608, now seen corresponding path program 1 times [2023-11-19 07:42:12,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:42:12,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984217932] [2023-11-19 07:42:12,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:12,712 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 [2023-11-19 07:42:12,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:42:12,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:42:12,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:12,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:42:12,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:42:13,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:13,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:42:13,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984217932] [2023-11-19 07:42:13,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984217932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:13,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:13,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:42:13,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534954059] [2023-11-19 07:42:13,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:13,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:13,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:42:13,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:13,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:13,033 INFO L87 Difference]: Start difference. First operand 74 states and 106 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:42:13,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:13,282 INFO L93 Difference]: Finished difference Result 117 states and 168 transitions. [2023-11-19 07:42:13,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:42:13,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2023-11-19 07:42:13,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:13,293 INFO L225 Difference]: With dead ends: 117 [2023-11-19 07:42:13,293 INFO L226 Difference]: Without dead ends: 74 [2023-11-19 07:42:13,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:42:13,295 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 68 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:13,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 101 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:42:13,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-19 07:42:13,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-19 07:42:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:42:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2023-11-19 07:42:13,314 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 75 [2023-11-19 07:42:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:13,315 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2023-11-19 07:42:13,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:42:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2023-11-19 07:42:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:42:13,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:13,318 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:13,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:13,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:42:13,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:13,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:13,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1634025297, now seen corresponding path program 1 times [2023-11-19 07:42:13,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:42:13,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259737064] [2023-11-19 07:42:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:13,526 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 [2023-11-19 07:42:13,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:42:13,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:42:13,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:42:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:13,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 07:42:13,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 109 proven. 30 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-19 07:42:15,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:16,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:42:16,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259737064] [2023-11-19 07:42:16,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259737064] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:42:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [827542938] [2023-11-19 07:42:16,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:16,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 07:42:16,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/cvc4 [2023-11-19 07:42:16,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 07:42:17,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3a4493-0a5c-4773-a238-6894817744b3/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 07:42:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:17,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 07:42:17,668 INFO L285 TraceCheckSpWp]: Computing forward predicates...