./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:22:54,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:22:54,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:22:54,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:22:54,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:22:54,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:22:54,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:22:54,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:22:54,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:22:54,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:22:54,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:22:54,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:22:54,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:22:54,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:22:54,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:22:54,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:22:54,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:22:54,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:22:54,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:22:54,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:22:54,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:22:54,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:22:54,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:22:54,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:22:54,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:22:54,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:22:54,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:22:54,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:22:54,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:22:54,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:22:54,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:22:54,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:22:54,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:22:54,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:22:54,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:22:54,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:22:54,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:22:54,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:22:54,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:22:54,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:22:54,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:22:54,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:22:54,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:22:54,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:22:54,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:22:54,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:22:54,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:22:54,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:22:54,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:22:54,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:22:54,838 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:22:54,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:22:54,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:22:54,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:22:54,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:22:54,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:22:54,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:22:54,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:22:54,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:22:54,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:22:54,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:22:54,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:22:54,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:22:54,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:22:54,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:22:54,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:22:54,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:22:54,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:22:54,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:22:54,843 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:22:54,844 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:22:54,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:22:54,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-11-20 11:22:55,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:22:55,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:22:55,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:22:55,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:22:55,140 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:22:55,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-20 11:22:58,198 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:22:58,504 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:22:58,505 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-20 11:22:58,516 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data/2e8bbaa15/0c5b7e0f4b56454e832a37acf95432e5/FLAG9007a1d4d [2022-11-20 11:22:58,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data/2e8bbaa15/0c5b7e0f4b56454e832a37acf95432e5 [2022-11-20 11:22:58,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:22:58,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:22:58,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:22:58,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:22:58,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:22:58,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:22:58" (1/1) ... [2022-11-20 11:22:58,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7427a71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:58, skipping insertion in model container [2022-11-20 11:22:58,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:22:58" (1/1) ... [2022-11-20 11:22:58,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:22:58,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:22:58,749 WARN L237 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-20 11:22:58,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:22:58,892 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:22:58,904 WARN L237 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-20 11:22:59,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:22:59,028 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:22:59,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59 WrapperNode [2022-11-20 11:22:59,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:22:59,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:22:59,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:22:59,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:22:59,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,102 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 413 [2022-11-20 11:22:59,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:22:59,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:22:59,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:22:59,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:22:59,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:22:59,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:22:59,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:22:59,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:22:59,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (1/1) ... [2022-11-20 11:22:59,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:22:59,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:59,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:22:59,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:22:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:22:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:22:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:22:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:22:59,456 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:22:59,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:01,290 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:23:01,304 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:23:01,304 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:23:01,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:01 BoogieIcfgContainer [2022-11-20 11:23:01,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:23:01,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:23:01,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:23:01,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:23:01,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:22:58" (1/3) ... [2022-11-20 11:23:01,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370948c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:01, skipping insertion in model container [2022-11-20 11:23:01,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:59" (2/3) ... [2022-11-20 11:23:01,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370948c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:01, skipping insertion in model container [2022-11-20 11:23:01,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:01" (3/3) ... [2022-11-20 