./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:50,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:50,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:49:50,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:50,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:50,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:50,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:50,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:50,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:50,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:50,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:50,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:50,813 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:50,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:50,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:50,819 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:50,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:50,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:50,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:50,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:50,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:50,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:50,823 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:50,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:50,824 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:50,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:50,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:50,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:50,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:50,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:50,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:50,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:50,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:50,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:50,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:50,830 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:50,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:50,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:50,831 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:50,831 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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 [2023-11-19 07:49:51,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:51,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:51,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:51,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:51,218 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:51,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2023-11-19 07:49:54,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:54,638 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:54,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2023-11-19 07:49:54,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data/a2b78c8ec/7c62251adb504d7ba8000ecaddddfb85/FLAG1438099af [2023-11-19 07:49:54,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data/a2b78c8ec/7c62251adb504d7ba8000ecaddddfb85 [2023-11-19 07:49:54,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:54,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:54,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:54,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:54,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:54,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:54,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a2b28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54, skipping insertion in model container [2023-11-19 07:49:54,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:54,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:54,867 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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2023-11-19 07:49:54,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:54,915 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:54,928 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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2023-11-19 07:49:54,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:54,965 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:54,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54 WrapperNode [2023-11-19 07:49:54,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:54,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:54,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:54,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:54,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:54,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,015 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-11-19 07:49:55,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:55,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:55,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:55,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:55,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:55,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:55,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:55,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:55,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (1/1) ... [2023-11-19 07:49:55,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:55,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:55,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:55,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:49:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:49:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:49:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:55,239 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:55,242 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:55,608 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:55,621 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:55,621 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:49:55,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:55 BoogieIcfgContainer [2023-11-19 07:49:55,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:55,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:55,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:55,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:55,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:54" (1/3) ... [2023-11-19 07:49:55,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1622aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:55, skipping insertion in model container [2023-11-19 07:49:55,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:54" (2/3) ... [2023-11-19 07:49:55,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1622aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:55, skipping insertion in model container [2023-11-19 07:49:55,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:55" (3/3) ... [2023-11-19 07:49:55,636 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-36.i [2023-11-19 07:49:55,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:55,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:55,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:55,709 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;@1eac1a18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:55,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:49:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:49:55,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:55,726 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:55,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:55,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1276548251, now seen corresponding path program 1 times [2023-11-19 07:49:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:55,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043738335] [2023-11-19 07:49:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:49:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:49:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:49:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:49:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 07:49:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:49:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:49:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:49:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:49:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:49:56,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043738335] [2023-11-19 07:49:56,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043738335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:56,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:56,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:56,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062566100] [2023-11-19 07:49:56,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:56,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:56,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:56,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:56,215 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:49:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:56,241 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2023-11-19 07:49:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:56,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2023-11-19 07:49:56,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:56,251 INFO L225 Difference]: With dead ends: 73 [2023-11-19 07:49:56,252 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 07:49:56,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 07:49:56,259 INFO L413 NwaCegarLoop]: 49 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, 49 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 07:49:56,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:56,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 07:49:56,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 