./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:57:07,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:57:07,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:57:07,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:57:07,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:57:07,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:57:07,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:57:07,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:57:07,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:57:07,776 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:57:07,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:57:07,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:57:07,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:57:07,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:57:07,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:57:07,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:57:07,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:57:07,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:57:07,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:57:07,779 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c [2024-12-02 14:57:07,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:57:07,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:57:07,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:57:07,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:57:07,996 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:57:07,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-12-02 14:57:10,574 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/10d704fd2/d6bf80b326494f20a27f05262c8e5a00/FLAGd219c3ce7 [2024-12-02 14:57:10,787 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:57:10,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-12-02 14:57:10,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/10d704fd2/d6bf80b326494f20a27f05262c8e5a00/FLAGd219c3ce7 [2024-12-02 14:57:10,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/10d704fd2/d6bf80b326494f20a27f05262c8e5a00 [2024-12-02 14:57:10,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:57:10,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:57:10,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:57:10,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:57:10,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:57:10,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:10" (1/1) ... [2024-12-02 14:57:10,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394f903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:10, skipping insertion in model container [2024-12-02 14:57:10,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:10" (1/1) ... [2024-12-02 14:57:10,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:57:10,949 WARN L250 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_70af3a58-dc93-42da-abcb-c3dcf776ac16/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-12-02 14:57:10,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:57:10,995 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:57:11,005 WARN L250 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_70af3a58-dc93-42da-abcb-c3dcf776ac16/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-12-02 14:57:11,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:57:11,033 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:57:11,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11 WrapperNode [2024-12-02 14:57:11,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:57:11,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:57:11,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:57:11,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:57:11,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,066 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-12-02 14:57:11,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:57:11,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:57:11,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:57:11,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:57:11,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,087 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:57:11,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,092 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:57:11,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:57:11,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:57:11,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:57:11,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (1/1) ... [2024-12-02 14:57:11,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:57:11,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:11,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:57:11,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:57:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:57:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:57:11,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:57:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:57:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:57:11,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:57:11,219 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:57:11,221 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:57:11,432 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 14:57:11,433 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:57:11,440 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:57:11,440 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:57:11,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:11 BoogieIcfgContainer [2024-12-02 14:57:11,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:57:11,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:57:11,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:57:11,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:57:11,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:57:10" (1/3) ... [2024-12-02 14:57:11,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3048464a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:11, skipping insertion in model container [2024-12-02 14:57:11,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:11" (2/3) ... [2024-12-02 14:57:11,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3048464a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:11, skipping insertion in model container [2024-12-02 14:57:11,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:11" (3/3) ... [2024-12-02 14:57:11,448 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-69.i [2024-12-02 14:57:11,459 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:57:11,460 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-69.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:57:11,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:57:11,514 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c6815ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:57:11,514 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:57:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:57:11,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 14:57:11,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:11,524 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:11,525 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:11,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:11,529 INFO L85 PathProgramCache]: Analyzing trace with hash 18237889, now seen corresponding path program 1 times [2024-12-02 14:57:11,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:11,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169278695] [2024-12-02 14:57:11,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:11,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 14:57:11,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169278695] [2024-12-02 14:57:11,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169278695] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:11,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925422733] [2024-12-02 14:57:11,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:11,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:11,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:11,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:11,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:57:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:11,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:57:11,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 14:57:11,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:57:11,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925422733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:11,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:57:11,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:57:11,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881241933] [2024-12-02 14:57:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:11,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:57:11,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:11,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:57:11,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:57:11,884 