11:23:01,320 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-20 11:23:01,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:23:01,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:23:01,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:23:01,422 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=LoopsAndPotentialCycles, 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;@6b1de33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:23:01,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:23:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:23:01,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:01,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:01,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:01,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-11-20 11:23:01,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:23:01,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200495306] [2022-11-20 11:23:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:01,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:23:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:23:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:01,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:23:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:23:01,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:23:01,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200495306] [2022-11-20 11:23:01,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200495306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:23:01,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:23:01,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:23:01,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708413583] [2022-11-20 11:23:01,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:23:01,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:23:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:23:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:23:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:23:02,000 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:02,019 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-20 11:23:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:23:02,022 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-20 11:23:02,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:02,030 INFO L225 Difference]: With dead ends: 32 [2022-11-20 11:23:02,031 INFO L226 Difference]: Without dead ends: 15 [2022-11-20 11:23:02,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:23:02,040 INFO L413 NwaCegarLoop]: 16 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, 16 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 [2022-11-20 11:23:02,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:23:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-20 11:23:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-20 11:23:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:02,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-20 11:23:02,083 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-11-20 11:23:02,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:02,084 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-20 11:23:02,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:02,084 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-20 11:23:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:23:02,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:02,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:02,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:23:02,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-11-20 11:23:02,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:23:02,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123884328] [2022-11-20 11:23:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:02,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:23:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:23:03,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:23:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:23:04,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:23:04,672 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:23:04,674 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:23:04,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:23:04,680 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:23:04,683 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:23:04,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:23:04,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:23:04 BoogieIcfgContainer [2022-11-20 11:23:04,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:23:04,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:23:04,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:23:04,777 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:23:04,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:01" (3/4) ... [2022-11-20 11:23:04,780 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:23:04,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:23:04,781 INFO L158 Benchmark]: Toolchain (without parser) took 6241.89ms. Allocated memory was 234.9MB in the beginning and 293.6MB in the end (delta: 58.7MB). Free memory was 200.4MB in the beginning and 255.3MB in the end (delta: -54.9MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-11-20 11:23:04,782 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory was 89.6MB in the beginning and 89.5MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:23:04,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.35ms. Allocated memory is still 234.9MB. Free memory was 200.4MB in the beginning and 178.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 11:23:04,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.43ms. Allocated memory is still 234.9MB. Free memory was 178.6MB in the beginning and 173.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:23:04,783 INFO L158 Benchmark]: Boogie Preprocessor took 60.99ms. Allocated memory is still 234.9MB. Free memory was 173.3MB in the beginning and 170.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:23:04,784 INFO L158 Benchmark]: RCFGBuilder took 2141.83ms. Allocated memory was 234.9MB in the beginning and 293.6MB in the end (delta: 58.7MB). Free memory was 170.3MB in the beginning and 205.4MB in the end (delta: -35.1MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. [2022-11-20 11:23:04,785 INFO L158 Benchmark]: TraceAbstraction took 3465.55ms. Allocated memory is still 293.6MB. Free memory was 204.3MB in the beginning and 255.3MB in the end (delta: -51.0MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. [2022-11-20 11:23:04,785 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 293.6MB. Free memory is still 255.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:23:04,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory was 89.6MB in the beginning and 89.5MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.35ms. Allocated memory is still 234.9MB. Free memory was 200.4MB in the beginning and 178.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.43ms. Allocated memory is still 234.9MB. Free memory was 178.6MB in the beginning and 173.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.99ms. Allocated memory is still 234.9MB. Free memory was 173.3MB in the beginning and 170.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2141.83ms. Allocated memory was 234.9MB in the beginning and 293.6MB in the end (delta: 58.7MB). Free memory was 170.3MB in the beginning and 205.4MB in the end (delta: -35.1MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3465.55ms. Allocated memory is still 293.6MB. Free memory was 204.3MB in the beginning and 255.3MB in the end (delta: -51.0MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 293.6MB. Free memory is still 255.3MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 180, overapproximation of bitwiseAnd at line 168, overapproximation of bitwiseComplement at line 294, overapproximation of bitwiseXor at line 292. