./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.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_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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_ea637902-9686-4ba1-a06b-2aa80d38f215/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 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:34,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:34,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:39:34,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:34,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:34,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:34,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:34,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:34,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:34,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:34,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:34,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:34,561 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:34,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:34,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:34,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:34,565 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:34,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:34,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:34,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:34,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:34,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:34,568 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:34,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:34,569 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:34,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:34,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:34,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:34,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:34,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:34,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:34,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:34,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:34,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:34,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:34,575 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:34,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:34,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:34,576 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:34,576 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_ea637902-9686-4ba1-a06b-2aa80d38f215/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 [2023-11-19 07:39:34,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:34,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:34,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:34,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:34,924 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:34,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-19 07:39:38,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:38,413 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:38,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-19 07:39:38,424 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data/a928b727d/48268cad2d424407b09cafe497b58839/FLAG53f5ffaea [2023-11-19 07:39:38,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data/a928b727d/48268cad2d424407b09cafe497b58839 [2023-11-19 07:39:38,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:38,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:38,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:38,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:38,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:38,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad2d33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38, skipping insertion in model container [2023-11-19 07:39:38,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:38,652 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_ea637902-9686-4ba1-a06b-2aa80d38f215/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-19 07:39:38,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:38,708 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:38,722 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_ea637902-9686-4ba1-a06b-2aa80d38f215/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-19 07:39:38,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:38,763 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:38,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38 WrapperNode [2023-11-19 07:39:38,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:38,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:38,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:38,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:38,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,816 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-11-19 07:39:38,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:38,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:38,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:38,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:38,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:38,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:38,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:38,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:38,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (1/1) ... [2023-11-19 07:39:38,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:38,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:38,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:38,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:39:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:39:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:39,032 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:39,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:39,393 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:39,400 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:39,401 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:39,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:39 BoogieIcfgContainer [2023-11-19 07:39:39,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:39,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:39,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:39,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:39,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:38" (1/3) ... [2023-11-19 07:39:39,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3d2441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:39, skipping insertion in model container [2023-11-19 07:39:39,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:38" (2/3) ... [2023-11-19 07:39:39,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3d2441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:39, skipping insertion in model container [2023-11-19 07:39:39,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:39" (3/3) ... [2023-11-19 07:39:39,415 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-19 07:39:39,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:39,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:39,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:39,504 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;@3d0544b6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:39,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:39,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 42 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:39:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 07:39:39,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:39,526 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:39,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:39,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash 993981481, now seen corresponding path program 1 times [2023-11-19 07:39:39,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:39,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663294638] [2023-11-19 07:39:39,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:39:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:39:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:39:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:39:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:39:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:39:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:39:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:39:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:39:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:39:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:39:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:39:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:39:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:39:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:39:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:39:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 07:39:40,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663294638] [2023-11-19 07:39:40,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663294638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:40,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:40,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:40,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065444794] [2023-11-19 07:39:40,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:40,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:40,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:40,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:40,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:40,127 INFO L87 Difference]: Start difference. First operand has 60 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 42 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 07:39:40,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:40,164 INFO L93 Difference]: Finished difference Result 116 states and 191 transitions. [2023-11-19 07:39:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:40,167 