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 14:57:11,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:11,903 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-12-02 14:57:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:57:11,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-12-02 14:57:11,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:11,920 INFO L225 Difference]: With dead ends: 97 [2024-12-02 14:57:11,920 INFO L226 Difference]: Without dead ends: 48 [2024-12-02 14:57:11,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:57:11,925 INFO L435 NwaCegarLoop]: 70 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, 70 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 [2024-12-02 14:57:11,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:57:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-12-02 14:57:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-12-02 14:57:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:57:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2024-12-02 14:57:11,956 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 97 [2024-12-02 14:57:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:57:11,956 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2024-12-02 14:57:11,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 14:57:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2024-12-02 14:57:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 14:57:11,959 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:11,959 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:11,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:57:12,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:12,160 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:12,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1234104317, now seen corresponding path program 1 times [2024-12-02 14:57:12,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:12,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199228471] [2024-12-02 14:57:12,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:12,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 14:57:12,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165701466] [2024-12-02 14:57:12,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:12,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:12,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:12,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:12,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:57:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:57:12,353 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:57:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:57:12,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:57:12,424 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:57:12,425 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:57:12,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:57:12,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:12,629 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 14:57:12,673 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:57:12,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:57:12 BoogieIcfgContainer [2024-12-02 14:57:12,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:57:12,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:57:12,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:57:12,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:57:12,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:11" (3/4) ... [2024-12-02 14:57:12,679 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:57:12,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:57:12,680 INFO L158 Benchmark]: Toolchain (without parser) took 1869.05ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 88.2MB in the end (delta: 28.9MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-12-02 14:57:12,681 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:57:12,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.15ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 104.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:57:12,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.32ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 102.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:57:12,681 INFO L158 Benchmark]: Boogie Preprocessor took 33.09ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:57:12,682 INFO L158 Benchmark]: RCFGBuilder took 340.71ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 85.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:57:12,682 INFO L158 Benchmark]: TraceAbstraction took 1233.26ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 88.2MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:57:12,682 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 88.2MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:57:12,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.15ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 104.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.32ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 102.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.09ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.71ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 85.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1233.26ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 88.2MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 88.2MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -100; [L23] unsigned long int var_1_2 = 0; [L24] unsigned long int var_1_3 = 8; [L25] unsigned long int var_1_4 = 256; [L26] unsigned long int var_1_5 = 500; [L27] signed char var_1_7 = -64; [L28] signed char var_1_8 = -8; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 0; [L31] double var_1_11 = 4.625; [L32] double var_1_13 = 15.5; VAL [isInitial=0, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_2=0, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L106] isInitial = 1 [L107] FCALL initially() [L109] FCALL updateLastVariables() [L110] CALL updateVariables() [L75] var_1_2 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L76] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L77] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_3=8, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L78] var_1_3 = __VERIFIER_nondet_ulong() [L79] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L79] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L80] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_4=256, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L81] var_1_4 = __VERIFIER_nondet_ulong() [L82] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L82] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_4 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L83] RET assume_abort_if_not(var_1_4 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_5=500, var_1_7=-64, var_1_8=-8, var_1_9=0] [L84] var_1_5 = __VERIFIER_nondet_ulong() [L85] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L85] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L86] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=-8, var_1_9=0] [L87] var_1_8 = __VERIFIER_nondet_char() [L88] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L88] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L89] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L90] var_1_9 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0] [L91] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0] [L92] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L92] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L93] var_1_10 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L94] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L95] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_13=31/2, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L96] var_1_13 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L97] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_7=-64, var_1_8=0, var_1_9=0] [L110] RET updateVariables() [L111] CALL step() [L36] COND TRUE var_1_2 < (((((var_1_4 * var_1_5)) > (var_1_3)) ? ((var_1_4 * var_1_5)) : (var_1_3))) [L37] var_1_7 = var_1_8 VAL [isInitial=1, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L49] unsigned long int stepLocal_1 = var_1_5; [L50] unsigned long int stepLocal_0 = var_1_2 * ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))); VAL [isInitial=1, stepLocal_0=-8589934592, stepLocal_1=0, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L51] COND FALSE !(stepLocal_0 < var_1_5) VAL [isInitial=1, stepLocal_1=0, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L58] unsigned char stepLocal_3 = var_1_9; [L59] signed long int stepLocal_2 = var_1_1 + var_1_7; VAL [isInitial=1, stepLocal_1=0, stepLocal_2=-100, stepLocal_3=0, var_1_10=0, var_1_11=37/8, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L60] COND FALSE !