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L29] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 16); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (16 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L37] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 32); [L38] const SORT_20 msb_SORT_20 = (SORT_20)1 << (32 - 1); [L40] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 17); [L41] const SORT_23 msb_SORT_23 = (SORT_23)1 << (17 - 1); [L43] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 18); [L44] const SORT_26 msb_SORT_26 = (SORT_26)1 << (18 - 1); [L46] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 19); [L47] const SORT_29 msb_SORT_29 = (SORT_29)1 << (19 - 1); [L49] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 20); [L50] const SORT_32 msb_SORT_32 = (SORT_32)1 << (20 - 1); [L52] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 21); [L53] const SORT_35 msb_SORT_35 = (SORT_35)1 << (21 - 1); [L55] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 22); [L56] const SORT_38 msb_SORT_38 = (SORT_38)1 << (22 - 1); [L58] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 23); [L59] const SORT_41 msb_SORT_41 = (SORT_41)1 << (23 - 1); [L61] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 24); [L62] const SORT_44 msb_SORT_44 = (SORT_44)1 << (24 - 1); [L64] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 25); [L65] const SORT_47 msb_SORT_47 = (SORT_47)1 << (25 - 1); [L67] const SORT_50 mask_SORT_50 = (SORT_50)-1 >> (sizeof(SORT_50) * 8 - 26); [L68] const SORT_50 msb_SORT_50 = (SORT_50)1 << (26 - 1); [L70] const SORT_53 mask_SORT_53 = (SORT_53)-1 >> (sizeof(SORT_53) * 8 - 27); [L71] const SORT_53 msb_SORT_53 = (SORT_53)1 << (27 - 1); [L73] const SORT_56 mask_SORT_56 = (SORT_56)-1 >> (sizeof(SORT_56) * 8 - 28); [L74] const SORT_56 msb_SORT_56 = (SORT_56)1 << (28 - 1); [L76] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 29); [L77] const SORT_59 msb_SORT_59 = (SORT_59)1 << (29 - 1); [L79] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 30); [L80] const SORT_62 msb_SORT_62 = (SORT_62)1 << (30 - 1); [L82] const SORT_72 mask_SORT_72 = (SORT_72)-1 >> (sizeof(SORT_72) * 8 - 3); [L83] const SORT_72 msb_SORT_72 = (SORT_72)1 << (3 - 1); [L85] const SORT_96 mask_SORT_96 = (SORT_96)-1 >> (sizeof(SORT_96) * 8 - 4); [L86] const SORT_96 msb_SORT_96 = (SORT_96)1 << (4 - 1); [L88] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 14); [L89] const SORT_101 msb_SORT_101 = (SORT_101)1 << (14 - 1); [L91] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 2); [L92] const SORT_105 msb_SORT_105 = (SORT_105)1 << (2 - 1); [L94] const SORT_154 mask_SORT_154 = (SORT_154)-1 >> (sizeof(SORT_154) * 8 - 7); [L95] const SORT_154 msb_SORT_154 = (SORT_154)1 << (7 - 1); [L97] const SORT_1 var_7 = 0; [L98] const SORT_1 var_8 = 1; [L99] const SORT_9 var_10 = 0; [L100] const SORT_12 var_13 = 0; [L101] const SORT_12 var_14 = 200; [L102] const SORT_72 var_73 = 5; [L103] const SORT_11 var_75 = 0; [L104] const SORT_105 var_106 = 1; [L105] const SORT_12 var_112 = 127; [L106] const SORT_11 var_119 = 64; [L107] const SORT_11 var_121 = 1; [L108] const SORT_11 var_123 = 127; [L109] const SORT_11 var_126 = 200; [L110] const SORT_72 var_131 = 4; [L111] const SORT_72 var_134 = 6; [L112] const SORT_96 var_138 = 9; [L113] const SORT_154 var_155 = 64; [L114] const SORT_72 var_166 = 0; [L115] const SORT_96 var_169 = 0; [L117] SORT_1 input_2; [L118] SORT_1 input_3; [L119] SORT_1 input_4; [L121] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_11 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L123] SORT_11 state_76 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L124] SORT_96 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L125] SORT_96 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_96; [L127] SORT_11 init_77_arg_1 = var_75; [L128] state_76 = init_77_arg_1 VAL [init_77_arg_1=0, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1] [L131] input_2 = __VERIFIER_nondet_uchar() [L132] input_3 = __VERIFIER_nondet_uchar() [L133] input_3 = input_3 & mask_SORT_1 [L134] input_4 = __VERIFIER_nondet_uchar() [L135] input_4 = input_4 & mask_SORT_1 [L137] SORT_1 var_84_arg_0 = state_5; [L138] SORT_1 var_84 = ~var_84_arg_0; [L139] SORT_1 var_85_arg_0 = var_84; [L140] SORT_1 var_85 = ~var_85_arg_0; [L141] SORT_1 var_86_arg_0 = state_5; [L142] SORT_1 var_86_arg_1 = var_85; [L143] SORT_1 var_86 = var_86_arg_0 | var_86_arg_1; [L144] var_86 = var_86 & mask_SORT_1 [L145] SORT_1 constr_87_arg_0 = var_86; VAL [constr_87_arg_0=7, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7] [L146] CALL assume_abort_if_not(constr_87_arg_0) VAL [\old(cond)=7] [L21] COND FALSE !(!cond) VAL [\old(cond)=7, cond=7] [L146] RET assume_abort_if_not(constr_87_arg_0) VAL [constr_87_arg_0=7, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7] [L147] SORT_1 var_88_arg_0 = var_8; [L148] var_88_arg_0 = var_88_arg_0 & mask_SORT_1 [L149] SORT_11 var_88 = var_88_arg_0; [L150] SORT_11 var_89_arg_0 = state_76; [L151] SORT_11 var_89_arg_1 = var_88; [L152] SORT_1 var_89 = var_89_arg_0 <= var_89_arg_1; [L153] SORT_1 var_90_arg_0 = input_4; [L154] SORT_1 var_90_arg_1 = var_89; [L155] SORT_1 var_90 = var_90_arg_0 ^ var_90_arg_1; [L156] SORT_1 var_91_arg_0 = var_90; [L157] SORT_1 var_91 = ~var_91_arg_0; [L158] SORT_1 var_92_arg_0 = var_90; [L159] SORT_1 var_92 = ~var_92_arg_0; [L160] SORT_1 var_93_arg_0 = var_91; [L161] SORT_1 var_93_arg_1 = var_92; [L162] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L163] var_93 = var_93 & mask_SORT_1 [L164] SORT_1 constr_94_arg_0 = var_93; VAL [constr_87_arg_0=7, constr_94_arg_0=1, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=253, var_90_arg_0=253, var_90_arg_1=1, var_91=255, var_91_arg_0=253, var_92=255, var_92_arg_0=253, var_93=1, var_93_arg_0=255, var_93_arg_1=255] [L165] CALL assume_abort_if_not(constr_94_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L165] RET assume_abort_if_not(constr_94_arg_0) VAL [constr_87_arg_0=7, constr_94_arg_0=1, init_77_arg_1=0, input_2=1, input_3=3, input_4=253, mask_SORT_1=1, mask_SORT_101=16383, mask_SORT_105=3, mask_SORT_11=65535, mask_SORT_12=255, mask_SORT_154=127, mask_SORT_20=4294967295, mask_SORT_23=4294967295, mask_SORT_26=4294967295, mask_SORT_29=4294967295, mask_SORT_32=4294967295, mask_SORT_35=4294967295, mask_SORT_38=4294967295, mask_SORT_41=4294967295, mask_SORT_44=4294967295, mask_SORT_47=4294967295, mask_SORT_50=4294967295, mask_SORT_53=4294967295, mask_SORT_56=4294967295, mask_SORT_59=4294967295, mask_SORT_62=4294967295, mask_SORT_72=7, mask_SORT_9=4294967295, mask_SORT_96=15, msb_SORT_1=1, msb_SORT_101=8192, msb_SORT_105=2, msb_SORT_11=32768, msb_SORT_12=128, msb_SORT_154=64, msb_SORT_20=2147483648, msb_SORT_23=65536, msb_SORT_26=131072, msb_SORT_29=262144, msb_SORT_32=524288, msb_SORT_35=1048576, msb_SORT_38=2097152, msb_SORT_41=4194304, msb_SORT_44=8388608, msb_SORT_47=16777216, msb_SORT_50=33554432, msb_SORT_53=67108864, msb_SORT_56=134217728, msb_SORT_59=268435456, msb_SORT_62=536870912, msb_SORT_72=4, msb_SORT_9=1073741824, msb_SORT_96=8, state_100=0, state_17=0, state_5=12, state_76=0, state_97=6, var_10=0, var_106=1, var_112=127, var_119=64, var_121=1, var_123=127, var_126=200, var_13=0, var_131=4, var_134=6, var_138=9, var_14=200, var_155=64, var_166=0, var_169=0, var_7=0, var_73=5, var_75=0, var_8=1, var_84=2, var_84_arg_0=12, var_85=7, var_85_arg_0=2, var_86=7, var_86_arg_0=12, var_86_arg_1=7, var_88=1, var_88_arg_0=1, var_89=1, var_89_arg_0=0, var_89_arg_1=1, var_90=253, var_90_arg_0=253, var_90_arg_1=1, var_91=255, var_91_arg_0=253, var_92=255, var_92_arg_0=253, var_93=1, var_93_arg_0=255, var_93_arg_1=255] [L167] SORT_72 var_74_arg_0 = var_73; [L168] var_74_arg_0 = var_74_arg_0 & mask_SORT_72 [L169] SORT_11 var_74 = var_74_arg_0; [L170] SORT_11 var_78_arg_0 = var_74; [L171] SORT_11 var_78_arg_1 = state_76; [L172] SORT_1 var_78 = var_78_arg_0 < var_78_arg_1; [L173] SORT_1 var_15_arg_0 = input_3; [L174] SORT_12 var_15_arg_1 = var_14; [L175] SORT_12 var_15_arg_2 = var_13; [L176] SORT_12 var_15 = var_15_arg_0 ? var_15_arg_1 : var_15_arg_2; [L177] var_15 = var_15 & mask_SORT_12 [L178] SORT_12 var_16_arg_0 = var_13; [L179] SORT_12 var_16_arg_1 = var_15; [L180] SORT_11 var_16 = ((SORT_11)var_16_arg_0 << 8) | var_16_arg_1; [L181] SORT_11 var_18_arg_0 = var_16; [L182] SORT_11 var_18_arg_1 = state_17; [L183] SORT_11 var_18 = var_18_arg_0 - var_18_arg_1; [L184] var_18 = var_18 & mask_SORT_11 [L185] SORT_11 var_19_arg_0 = var_18; [L186] SORT_1 var_19 = var_19_arg_0 >> 15; [L187] SORT_1 var_21_arg_0 = var_19; [L188] SORT_9 var_21_arg_1 = var_10; [L189] SORT_20 var_21 = ((SORT_20)var_21_arg_0 << 31) | var_21_arg_1; [L190] var_21 = var_21 & mask_SORT_20 [L191] SORT_11 var_64_arg_0 = var_18; [L192] SORT_1 var_64 = var_64_arg_0 >> 15; [L193] SORT_11 var_61_arg_0 = var_18; [L194] SORT_1 var_61 = var_61_arg_0 >> 15; [L195] SORT_11 var_58_arg_0 = var_18; [L196] SORT_1 var_58 = var_58_arg_0 >> 15; [L197] SORT_11 var_55_arg_0 = var_18; [L198] SORT_1 var_55 = var_55_arg_0 >> 15; [L199] SORT_11 var_52_arg_0 = var_18; [L200] SORT_1 var_52 = var_52_arg_0 >> 15; [L201] SORT_11 var_49_arg_0 = var_18; [L202] SORT_1 var_49 = var_49_arg_0 >> 15; [L203] SORT_11 var_46_arg_0 = var_18; [L204] SORT_1 var_46 = var_46_arg_0 >> 15; [L205] SORT_11 var_43_arg_0 = var_18; [L206] SORT_1 var_43 = var_43_arg_0 >> 15; [L207] SORT_11 var_40_arg_0 = var_18; [L208] SORT_1 var_40 = var_40_arg_0 >> 15; [L209] SORT_11 var_37_arg_0 = var_18; [L210] SORT_1 var_37 = var_37_arg_0 >> 15; [L211] SORT_11 var_34_arg_0 = var_18; [L212] SORT_1 var_34 = var_34_arg_0 >> 15; [L213] SORT_11 var_31_arg_0 = var_18; [L214] SORT_1 var_31 = var_31_arg_0 >> 15; [L215] SORT_11 var_28_arg_0 = var_18; [L216] SORT_1 var_28 = var_28_arg_0 >> 15; [L217] SORT_11 var_25_arg_0 = var_18; [L218] SORT_1 var_25 = var_25_arg_0 >> 15; [L219] SORT_11 var_22_arg_0 = var_18; [L220] SORT_1 var_22 = var_22_arg_0 >> 15; [L221] SORT_1 var_24_arg_0 = var_22; [L222] SORT_11 var_24_arg_1 = var_18; [L223] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 16) | var_24_arg_1; [L224] var_24 = var_24 & mask_SORT_23 [L225] SORT_1 var_27_arg_0 = var_25; [L226] SORT_23 var_27_arg_1 = var_24; [L227] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 