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2023-11-19 07:39:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:40,176 INFO L225 Difference]: With dead ends: 116 [2023-11-19 07:39:40,176 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 07:39:40,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 07:39:40,191 INFO L413 NwaCegarLoop]: 84 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, 84 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 07:39:40,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 07:39:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-19 07:39:40,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:39:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2023-11-19 07:39:40,260 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 103 [2023-11-19 07:39:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:40,260 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2023-11-19 07:39:40,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 07:39:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-19 07:39:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 07:39:40,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:40,265 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:40,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:40,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:40,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:40,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1756459539, now seen corresponding path program 1 times [2023-11-19 07:39:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:40,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012561251] [2023-11-19 07:39:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:39:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:39:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:39:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:39:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:39:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:39:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:39:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:39:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:39:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:39:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:39:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:39:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:39:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:39:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:39:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:39:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 07:39:40,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:40,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012561251] [2023-11-19 07:39:40,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012561251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:40,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:40,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238778843] [2023-11-19 07:39:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:40,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:39:40,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:40,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:39:40,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:39:40,980 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 07:39:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:41,081 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2023-11-19 07:39:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:39:41,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2023-11-19 07:39:41,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:41,085 INFO L225 Difference]: With dead ends: 128 [2023-11-19 07:39:41,085 INFO L226 Difference]: Without dead ends: 76 [2023-11-19 07:39:41,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 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 07:39:41,088 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 41 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:41,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 235 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:41,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-19 07:39:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 62. [2023-11-19 07:39:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:39:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2023-11-19 07:39:41,104 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 103 [2023-11-19 07:39:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:41,107 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2023-11-19 07:39:41,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 07:39:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2023-11-19 07:39:41,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:39:41,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:41,110 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:41,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:41,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:41,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -23347941, now seen corresponding path program 1 times [2023-11-19 07:39:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096573364] [2023-11-19 07:39:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:39:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:39:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:39:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:39:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:39:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:39:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:39:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:39:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:39:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:39:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:39:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:39:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:39:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:39:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:39:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:39:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 07:39:41,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:41,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096573364] [2023-11-19 07:39:41,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096573364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:41,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:41,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:39:41,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845345018] [2023-11-19 07:39:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:41,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:39:41,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:41,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:39:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:41,553 INFO L87 Difference]: Start difference. First operand 62 states and 92 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 07:39:41,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:41,705 INFO L93 Difference]: Finished difference Result 137 states and 200 transitions. [2023-11-19 07:39:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:39:41,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2023-11-19 07:39:41,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:41,711 INFO L225 Difference]: With dead ends: 137 [2023-11-19 07:39:41,711 INFO L226 Difference]: Without dead ends: 78 [2023-11-19 07:39:41,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:41,722 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 32 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:41,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 302 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:41,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-19 07:39:41,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 65. [2023-11-19 07:39:41,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 47 states have (on average 1.297872340425532) internal successors, (61), 47 states have internal predecessors, (61), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:39:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2023-11-19 07:39:41,747 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 104 [2023-11-19 07:39:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:41,750 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2023-11-19 07:39:41,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 07:39:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2023-11-19 07:39:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:39:41,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:41,758 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:41,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:39:41,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:41,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2071451896, now seen corresponding path program 1 times [2023-11-19 07:39:41,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:41,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086310570] [2023-11-19 07:39:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:41,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:41,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:39:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:41,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:39:41,969 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:39:41,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:39:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:39:41,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:39:41,982 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:39:42,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 07:39:42,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated [2023-11-19 07:39:42,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 07:39:42,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated [2023-11-19 07:39:42,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 07:39:42,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:39:42 BoogieIcfgContainer [2023-11-19 07:39:42,078 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:39:42,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:39:42,078 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:39:42,079 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:39:42,079 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:39" (3/4) ... [2023-11-19 07:39:42,082 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:39:42,083 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:39:42,084 INFO L158 Benchmark]: Toolchain (without parser) took 3636.47ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 107.7MB in the beginning and 98.3MB in the end (delta: 9.5MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,085 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 155.2MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:42,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.24ms. Allocated memory is still 155.2MB. Free memory was 107.7MB in the beginning and 95.