(((var_1_7 + var_1_8) == var_1_4) && stepLocal_3) [L71] var_1_11 = var_1_13 VAL [isInitial=1, stepLocal_1=0, stepLocal_2=-100, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L111] RET step() [L112] CALL, EXPR property() [L102-L103] return ((((var_1_2 * ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < var_1_5) ? ((var_1_5 > var_1_2) ? (var_1_1 == ((signed short int) var_1_7)) : (var_1_1 == ((signed short int) var_1_7))) : 1) && ((var_1_2 < (((((var_1_4 * var_1_5)) > (var_1_3)) ? ((var_1_4 * var_1_5)) : (var_1_3)))) ? (var_1_7 == ((signed char) var_1_8)) : ((var_1_9 || var_1_10) ? (var_1_7 == ((signed char) var_1_8)) : ((var_1_3 < var_1_4) ? (var_1_7 == ((signed char) var_1_8)) : (var_1_7 == ((signed char) -4)))))) && ((((var_1_7 + var_1_8) == var_1_4) && var_1_9) ? ((! var_1_10) ? (((var_1_1 + var_1_7) != var_1_8) ? (var_1_11 == ((double) var_1_13)) : (var_1_11 == ((double) var_1_13))) : (var_1_11 == ((double) var_1_13))) : (var_1_11 == ((double) var_1_13))) ; VAL [\result=0, isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_11=2, var_1_13=2, var_1_1=-100, var_1_2=-8589934592, var_1_3=1, var_1_4=1, var_1_5=0, var_1_7=0, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 15, 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, 70 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, 70 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 812/840 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 14:57:12,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:57:14,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:57:14,653 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 14:57:14,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:57:14,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:57:14,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:57:14,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:57:14,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:57:14,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:57:14,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:57:14,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:57:14,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:57:14,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:57:14,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:57:14,682 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:57:14,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 14:57:14,683 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:57:14,684 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:57:14,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:57:14,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:57:14,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 14:57:14,685 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 14:57:14,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:57:14,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:57:14,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:57:14,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:57:14,686 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9946b8f2044511113ae8f74201f189348f6c8338b35f7642acfb4580613f868c [2024-12-02 14:57:14,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:57:14,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:57:14,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:57:14,924 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:57:14,924 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:57:14,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-12-02 14:57:17,515 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/3574029ff/4cb02d6fac2144a8b4ea9833c58899cf/FLAG691d41757 [2024-12-02 14:57:17,736 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:57:17,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i [2024-12-02 14:57:17,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/3574029ff/4cb02d6fac2144a8b4ea9833c58899cf/FLAG691d41757 [2024-12-02 14:57:18,105 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/data/3574029ff/4cb02d6fac2144a8b4ea9833c58899cf [2024-12-02 14:57:18,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:57:18,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:57:18,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:57:18,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:57:18,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:57:18,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361c5ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18, skipping insertion in model container [2024-12-02 14:57:18,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:57:18,226 WARN L250 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_70af3a58-dc93-42da-abcb-c3dcf776ac16/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-12-02 14:57:18,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:57:18,271 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:57:18,279 WARN L250 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_70af3a58-dc93-42da-abcb-c3dcf776ac16/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-69.i[913,926] [2024-12-02 14:57:18,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:57:18,310 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:57:18,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18 WrapperNode [2024-12-02 14:57:18,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:57:18,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:57:18,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:57:18,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:57:18,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,340 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-12-02 14:57:18,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:57:18,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:57:18,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:57:18,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:57:18,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,358 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:57:18,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:57:18,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:57:18,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:57:18,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:57:18,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (1/1) ... [2024-12-02 14:57:18,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:57:18,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:18,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:57:18,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:57:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:57:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 14:57:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:57:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:57:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:57:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:57:18,476 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:57:18,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:57:18,712 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 14:57:18,712 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:57:18,720 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:57:18,721 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:57:18,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:18 BoogieIcfgContainer [2024-12-02 14:57:18,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:57:18,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:57:18,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:57:18,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:57:18,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:57:18" (1/3) ... [2024-12-02 14:57:18,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45811f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:18, skipping insertion in model container [2024-12-02 14:57:18,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:57:18" (2/3) ... [2024-12-02 14:57:18,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45811f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:57:18, skipping insertion in model container [2024-12-02 14:57:18,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:18" (3/3) ... [2024-12-02 14:57:18,729 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-69.i [2024-12-02 14:57:18,743 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:57:18,744 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-69.