17) | var_27_arg_1; [L228] var_27 = var_27 & mask_SORT_26 [L229] SORT_1 var_30_arg_0 = var_28; [L230] SORT_26 var_30_arg_1 = var_27; [L231] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 18) | var_30_arg_1; [L232] var_30 = var_30 & mask_SORT_29 [L233] SORT_1 var_33_arg_0 = var_31; [L234] SORT_29 var_33_arg_1 = var_30; [L235] SORT_32 var_33 = ((SORT_32)var_33_arg_0 << 19) | var_33_arg_1; [L236] var_33 = var_33 & mask_SORT_32 [L237] SORT_1 var_36_arg_0 = var_34; [L238] SORT_32 var_36_arg_1 = var_33; [L239] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 20) | var_36_arg_1; [L240] var_36 = var_36 & mask_SORT_35 [L241] SORT_1 var_39_arg_0 = var_37; [L242] SORT_35 var_39_arg_1 = var_36; [L243] SORT_38 var_39 = ((SORT_38)var_39_arg_0 << 21) | var_39_arg_1; [L244] var_39 = var_39 & mask_SORT_38 [L245] SORT_1 var_42_arg_0 = var_40; [L246] SORT_38 var_42_arg_1 = var_39; [L247] SORT_41 var_42 = ((SORT_41)var_42_arg_0 << 22) | var_42_arg_1; [L248] var_42 = var_42 & mask_SORT_41 [L249] SORT_1 var_45_arg_0 = var_43; [L250] SORT_41 var_45_arg_1 = var_42; [L251] SORT_44 var_45 = ((SORT_44)var_45_arg_0 << 23) | var_45_arg_1; [L252] var_45 = var_45 & mask_SORT_44 [L253] SORT_1 var_48_arg_0 = var_46; [L254] SORT_44 var_48_arg_1 = var_45; [L255] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 24) | var_48_arg_1; [L256] var_48 = var_48 & mask_SORT_47 [L257] SORT_1 var_51_arg_0 = var_49; [L258] SORT_47 var_51_arg_1 = var_48; [L259] SORT_50 var_51 = ((SORT_50)var_51_arg_0 << 25) | var_51_arg_1; [L260] var_51 = var_51 & mask_SORT_50 [L261] SORT_1 var_54_arg_0 = var_52; [L262] SORT_50 var_54_arg_1 = var_51; [L263] SORT_53 var_54 = ((SORT_53)var_54_arg_0 << 26) | var_54_arg_1; [L264] var_54 = var_54 & mask_SORT_53 [L265] SORT_1 var_57_arg_0 = var_55; [L266] SORT_53 var_57_arg_1 = var_54; [L267] SORT_56 var_57 = ((SORT_56)var_57_arg_0 << 27) | var_57_arg_1; [L268] var_57 = var_57 & mask_SORT_56 [L269] SORT_1 var_60_arg_0 = var_58; [L270] SORT_56 var_60_arg_1 = var_57; [L271] SORT_59 var_60 = ((SORT_59)var_60_arg_0 << 28) | var_60_arg_1; [L272] var_60 = var_60 & mask_SORT_59 [L273] SORT_1 var_63_arg_0 = var_61; [L274] SORT_59 var_63_arg_1 = var_60; [L275] SORT_62 var_63 = ((SORT_62)var_63_arg_0 << 29) | var_63_arg_1; [L276] var_63 = var_63 & mask_SORT_62 [L277] SORT_1 var_65_arg_0 = var_64; [L278] SORT_62 var_65_arg_1 = var_63; [L279] SORT_9 var_65 = ((SORT_9)var_65_arg_0 << 30) | var_65_arg_1; [L280] SORT_9 var_66_arg_0 = var_65; [L281] var_66_arg_0 = var_66_arg_0 & mask_SORT_9 [L282] SORT_20 var_66 = var_66_arg_0; [L283] SORT_20 var_67_arg_0 = var_21; [L284] SORT_20 var_67_arg_1 = var_66; [L285] SORT_1 var_67 = var_67_arg_0 <= var_67_arg_1; [L286] SORT_1 var_68_arg_0 = var_67; [L287] SORT_1 var_68_arg_1 = var_8; [L288] SORT_1 var_68_arg_2 = var_7; [L289] SORT_1 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L290] SORT_1 var_69_arg_0 = input_3; [L291] SORT_1 var_69_arg_1 = var_68; [L292] SORT_1 var_69 = var_69_arg_0 ^ var_69_arg_1; [L293] SORT_1 var_70_arg_0 = var_69; [L294] SORT_1 var_70 = ~var_70_arg_0; [L295] SORT_1 var_79_arg_0 = var_78; [L296] SORT_1 var_79_arg_1 = var_70; [L297] SORT_1 var_79_arg_2 = var_8; [L298] SORT_1 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L299] SORT_1 var_80_arg_0 = var_79; [L300] SORT_1 var_80 = ~var_80_arg_0; [L301] SORT_1 var_81_arg_0 = var_79; [L302] SORT_1 var_81 = ~var_81_arg_0; [L303] SORT_1 var_82_arg_0 = var_80; [L304] SORT_1 var_82_arg_1 = var_81; [L305] SORT_1 var_82 = var_82_arg_0 & var_82_arg_1; [L306] var_82 = var_82 & mask_SORT_1 [L307] SORT_1 bad_83_arg_0 = var_82; [L308] CALL __VERIFIER_assert(!(bad_83_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 2, 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, 16 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, 16 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 1.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 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 [2022-11-20 11:23:04,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:23:07,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:07,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:07,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:07,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:07,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:07,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:07,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:07,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:07,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:07,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:07,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:07,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:07,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:07,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:07,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:07,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:07,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:07,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:07,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:07,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:07,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:07,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:07,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:07,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:07,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:07,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:07,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:07,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:07,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:07,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:07,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:07,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:07,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:07,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:07,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:07,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:07,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:07,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:07,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:07,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:07,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:23:07,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:07,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:07,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:07,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:07,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:07,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:07,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:07,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:07,337 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:07,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:07,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:07,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:07,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:07,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:07,340 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:23:07,340 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:23:07,340 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:23:07,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:07,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:07,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:07,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:07,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:07,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:07,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:07,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:07,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:07,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:07,342 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:23:07,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:07,343 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:07,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:07,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:07,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:23:07,344 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de94aaabb885b39de7c063dad9a583cbef1a5037a721fe952ddb512087f6e33 [2022-11-20 11:23:07,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:07,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:07,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:07,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:07,766 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:07,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-20 11:23:10,735 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:23:11,024 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:23:11,024 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-20 11:23:11,034 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data/86f7f265b/966022a169cc4d38a47c0d0ae92f8bb5/FLAG72d293922 [2022-11-20 11:23:11,066 