07:49:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:49:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2023-11-19 07:49:56,306 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 64 [2023-11-19 07:49:56,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:56,306 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2023-11-19 07:49:56,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:49:56,307 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-19 07:49:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:49:56,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:56,311 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:56,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:49:56,312 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:56,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:56,313 INFO L85 PathProgramCache]: Analyzing trace with hash 485064543, now seen corresponding path program 1 times [2023-11-19 07:49:56,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:56,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280389310] [2023-11-19 07:49:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:56,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:56,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:56,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:56,579 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:49:56,581 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:49:56,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:49:56,587 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:49:56,591 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:49:56,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:49:56 BoogieIcfgContainer [2023-11-19 07:49:56,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:49:56,646 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:49:56,646 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:49:56,647 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:49:56,647 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:55" (3/4) ... [2023-11-19 07:49:56,649 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:49:56,651 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:49:56,652 INFO L158 Benchmark]: Toolchain (without parser) took 1975.15ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 76.8MB in the end (delta: 23.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-19 07:49:56,652 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:56,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.05ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 87.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:49:56,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.92ms. Allocated memory is still 132.1MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:56,654 INFO L158 Benchmark]: Boogie Preprocessor took 40.60ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 84.2MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:49:56,655 INFO L158 Benchmark]: RCFGBuilder took 567.11ms. Allocated memory is still 132.1MB. Free memory was 84.2MB in the beginning and 70.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:49:56,655 INFO L158 Benchmark]: TraceAbstraction took 1017.63ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 76.8MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:56,656 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 132.1MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:56,659 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.05ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 87.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.92ms. Allocated memory is still 132.1MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.60ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 84.2MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 567.11ms. Allocated memory is still 132.1MB. Free memory was 84.2MB in the beginning and 70.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1017.63ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 76.8MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 132.1MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 77. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] float var_1_6 = 2.375; [L25] float var_1_7 = 10.8; [L26] double var_1_9 = 9.6; [L27] double var_1_12 = 128.5; [L28] unsigned char var_1_13 = 128; [L29] float var_1_14 = 8.5; [L30] unsigned char var_1_15 = 128; [L31] unsigned char last_1_var_1_13 = 128; VAL [isInitial=0, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L81] isInitial = 1 [L82] FCALL initially() [L83] COND TRUE 1 [L84] CALL updateLastVariables() [L74] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=0, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L84] RET updateLastVariables() [L85] CALL updateVariables() [L57] var_1_4 = __VERIFIER_nondet_uchar() [L58] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L58] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L60] var_1_6 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=54/5, var_1_9=48/5] [L61] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=54/5, var_1_9=48/5] [L62] var_1_7 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L63] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L64] var_1_12 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L65] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L66] var_1_14 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L67] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L68] CALL assume_abort_if_not(var_1_14 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L68] RET assume_abort_if_not(var_1_14 != 0.0F) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L69] var_1_15 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L70] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L71] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L71] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=48/5] [L85] RET updateVariables() [L86] CALL step() [L35] COND TRUE ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < (last_1_var_1_13 + last_1_var_1_13) [L36] var_1_9 = var_1_12 VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=128, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] [L38] COND TRUE var_1_9 <= (16.2f / var_1_14) [L39] var_1_13 = (var_1_15 - 5) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=249, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] [L41] unsigned char stepLocal_0 = var_1_9 > var_1_9; VAL [isInitial=1, last_1_var_1_13=128, stepLocal_0=0, var_1_12=257, var_1_13=249, var_1_14=254, var_1_15=254, var_1_1=1, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] [L42] COND FALSE !(stepLocal_0 && var_1_4) [L53] var_1_1 = var_1_13 VAL [isInitial=1, last_1_var_1_13=128, stepLocal_0=0, var_1_12=257, var_1_13=249, var_1_14=254, var_1_15=254, var_1_1=249, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] [L86] RET step() [L87] CALL, EXPR property() [L77-L78] return ((((var_1_9 > var_1_9) && var_1_4) ? ((((((var_1_9) > ((- var_1_9))) ? (var_1_9) : ((- var_1_9)))) != var_1_9) ? ((! (var_1_9 >= (var_1_6 - var_1_7))) ? (var_1_1 == ((unsigned long int) var_1_13)) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) && ((((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < (last_1_var_1_13 + last_1_var_1_13)) ? (var_1_9 == ((double) var_1_12)) : 1)) && ((var_1_9 <= (16.2f / var_1_14)) ? (var_1_13 == ((unsigned char) (var_1_15 - 5))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=249, var_1_14=254, var_1_15=254, var_1_1=249, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=249, var_1_14=254, var_1_15=254, var_1_1=249, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=128, var_1_12=257, var_1_13=249, var_1_14=254, var_1_15=254, var_1_1=249, var_1_4=1, var_1_6=256, var_1_7=255, var_1_9=257] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 49 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 07:49:56,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:59,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:59,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:49:59,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:59,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:59,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:59,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:59,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:59,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:59,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:59,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:59,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:59,598 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:59,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:59,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:59,601 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:59,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:59,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:59,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:59,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:59,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:59,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:49:59,604 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:49:59,604 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:49:59,605 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:59,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:59,606 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:59,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:59,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:59,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:59,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:59,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:59,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:59,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:59,609 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:49:59,610 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:49:59,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:59,610 