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:57:18,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:57:18,792 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e89ff89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:57:18,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:57:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:57:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 14:57:18,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:18,802 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:18,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:18,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:18,808 INFO L85 PathProgramCache]: Analyzing trace with hash 18237889, now seen corresponding path program 1 times [2024-12-02 14:57:18,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:57:18,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461170550] [2024-12-02 14:57:18,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:18,818 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 [2024-12-02 14:57:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:57:18,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:57:18,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:57:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:18,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:57:18,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-12-02 14:57:18,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:57:18,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:57:18,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461170550] [2024-12-02 14:57:18,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461170550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:18,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:57:18,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:57:19,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290707660] [2024-12-02 14:57:19,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:19,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:57:19,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:57:19,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:57:19,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:57:19,018 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 14:57:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:19,034 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-12-02 14:57:19,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:57:19,036 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-12-02 14:57:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:19,040 INFO L225 Difference]: With dead ends: 97 [2024-12-02 14:57:19,040 INFO L226 Difference]: Without dead ends: 48 [2024-12-02 14:57:19,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:57:19,044 INFO L435 NwaCegarLoop]: 70 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, 70 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 [2024-12-02 14:57:19,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:57:19,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-12-02 14:57:19,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-12-02 14:57:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:57:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2024-12-02 14:57:19,074 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 97 [2024-12-02 14:57:19,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:57:19,075 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2024-12-02 14:57:19,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 14:57:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2024-12-02 14:57:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 14:57:19,077 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:19,077 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:19,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 14:57:19,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:57:19,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:19,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:19,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1234104317, now seen corresponding path program 1 times [2024-12-02 14:57:19,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:57:19,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58430671] [2024-12-02 14:57:19,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:19,280 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 [2024-12-02 14:57:19,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:57:19,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:57:19,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:57:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:19,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 14:57:19,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:57:37,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:57:37,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:57:37,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58430671] [2024-12-02 14:57:37,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58430671] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:37,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:57:37,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:57:37,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936115679] [2024-12-02 14:57:37,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:37,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:57:37,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:57:37,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:57:37,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:57:37,720 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:57:44,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:44,742 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2024-12-02 14:57:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:57:44,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-12-02 14:57:44,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:44,748 INFO L225 Difference]: With dead ends: 81 [2024-12-02 14:57:44,748 INFO L226 Difference]: Without dead ends: 79 [2024-12-02 14:57:44,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:57:44,749 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 141 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:57:44,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 212 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:57:44,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-12-02 14:57:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 61. [2024-12-02 14:57:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:57:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 86 transitions. [2024-12-02 14:57:44,757 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 86 transitions. Word has length 97 [2024-12-02 14:57:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:57:44,757 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 86 transitions. [2024-12-02 14:57:44,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:57:44,757 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 86 transitions. [2024-12-02 14:57:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 14:57:44,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:44,758 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:44,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:57:44,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:57:44,959 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:44,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:44,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1291265105, now seen corresponding path program 1 times [2024-12-02 14:57:44,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:57:44,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514863596] [2024-12-02 14:57:44,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:44,960 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 [2024-12-02 14:57:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:57:44,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:57:44,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:57:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:45,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 14:57:45,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:57:58,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:57:58,069 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:57:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514863596] [2024-12-02 14:57:58,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514863596] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:58,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:57:58,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:57:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148390165] [2024-12-02 14:57:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:58,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:57:58,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:57:58,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:57:58,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:57:58,071 INFO L87 Difference]: Start difference. First operand 61 states and 86 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:01,628 INFO L93 Difference]: Finished difference Result 79 states and 108 transitions. [2024-12-02 14:58:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:58:01,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-12-02 14:58:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:01,631 INFO L225 Difference]: With dead ends: 79 [2024-12-02 14:58:01,631 INFO L226 