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/data/86f7f265b/966022a169cc4d38a47c0d0ae92f8bb5 [2022-11-20 11:23:11,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:23:11,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:23:11,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:11,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:23:11,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:23:11,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f09bb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11, skipping insertion in model container [2022-11-20 11:23:11,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:23:11,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:11,265 WARN L237 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-20 11:23:11,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:11,440 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:23:11,451 WARN L237 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_593faf19-dc4d-4d2e-afa5-f29d8cda3932/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1120,1133] [2022-11-20 11:23:11,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:11,599 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:23:11,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11 WrapperNode [2022-11-20 11:23:11,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:11,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:11,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:23:11,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:23:11,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,718 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 413 [2022-11-20 11:23:11,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:11,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:23:11,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:23:11,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:23:11,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:23:11,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:23:11,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:23:11,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:23:11,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (1/1) ... [2022-11-20 11:23:11,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:11,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:23:11,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:23:11,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:23:11,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:23:11,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:23:11,876 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:23:11,876 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:23:12,123 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:23:12,131 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:12,671 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:23:12,686 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:23:12,687 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:23:12,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:12 BoogieIcfgContainer [2022-11-20 11:23:12,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:23:12,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:23:12,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:23:12,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:23:12,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:23:11" (1/3) ... [2022-11-20 11:23:12,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75325f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:12, skipping insertion in model container [2022-11-20 11:23:12,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:11" (2/3) ... [2022-11-20 11:23:12,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75325f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:12, skipping insertion in model container [2022-11-20 11:23:12,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:12" (3/3) ... [2022-11-20 11:23:12,697 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2022-11-20 11:23:12,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:23:12,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:23:12,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:23:12,777 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=LoopsAndPotentialCycles, 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;@421c04da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:23:12,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:23:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:23:12,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:12,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:12,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:12,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:12,807 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-11-20 11:23:12,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:12,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094392648] [2022-11-20 11:23:12,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:12,828 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 [2022-11-20 11:23:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:12,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:12,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:13,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:23:13,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:23:13,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:23:13,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:13,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094392648] [2022-11-20 11:23:13,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094392648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:23:13,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:23:13,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:23:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784504447] [2022-11-20 11:23:13,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:23:13,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:23:13,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:13,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:23:13,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:23:13,240 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:13,258 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-20 11:23:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:23:13,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-20 11:23:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:13,275 INFO L225 Difference]: With dead ends: 32 [2022-11-20 11:23:13,276 INFO L226 Difference]: Without dead ends: 15 [2022-11-20 11:23:13,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:23:13,285 INFO L413 NwaCegarLoop]: 16 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, 16 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 [2022-11-20 11:23:13,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:23:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-20 11:23:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-20 11:23:13,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-20 11:23:13,324 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-11-20 11:23:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:13,325 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-20 11:23:13,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:23:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-20 11:23:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:23:13,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:13,327 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:13,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:13,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:13,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-11-20 11:23:13,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:13,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222374031] [2022-11-20 11:23:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:13,541 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 [2022-11-20 11:23:13,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:13,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:13,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:13,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:23:13,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:23:14,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:23:14,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:14,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222374031] [2022-11-20 11:23:14,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222374031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:23:14,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:23:14,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:23:14,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693283790] [2022-11-20 11:23:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:23:14,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:23:14,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:14,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:23:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:23:14,106 