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.13ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,086 INFO L158 Benchmark]: Boogie Preprocessor took 35.49ms. Allocated memory is still 155.2MB. Free memory was 93.0MB in the beginning and 91.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:42,087 INFO L158 Benchmark]: RCFGBuilder took 550.37ms. Allocated memory is still 155.2MB. Free memory was 91.7MB in the beginning and 76.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,087 INFO L158 Benchmark]: TraceAbstraction took 2670.77ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 75.8MB in the beginning and 99.3MB in the end (delta: -23.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,088 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 186.6MB. Free memory was 99.3MB in the beginning and 98.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:42,091 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 155.2MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.24ms. Allocated memory is still 155.2MB. Free memory was 107.7MB in the beginning and 95.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.13ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.49ms. Allocated memory is still 155.2MB. Free memory was 93.0MB in the beginning and 91.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 550.37ms. Allocated memory is still 155.2MB. Free memory was 91.7MB in the beginning and 76.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2670.77ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 75.8MB in the beginning and 99.3MB in the end (delta: -23.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 186.6MB. Free memory was 99.3MB in the beginning and 98.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 57. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_6 = 1; [L25] signed short int var_1_7 = 32; [L26] signed short int var_1_8 = 20113; [L27] signed short int var_1_9 = 100; [L28] signed char var_1_10 = 100; [L29] signed char var_1_11 = -1; [L30] signed char var_1_12 = 16; [L31] float var_1_13 = 1.2; [L32] float var_1_14 = 3.6; [L33] float var_1_15 = 5.5; [L34] signed char last_1_var_1_10 = 100; VAL [isInitial=0, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L97] isInitial = 1 [L98] FCALL initially() [L99] int k_loop; [L100] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L100] COND TRUE k_loop < 1 [L101] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=1, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L101] RET updateLastVariables() [L102] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L66] var_1_6 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L67] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L68] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L68] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=32, var_1_8=20113, var_1_9=100] [L69] var_1_7 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_7 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=20113, var_1_9=100] [L70] RET assume_abort_if_not(var_1_7 >= -1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=20113, var_1_9=100] [L71] CALL assume_abort_if_not(var_1_7 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=20113, var_1_9=100] [L71] RET assume_abort_if_not(var_1_7 <= 32766) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=20113, var_1_9=100] [L72] var_1_8 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_8 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=100] [L73] RET assume_abort_if_not(var_1_8 >= 16383) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=100] [L74] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=100] [L74] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=100] [L75] var_1_9 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L78] var_1_11 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L79] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L80] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=16, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L82] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L83] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=18/5, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L84] var_1_14 = __VERIFIER_nondet_float() [L85] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L85] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=11/2, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L86] var_1_15 = __VERIFIER_nondet_float() [L87] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L87] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L102] RET updateVariables() [L103] CALL step() [L38] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L49] COND TRUE var_1_1 == var_1_7 [L50] var_1_10 = (var_1_11 + (var_1_12 + -25)) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=6/5, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L56] COND TRUE \read(var_1_6) [L57] var_1_13 = ((((16.3f) < ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f))))) ? (16.3f) : ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f)))))) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=127/2, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L103] RET step() [L104] CALL, EXPR property() [L93] EXPR (var_1_2 ? ((last_1_var_1_10 > last_1_var_1_10) ? (var_1_6 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) last_1_var_1_10))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1)) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=127/2, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L93] EXPR (var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=127/2, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L93] EXPR (var_1_2 ? ((last_1_var_1_10 > last_1_var_1_10) ? (var_1_6 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) last_1_var_1_10))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1)) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=127/2, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L93-L94] return ((var_1_2 ? ((last_1_var_1_10 > last_1_var_1_10) ? (var_1_6 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) last_1_var_1_10))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_1 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : (((100 | var_1_1) >= var_1_7) ? (var_1_10 == ((signed char) var_1_11)) : 1))) && (var_1_6 ? (var_1_13 == ((float) ((((16.3f) < ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f))))) ? (16.3f) : ((((((var_1_14 - 1.875f)) > (63.5f)) ? ((var_1_14 - 1.875f)) : (63.5f)))))))) : (var_1_13 == ((float) (var_1_14 - var_1_15)))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=127/2, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, var_1_10=-119, var_1_11=-63, var_1_12=-31, var_1_13=127/2, var_1_14=32771, var_1_15=32772, var_1_1=16, var_1_2=0, var_1_6=1, var_1_7=16, var_1_8=32766, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 621 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 265 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 415 NumberOfCodeBlocks, 415 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1440/1440 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 07:39:42,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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_ea637902-9686-4ba1-a06b-2aa80d38f215/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 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:45,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:45,207 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:39:45,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:45,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:45,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:45,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:45,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:45,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:45,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:45,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:45,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:45,276 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:45,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:45,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:45,280 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:45,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:45,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:45,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:45,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:45,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:45,284 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:39:45,284 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:39:45,285 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:39:45,285 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:45,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:45,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:45,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:45,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:45,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:45,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:45,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:45,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:45,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:45,290 