Difference]: Without dead ends: 77 [2024-12-02 14:58:01,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:58:01,632 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 100 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:01,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 241 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 14:58:01,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-12-02 14:58:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 62. [2024-12-02 14:58:01,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:58:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 88 transitions. [2024-12-02 14:58:01,638 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 88 transitions. Word has length 98 [2024-12-02 14:58:01,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:01,638 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 88 transitions. [2024-12-02 14:58:01,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:01,639 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2024-12-02 14:58:01,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 14:58:01,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:01,639 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:01,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:58:01,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:01,840 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:01,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:01,841 INFO L85 PathProgramCache]: Analyzing trace with hash -868023798, now seen corresponding path program 1 times [2024-12-02 14:58:01,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:58:01,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290783534] [2024-12-02 14:58:01,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:01,841 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 [2024-12-02 14:58:01,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:58:01,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:58:01,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 14:58:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:01,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 14:58:01,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:58:11,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:58:11,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:58:11,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290783534] [2024-12-02 14:58:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290783534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:11,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:58:11,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:58:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634017611] [2024-12-02 14:58:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:11,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:58:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:58:11,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:58:11,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:58:11,162 INFO L87 Difference]: Start difference. First operand 62 states and 88 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:19,202 INFO L93 Difference]: Finished difference Result 94 states and 128 transitions. [2024-12-02 14:58:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:58:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-12-02 14:58:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:19,209 INFO L225 Difference]: With dead ends: 94 [2024-12-02 14:58:19,209 INFO L226 Difference]: Without dead ends: 92 [2024-12-02 14:58:19,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:58:19,210 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 127 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:19,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 261 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 14:58:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-12-02 14:58:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 64. [2024-12-02 14:58:19,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:58:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2024-12-02 14:58:19,220 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 98 [2024-12-02 14:58:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:19,220 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2024-12-02 14:58:19,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2024-12-02 14:58:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 14:58:19,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:19,222 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:19,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 14:58:19,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:19,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:19,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:19,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1443199976, now seen corresponding path program 1 times [2024-12-02 14:58:19,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:58:19,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566713822] [2024-12-02 14:58:19,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:19,424 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 [2024-12-02 14:58:19,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:58:19,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:58:19,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:19,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 14:58:19,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:58:24,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:58:24,464 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:58:24,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566713822] [2024-12-02 14:58:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566713822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:58:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:58:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789565202] [2024-12-02 14:58:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:24,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:58:24,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:58:24,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:58:24,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:58:24,466 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:30,641 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2024-12-02 14:58:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:58:30,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-12-02 14:58:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:30,646 INFO L225 Difference]: With dead ends: 175 [2024-12-02 14:58:30,646 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 14:58:30,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:58:30,647 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 141 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:30,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 291 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 14:58:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 14:58:30,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 73. [2024-12-02 14:58:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:58:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 104 transitions. [2024-12-02 14:58:30,653 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 104 transitions. Word has length 99 [2024-12-02 14:58:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:30,653 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 104 transitions. [2024-12-02 14:58:30,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 104 transitions. [2024-12-02 14:58:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 14:58:30,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:30,654 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:30,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:58:30,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:30,855 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:30,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2123258346, now seen corresponding path program 1 times [2024-12-02 14:58:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:58:30,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821358466] [2024-12-02 14:58:30,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:30,856 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 [2024-12-02 14:58:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:58:30,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:58:30,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Waiting until timeout for monitored process [2024-12-02 14:58:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:30,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 14:58:30,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:58:35,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:58:35,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:58:35,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821358466] [2024-12-02 