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:23:14,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:14,290 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-20 11:23:14,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:23:14,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-20 11:23:14,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:14,291 INFO L225 Difference]: With dead ends: 29 [2022-11-20 11:23:14,292 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 11:23:14,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:23:14,293 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:14,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:23:14,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 11:23:14,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-11-20 11:23:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:23:14,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-20 11:23:14,302 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2022-11-20 11:23:14,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:14,303 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-20 11:23:14,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:23:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-20 11:23:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 11:23:14,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:14,305 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:14,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:14,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:14,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash 322101155, now seen corresponding path program 1 times [2022-11-20 11:23:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:14,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532596165] [2022-11-20 11:23:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:14,529 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 [2022-11-20 11:23:14,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:14,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:14,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:23:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:14,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-20 11:23:14,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:23:15,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:15,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:15,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532596165] [2022-11-20 11:23:15,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532596165] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:15,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [720538325] [2022-11-20 11:23:15,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:15,688 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:15,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:23:15,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:23:15,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-20 11:23:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:16,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 11:23:16,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:23:16,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:16,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [720538325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:16,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:23:16,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-11-20 11:23:16,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054738759] [2022-11-20 11:23:16,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:23:16,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:23:16,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:23:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:23:16,722 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:23:16,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:16,948 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-11-20 11:23:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:23:16,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-11-20 11:23:16,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:16,950 INFO L225 Difference]: With dead ends: 32 [2022-11-20 11:23:16,950 INFO L226 Difference]: Without dead ends: 30 [2022-11-20 11:23:16,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:23:16,951 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:16,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 41 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 11 Unchecked, 0.2s Time] [2022-11-20 11:23:16,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-20 11:23:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2022-11-20 11:23:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 11:23:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-11-20 11:23:16,960 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 32 [2022-11-20 11:23:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:16,960 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-20 11:23:16,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:23:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-11-20 11:23:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 11:23:16,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:16,962 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-20 11:23:16,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:17,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:17,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:17,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:17,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:17,386 INFO L85 PathProgramCache]: Analyzing trace with hash -220860929, now seen corresponding path program 2 times [2022-11-20 11:23:17,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:17,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195379765] [2022-11-20 11:23:17,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:23:17,387 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 [2022-11-20 11:23:17,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:17,388 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:17,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (6)] Waiting until timeout for monitored process [2022-11-20 11:23:17,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:23:17,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:17,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-20 11:23:17,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 11:23:18,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:18,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:18,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195379765] [2022-11-20 11:23:18,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195379765] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:18,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [660753981] [2022-11-20 11:23:18,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:23:18,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:23:18,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:23:18,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-20 11:23:19,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:23:19,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:19,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 11:23:19,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 11:23:19,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:19,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [660753981] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:19,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:23:19,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-11-20 11:23:19,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777905828] [2022-11-20 11:23:19,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:23:19,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:23:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:19,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:23:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:23:19,953 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 11:23:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:20,372 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-11-20 11:23:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:23:20,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2022-11-20 11:23:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:20,376 INFO L225 Difference]: With dead ends: 43 [2022-11-20 11:23:20,376 INFO L226 Difference]: Without dead ends: 41 [2022-11-20 11:23:20,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:23:20,377 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:20,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 66 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 19 Unchecked, 0.3s Time] [2022-11-20 11:23:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-20 11:23:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-11-20 