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:39:45,291 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:39:45,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:45,291 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:45,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:45,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:45,293 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:39:45,293 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:45,294 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_ea637902-9686-4ba1-a06b-2aa80d38f215/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0daba001bb4159e329ea4e02bf43fad28551c83f8164fe6d87ea605497512373 [2023-11-19 07:39:45,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:45,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:45,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:45,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:45,698 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:45,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-19 07:39:49,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:49,335 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:49,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-19 07:39:49,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data/3b258b513/39d36b4c570f47d6ba6960bc75bcefec/FLAG876a900da [2023-11-19 07:39:49,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/data/3b258b513/39d36b4c570f47d6ba6960bc75bcefec [2023-11-19 07:39:49,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:49,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:49,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:49,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:49,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:49,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a47d880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49, skipping insertion in model container [2023-11-19 07:39:49,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:49,640 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_ea637902-9686-4ba1-a06b-2aa80d38f215/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-19 07:39:49,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:49,705 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:49,720 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_ea637902-9686-4ba1-a06b-2aa80d38f215/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-97.i[915,928] [2023-11-19 07:39:49,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:49,763 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:49,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49 WrapperNode [2023-11-19 07:39:49,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:49,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:49,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:49,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:49,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,844 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-11-19 07:39:49,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:49,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:49,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:49,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:49,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:49,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:49,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:49,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:49,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (1/1) ... [2023-11-19 07:39:49,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:49,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:49,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:49,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:39:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:39:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:39:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:50,072 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:50,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:51,002 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:51,010 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:51,011 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:51,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:51 BoogieIcfgContainer [2023-11-19 07:39:51,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:51,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:51,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:51,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:51,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:49" (1/3) ... [2023-11-19 07:39:51,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d041c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:51, skipping insertion in model container [2023-11-19 07:39:51,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:49" (2/3) ... [2023-11-19 07:39:51,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d041c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:51, skipping insertion in model container [2023-11-19 07:39:51,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:51" (3/3) ... [2023-11-19 07:39:51,025 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-97.i [2023-11-19 07:39:51,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:51,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:51,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:51,103 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;@9a9884a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:51,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:39:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:39:51,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:51,122 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:51,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:51,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:51,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1959647612, now seen corresponding path program 1 times [2023-11-19 07:39:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364142703] [2023-11-19 07:39:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:51,150 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 07:39:51,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:51,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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 07:39:51,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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 07:39:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:51,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:39:51,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-19 07:39:51,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:51,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:39:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364142703] [2023-11-19 07:39:51,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364142703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:51,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:51,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:51,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299050123] [2023-11-19 07:39:51,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:51,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:51,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:39:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:51,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:51,638 INFO L87 Difference]: Start difference. First operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 07:39:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:51,705 INFO L93 Difference]: Finished difference Result 98 states and 161 transitions. [2023-11-19 07:39:51,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-19 07:39:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:51,723 INFO L225 Difference]: With dead ends: 98 [2023-11-19 07:39:51,724 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 07:39:51,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 07:39:51,737 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 07:39:51,739 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 07:39:51,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 07:39:51,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 07:39:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:39:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2023-11-19 07:39:51,802 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 101 [2023-11-19 07:39:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:51,802 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2023-11-19 07:39:51,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 07:39:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2023-11-19 07:39:51,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:39:51,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:51,811 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:51,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:52,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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 07:39:52,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:52,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:52,026 INFO L85 PathProgramCache]: Analyzing trace with hash 12653632, now seen corresponding path program 1 times [2023-11-19 07:39:52,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:52,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199378232] [2023-11-19 07:39:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:52,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:39:52,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:52,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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 07:39:52,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea637902-9686-4ba1-a06b-2aa80d38f215/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 07:39:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:52,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:39:52,317 INFO L285 TraceCheckSpWp]: Computing forward predicates...