14:58:35,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821358466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:35,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:58:35,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:58:35,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260755002] [2024-12-02 14:58:35,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:35,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:58:35,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:58:35,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:58:35,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:58:35,833 INFO L87 Difference]: Start difference. First operand 73 states and 104 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:43,789 INFO L93 Difference]: Finished difference Result 123 states and 164 transitions. [2024-12-02 14:58:43,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:58:43,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-12-02 14:58:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:43,793 INFO L225 Difference]: With dead ends: 123 [2024-12-02 14:58:43,794 INFO L226 Difference]: Without dead ends: 121 [2024-12-02 14:58:43,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:58:43,794 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 130 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:43,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 352 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 14:58:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-12-02 14:58:43,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 71. [2024-12-02 14:58:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:58:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2024-12-02 14:58:43,802 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 101 transitions. Word has length 99 [2024-12-02 14:58:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:43,803 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 101 transitions. [2024-12-02 14:58:43,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2024-12-02 14:58:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 14:58:43,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:43,804 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:43,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:58:44,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:44,005 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:44,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1467296392, now seen corresponding path program 1 times [2024-12-02 14:58:44,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:58:44,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749991339] [2024-12-02 14:58:44,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:44,005 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 [2024-12-02 14:58:44,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:58:44,007 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:58:44,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:44,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 14:58:44,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:58:49,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:58:49,972 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:58:49,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749991339] [2024-12-02 14:58:49,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749991339] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:49,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:58:49,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:58:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290809451] [2024-12-02 14:58:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:49,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:58:49,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:58:49,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:58:49,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:58:49,974 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:54,578 INFO L93 Difference]: Finished difference Result 99 states and 134 transitions. [2024-12-02 14:58:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:58:54,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2024-12-02 14:58:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:54,581 INFO L225 Difference]: With dead ends: 99 [2024-12-02 14:58:54,581 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 14:58:54,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:58:54,582 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:54,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 268 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 14:58:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 14:58:54,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 65. [2024-12-02 14:58:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 47 states have (on average 1.297872340425532) internal successors, (61), 47 states have internal predecessors, (61), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:58:54,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2024-12-02 14:58:54,587 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 99 [2024-12-02 14:58:54,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:54,588 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2024-12-02 14:58:54,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:58:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2024-12-02 14:58:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 14:58:54,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:54,589 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:54,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:58:54,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:58:54,789 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:54,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash 100789354, now seen corresponding path program 1 times [2024-12-02 14:58:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:58:54,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727076184] [2024-12-02 14:58:54,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:54,790 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 [2024-12-02 14:58:54,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:58:54,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:58:54,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 (9)] Waiting until timeout for monitored process [2024-12-02 14:58:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:54,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 14:58:54,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:58:59,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:58:59,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:58:59,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727076184] [2024-12-02 14:58:59,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727076184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:59,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:58:59,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:58:59,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575857547] [2024-12-02 14:58:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:59,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:58:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:58:59,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:58:59,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:58:59,271 INFO L87 Difference]: Start difference. First operand 65 states and 91 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:59:04,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:59:04,229 INFO L93 Difference]: Finished difference Result 112 states and 150 transitions. [2024-12-02 14:59:04,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:59:04,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-12-02 14:59:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:59:04,232 INFO L225 Difference]: With dead ends: 112 [2024-12-02 14:59:04,232 INFO L226 Difference]: Without dead ends: 110 [2024-12-02 14:59:04,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:59:04,232 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 135 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:59:04,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 296 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 14:59:04,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-12-02 14:59:04,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 68. [2024-12-02 14:59:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 14:59:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2024-12-02 14:59:04,241 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 100 [2024-12-02 14:59:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:59:04,241 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2024-12-02 14:59:04,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:59:04,242 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2024-12-02 14:59:04,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 