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:59,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:59,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:59,611 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:49:59,612 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:59,612 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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0106173d0264f3b7073aa037c767f5a06a37b054d6eaa32bc9517002adc60cc2 [2023-11-19 07:50:00,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:00,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:00,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:00,053 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:00,053 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:00,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2023-11-19 07:50:03,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:03,580 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:03,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i [2023-11-19 07:50:03,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data/3efce2821/f7a24c19f6324f33a8bf71a6984928ac/FLAGbe5233808 [2023-11-19 07:50:03,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/data/3efce2821/f7a24c19f6324f33a8bf71a6984928ac [2023-11-19 07:50:03,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:03,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:03,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:03,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:03,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:03,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:03,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c13b119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03, skipping insertion in model container [2023-11-19 07:50:03,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:03,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:03,825 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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2023-11-19 07:50:03,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:03,877 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:03,890 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_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-36.i[915,928] [2023-11-19 07:50:03,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:03,927 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:03,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03 WrapperNode [2023-11-19 07:50:03,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:03,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:03,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:03,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:03,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:03,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:03,984 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-11-19 07:50:03,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:03,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:03,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:03,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:03,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:03,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:04,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:04,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:04,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:04,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (1/1) ... [2023-11-19 07:50:04,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:04,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:04,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:04,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:50:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:50:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:50:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:04,203 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:04,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:09,768 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:09,778 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:09,778 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:50:09,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:09 BoogieIcfgContainer [2023-11-19 07:50:09,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:09,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:09,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:09,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:09,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:03" (1/3) ... [2023-11-19 07:50:09,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eceb7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:09, skipping insertion in model container [2023-11-19 07:50:09,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:03" (2/3) ... [2023-11-19 07:50:09,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eceb7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:09, skipping insertion in model container [2023-11-19 07:50:09,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:09" (3/3) ... [2023-11-19 07:50:09,793 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-36.i [2023-11-19 07:50:09,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:09,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:50:09,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:09,874 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;@48163627, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:09,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:50:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:50:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:50:09,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:09,891 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:50:09,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:09,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1276548251, now seen corresponding path program 1 times [2023-11-19 07:50:09,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:50:09,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357094669] [2023-11-19 07:50:09,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:09,922 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 07:50:09,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:50:09,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 07:50:09,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 07:50:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:50:10,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-19 07:50:10,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:10,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:50:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357094669] [2023-11-19 07:50:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357094669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:10,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:10,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657657796] [2023-11-19 07:50:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:10,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:50:10,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:50:10,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:50:10,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:50:10,488 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:50:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:10,525 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2023-11-19 07:50:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:50:10,528 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2023-11-19 07:50:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:10,537 INFO L225 Difference]: With dead ends: 73 [2023-11-19 07:50:10,537 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 07:50:10,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 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 07:50:10,547 INFO L413 NwaCegarLoop]: 49 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, 49 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 07:50:10,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:10,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 07:50:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 07:50:10,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:50:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2023-11-19 07:50:10,603 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 64 [2023-11-19 07:50:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:10,603 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2023-11-19 07:50:10,604 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:50:10,604 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-19 07:50:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:50:10,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:10,610 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:50:10,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 07:50:10,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 07:50:10,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:10,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 485064543, now seen corresponding path program 1 times [2023-11-19 07:50:10,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:50:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989771263] [2023-11-19 07:50:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:10,823 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 07:50:10,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:50:10,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 07:50:10,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0064d1e6-0ba5-470d-a5ec-eaa6cacd92ee/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 07:50:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:50:11,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:52,661 WARN L293 SmtUtils]: Spent 9.82s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)