11:23:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 11:23:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-20 11:23:20,390 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 47 [2022-11-20 11:23:20,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:20,391 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-20 11:23:20,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 11:23:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-20 11:23:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 11:23:20,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:20,401 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-20 11:23:20,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:20,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:20,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:20,816 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:20,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2090804189, now seen corresponding path program 3 times [2022-11-20 11:23:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:20,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473254285] [2022-11-20 11:23:20,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:23:20,818 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 [2022-11-20 11:23:20,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:20,820 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:20,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (8)] Waiting until timeout for monitored process [2022-11-20 11:23:21,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 11:23:21,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:21,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-20 11:23:21,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 11:23:22,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:22,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:22,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473254285] [2022-11-20 11:23:22,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473254285] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:22,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1059396731] [2022-11-20 11:23:22,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:23:22,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:22,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:23:22,451 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:23:22,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-20 11:23:23,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 11:23:23,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:23,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-20 11:23:23,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 11:23:24,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:24,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1059396731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:24,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:23:24,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-11-20 11:23:24,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223941138] [2022-11-20 11:23:24,284 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:23:24,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:23:24,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:24,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:23:24,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:23:24,285 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 11:23:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:25,151 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-11-20 11:23:25,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:23:25,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2022-11-20 11:23:25,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:25,153 INFO L225 Difference]: With dead ends: 50 [2022-11-20 11:23:25,153 INFO L226 Difference]: Without dead ends: 48 [2022-11-20 11:23:25,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:23:25,154 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:25,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 118 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:23:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-20 11:23:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-20 11:23:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 11:23:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-11-20 11:23:25,168 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 62 [2022-11-20 11:23:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:25,169 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-11-20 11:23:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 11:23:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-11-20 11:23:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 11:23:25,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:25,171 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:23:25,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2022-11-20 11:23:25,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:25,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:25,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:25,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:25,580 INFO L85 PathProgramCache]: Analyzing trace with hash -497065601, now seen corresponding path program 4 times [2022-11-20 11:23:25,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:25,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259874924] [2022-11-20 11:23:25,582 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:23:25,582 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 [2022-11-20 11:23:25,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:25,583 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:25,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (10)] Waiting until timeout for monitored process [2022-11-20 11:23:26,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:23:26,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:26,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-20 11:23:26,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-20 11:23:27,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:27,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:27,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259874924] [2022-11-20 11:23:27,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259874924] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:27,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [738104959] [2022-11-20 11:23:27,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:23:27,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:27,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:23:27,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:23:27,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-20 11:23:28,356 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:23:28,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:28,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-20 11:23:28,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-20 11:23:29,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:29,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [738104959] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:29,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:23:29,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-11-20 11:23:29,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980758061] [2022-11-20 11:23:29,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:23:29,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:23:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:29,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:23:29,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:23:29,228 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 11:23:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:30,294 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2022-11-20 11:23:30,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:23:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2022-11-20 11:23:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:30,296 INFO L225 Difference]: With dead ends: 57 [2022-11-20 11:23:30,296 INFO L226 Difference]: Without dead ends: 55 [2022-11-20 11:23:30,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:23:30,297 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:30,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 152 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 11:23:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-20 11:23:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-11-20 11:23:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 11:23:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2022-11-20 11:23:30,312 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 77 [2022-11-20 11:23:30,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:30,313 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2022-11-20 11:23:30,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 11:23:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2022-11-20 11:23:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-20 11:23:30,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:30,315 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2022-11-20 11:23:30,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:30,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:30,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:30,719 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:30,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:30,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1068369757, now seen corresponding path program 5 times [2022-11-20 11:23:30,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:30,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989759063] [2022-11-20 11:23:30,721 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:23:30,721 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 [2022-11-20 11:23:30,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:30,722 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:30,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (12)] Waiting until timeout for monitored process [2022-11-20 11:23:31,636 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-11-20 11:23:31,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:31,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-20 11:23:31,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-20 11:23:32,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:32,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:23:32,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989759063] [2022-11-20 11:23:32,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989759063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:32,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [604051405] [2022-11-20 11:23:32,951 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:23:32,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:23:32,953 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:23:32,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-20 11:23:36,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-11-20 11:23:36,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:36,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 11:23:36,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:23:37,281 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-20 11:23:37,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:23:37,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [604051405] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:23:37,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:23:37,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2022-11-20 11:23:37,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935911311] [2022-11-20 11:23:37,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:23:37,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:23:37,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:23:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:23:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:23:37,428 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 11:23:38,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:38,853 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-11-20 11:23:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:23:38,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 92 [2022-11-20 11:23:38,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:38,856 INFO L225 Difference]: With dead ends: 64 [2022-11-20 11:23:38,857 INFO L226 Difference]: Without dead ends: 62 [2022-11-20 11:23:38,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:23:38,859 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:38,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 190 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 11:23:38,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-20 11:23:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2022-11-20 11:23:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 11:23:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-20 11:23:38,886 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 92 [2022-11-20 11:23:38,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:38,887 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-20 11:23:38,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 11:23:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-20 11:23:38,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-20 11:23:38,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:38,888 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2022-11-20 11:23:38,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:39,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:23:39,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:23:39,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:39,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1031686913, now seen corresponding path program 6 times [2022-11-20 11:23:39,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:23:39,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469985279] [2022-11-20 11:23:39,290 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 11:23:39,290 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 [2022-11-20 11:23:39,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:23:39,291 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:23:39,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (14)] Waiting until timeout for monitored process [2022-11-20 11:23:40,504 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-11-20 11:23:40,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:23:40,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 394 conjunts are in the unsatisfiable core [2022-11-20 11:23:40,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:15,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:15,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469985279] [2022-11-20 11:24:15,551 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-20 11:24:15,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:15,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:24:15,751 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 217075 column 7: push canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 11:24:15,756 INFO L158 Benchmark]: Toolchain (without parser) took 64685.39ms. Allocated memory was 73.4MB in the beginning and 281.0MB in the end (delta: 207.6MB). Free memory was 51.4MB in the beginning and 110.4MB in the end (delta: -59.0MB). Peak memory consumption was 149.6MB. Max. memory is 16.1GB. [2022-11-20 11:24:15,756 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:24:15,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.61ms. Allocated memory is still 73.4MB. Free memory was 51.1MB in the beginning and 51.3MB in the end (delta: -219.6kB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-11-20 11:24:15,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.33ms. Allocated memory is still 73.4MB. Free memory was 51.3MB in the beginning and 47.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:24:15,759 INFO L158 Benchmark]: Boogie Preprocessor took 54.88ms. Allocated memory is still 73.4MB. Free memory was 47.5MB in the beginning and 45.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:24:15,759 INFO L158 Benchmark]: RCFGBuilder took 913.90ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.5MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-11-20 11:24:15,760 INFO L158 Benchmark]: TraceAbstraction took 63064.02ms. Allocated memory was 90.2MB in the beginning and 281.0MB in the end (delta: 190.8MB). Free memory was 42.7MB in the beginning and 110.4MB in the end (delta: -67.6MB). Peak memory consumption was 123.3MB. Max. memory is 16.1GB. [2022-11-20 11:24:15,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.61ms. Allocated memory is still 73.4MB. Free memory was 51.1MB in the beginning and 51.3MB in the end (delta: -219.6kB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.33ms. Allocated memory is still 73.4MB. Free memory was 51.3MB in the beginning and 47.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.88ms. Allocated memory is still 73.4MB. Free memory was 47.5MB in the beginning and 45.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 913.90ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.5MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * TraceAbstraction took 63064.02ms. Allocated memory was 90.2MB in the beginning and 281.0MB in the end (delta: 190.8MB). Free memory was 42.7MB in the beginning and 110.4MB in the end (delta: -67.6MB). Peak memory consumption was 123.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 217075 column 7: push canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 217075 column 7: push canceled: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 11:24:15,982 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-20 11:24:16,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593faf19-dc4d-4d2e-afa5-f29d8cda3932/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: line 217075 column 7: push canceled