14:59:04,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:59:04,243 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:59:04,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 (9)] Ended with exit code 0 [2024-12-02 14:59:04,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:59:04,443 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:59:04,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:59:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash -292237656, now seen corresponding path program 1 times [2024-12-02 14:59:04,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:59:04,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000524952] [2024-12-02 14:59:04,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:59:04,444 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 [2024-12-02 14:59:04,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:59:04,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:59:04,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:59:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:59:04,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 14:59:04,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:59:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 14:59:08,282 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:59:08,282 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:59:08,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000524952] [2024-12-02 14:59:08,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000524952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:59:08,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:59:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:59:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069234079] [2024-12-02 14:59:08,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:59:08,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:59:08,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:59:08,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:59:08,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:59:08,284 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:59:13,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:59:13,315 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-12-02 14:59:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:59:13,317 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-12-02 14:59:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:59:13,317 INFO L225 Difference]: With dead ends: 103 [2024-12-02 14:59:13,317 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:59:13,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:59:13,319 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:59:13,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 316 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 14:59:13,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:59:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:59:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:59:13,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:59:13,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2024-12-02 14:59:13,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:59:13,320 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:59:13,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:59:13,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:59:13,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:59:13,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:59:13,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:59:13,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:59:13,525 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:59:13,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:59:14,562 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:59:14,572 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 14:59:14,573 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 14:59:14,573 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 14:59:14,573 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 14:59:14,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 14:59:14,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 14:59:14,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:59:14 BoogieIcfgContainer [2024-12-02 14:59:14,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:59:14,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:59:14,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:59:14,575 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:59:14,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:57:18" (3/4) ... [2024-12-02 14:59:14,577 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:59:14,582 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 14:59:14,585 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 14:59:14,585 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 14:59:14,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:59:14,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:59:14,657 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:59:14,657 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:59:14,657 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:59:14,658 INFO L158 Benchmark]: Toolchain (without parser) took 116550.21ms. Allocated memory was 92.3MB in the beginning and 587.2MB in the end (delta: 494.9MB). Free memory was 70.0MB in the beginning and 260.7MB in the end (delta: -190.7MB). Peak memory consumption was 302.9MB. Max. memory is 16.1GB. [2024-12-02 14:59:14,658 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:59:14,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.42ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 56.7MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:59:14,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.05ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 55.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:59:14,659 INFO L158 Benchmark]: Boogie Preprocessor took 31.83ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 53.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:59:14,659 INFO L158 Benchmark]: RCFGBuilder took 348.05ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 68.7MB in the end (delta: -15.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-12-02 14:59:14,659 INFO L158 Benchmark]: TraceAbstraction took 115851.31ms. Allocated memory was 92.3MB in the beginning and 587.2MB in the end (delta: 494.9MB). Free memory was 68.4MB in the beginning and 265.0MB in the end (delta: -196.7MB). Peak memory consumption was 299.7MB. Max. memory is 16.1GB. [2024-12-02 14:59:14,659 INFO L158 Benchmark]: Witness Printer took 82.49ms. Allocated memory is still 587.2MB. Free memory was 265.0MB in the beginning and 260.7MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:59:14,661 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.42ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 56.7MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.05ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 55.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.83ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 53.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.05ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 68.7MB in the end (delta: -15.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 115851.31ms. Allocated memory was 92.3MB in the beginning and 587.2MB in the end (delta: 494.9MB). Free memory was 68.4MB in the beginning and 265.0MB in the end (delta: -196.7MB). Peak memory consumption was 299.7MB. Max. memory is 16.1GB. * Witness Printer took 82.49ms. Allocated memory is still 587.2MB. Free memory was 265.0MB in the beginning and 260.7MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 114.8s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 47.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1005 SdHoareTripleChecker+Valid, 27.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 997 mSDsluCounter, 2307 SdHoareTripleChecker+Invalid, 24.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1796 mSDsCounter, 338 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3755 IncrementalHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 338 mSolverCounterUnsat, 511 mSDtfsCounter, 3755 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 964 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 32.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=5, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 226 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 64.4s InterpolantComputationTime, 887 NumberOfCodeBlocks, 887 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 878 ConstructedInterpolants, 0 QuantifiedInterpolants, 5997 SizeOfPredicates, 96 NumberOfNonLiveVariables, 1435 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3780/3780 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 14:59:14,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70af3a58-dc93-42da-abcb-c3dcf776ac16/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE