./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5191c614040da54c6fe77b0fb4d91d943009a345a9252a69568f58113a0aaaf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:57,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:57,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:59:57,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:57,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:57,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:57,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:57,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:57,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:57,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:57,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:57,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:57,828 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:57,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:57,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:57,831 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:57,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:57,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:57,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:57,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:57,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:57,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:57,837 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:59:57,838 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:57,838 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:57,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:57,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:57,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:57,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:57,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:57,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:57,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:57,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:57,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:57,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:57,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:57,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:57,847 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:57,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:57,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:57,850 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:57,850 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5191c614040da54c6fe77b0fb4d91d943009a345a9252a69568f58113a0aaaf [2023-11-19 07:59:58,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:58,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:58,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:58,253 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:58,254 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:58,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i [2023-11-19 08:00:01,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:02,117 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:02,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/sv-benchmarks/c/pthread-wmm/mix031.oepc.i [2023-11-19 08:00:02,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/data/b2c7f1b1e/0a807dd084c845738b7d301c87a31fa3/FLAG23a0837bf [2023-11-19 08:00:02,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/data/b2c7f1b1e/0a807dd084c845738b7d301c87a31fa3 [2023-11-19 08:00:02,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:02,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:02,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:02,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:02,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:02,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:02" (1/1) ... [2023-11-19 08:00:02,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f99ca3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:02, skipping insertion in model container [2023-11-19 08:00:02,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:02" (1/1) ... [2023-11-19 08:00:02,264 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:02,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:02,892 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:02,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:03,002 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:03,002 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:03,011 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:03,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03 WrapperNode [2023-11-19 08:00:03,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:03,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:03,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:03,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:03,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,127 INFO L138 Inliner]: procedures = 175, calls = 50, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 130 [2023-11-19 08:00:03,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:03,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:03,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:03,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:03,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:03,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:03,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:03,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:03,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (1/1) ... [2023-11-19 08:00:03,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:03,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:03,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:03,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:00:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:00:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:00:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:00:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:00:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:00:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:00:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:03,312 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:00:03,468 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:03,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:03,821 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:04,143 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:04,143 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:00:04,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:04 BoogieIcfgContainer [2023-11-19 08:00:04,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:04,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:04,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:04,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:04,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:02" (1/3) ... [2023-11-19 08:00:04,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19005d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:04, skipping insertion in model container [2023-11-19 08:00:04,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:03" (2/3) ... [2023-11-19 08:00:04,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19005d9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:04, skipping insertion in model container [2023-11-19 08:00:04,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:04" (3/3) ... [2023-11-19 08:00:04,177 INFO L112 eAbstractionObserver]: Analyzing ICFG mix031.oepc.i [2023-11-19 08:00:04,187 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:00:04,196 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:04,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 08:00:04,197 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:04,267 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:00:04,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2023-11-19 08:00:04,400 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-19 08:00:04,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:04,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-11-19 08:00:04,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2023-11-19 08:00:04,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 214 flow [2023-11-19 08:00:04,432 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:04,449 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 104 transitions, 214 flow [2023-11-19 08:00:04,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 104 transitions, 214 flow [2023-11-19 08:00:04,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 214 flow [2023-11-19 08:00:04,516 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-19 08:00:04,526 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:04,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-11-19 08:00:04,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 1936 [2023-11-19 08:00:08,866 INFO L134 LiptonReduction]: Checked pairs total: 5702 [2023-11-19 08:00:08,866 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-11-19 08:00:08,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:08,917 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13e0f9ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:08,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 08:00:08,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:08,927 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2023-11-19 08:00:08,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:08,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:08,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:08,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:00:08,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash 568502982, now seen corresponding path program 1 times [2023-11-19 08:00:08,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:08,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793167673] [2023-11-19 08:00:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:08,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:09,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:09,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793167673] [2023-11-19 08:00:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793167673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:09,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:09,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:00:09,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491259420] [2023-11-19 08:00:09,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:09,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:09,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:09,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:09,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:09,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 199 [2023-11-19 08:00:09,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-11-19 08:00:09,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:09,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 199 [2023-11-19 08:00:09,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:09,681 INFO L124 PetriNetUnfolderBase]: 97/212 cut-off events. [2023-11-19 08:00:09,681 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:00:09,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 212 events. 97/212 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 792 event pairs, 47 based on Foata normal form. 24/197 useless extension candidates. Maximal degree in co-relation 418. Up to 145 conditions per place. [2023-11-19 08:00:09,688 INFO L140 encePairwiseOnDemand]: 190/199 looper letters, 25 selfloop transitions, 3 changer transitions 2/33 dead transitions. [2023-11-19 08:00:09,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 135 flow [2023-11-19 08:00:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-11-19 08:00:09,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041876046901173 [2023-11-19 08:00:09,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-11-19 08:00:09,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-11-19 08:00:09,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:09,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-11-19 08:00:09,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2023-11-19 08:00:09,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 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) [2023-11-19 08:00:09,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 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) [2023-11-19 08:00:09,747 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 54 flow. Second operand 3 states and 301 transitions. [2023-11-19 08:00:09,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 135 flow [2023-11-19 08:00:09,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:09,754 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 69 flow [2023-11-19 08:00:09,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-11-19 08:00:09,765 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-11-19 08:00:09,766 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 69 flow [2023-11-19 08:00:09,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-11-19 08:00:09,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:09,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:09,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:09,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:00:09,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash -681886566, now seen corresponding path program 1 times [2023-11-19 08:00:09,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:09,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118382369] [2023-11-19 08:00:09,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:09,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:10,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:10,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:10,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118382369] [2023-11-19 08:00:10,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118382369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:10,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:10,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:10,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003739279] [2023-11-19 08:00:10,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:10,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:10,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:10,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 199 [2023-11-19 08:00:10,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2023-11-19 08:00:10,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:10,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 199 [2023-11-19 08:00:10,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:10,268 INFO L124 PetriNetUnfolderBase]: 76/173 cut-off events. [2023-11-19 08:00:10,268 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-19 08:00:10,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 173 events. 76/173 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 632 event pairs, 35 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 393. Up to 105 conditions per place. [2023-11-19 08:00:10,277 INFO L140 encePairwiseOnDemand]: 194/199 looper letters, 23 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-11-19 08:00:10,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 131 flow [2023-11-19 08:00:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:00:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:00:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2023-11-19 08:00:10,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47738693467336685 [2023-11-19 08:00:10,284 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2023-11-19 08:00:10,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2023-11-19 08:00:10,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:10,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2023-11-19 08:00:10,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2023-11-19 08:00:10,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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) [2023-11-19 08:00:10,298 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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) [2023-11-19 08:00:10,299 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 69 flow. Second operand 4 states and 380 transitions. [2023-11-19 08:00:10,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 131 flow [2023-11-19 08:00:10,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:10,302 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 64 flow [2023-11-19 08:00:10,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-11-19 08:00:10,305 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-11-19 08:00:10,305 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 64 flow [2023-11-19 08:00:10,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2023-11-19 08:00:10,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:10,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:10,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:10,307 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:00:10,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash -681886565, now seen corresponding path program 1 times [2023-11-19 08:00:10,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:10,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469202092] [2023-11-19 08:00:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:10,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:10,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:10,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469202092] [2023-11-19 08:00:10,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469202092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:10,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700956770] [2023-11-19 08:00:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:10,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:10,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:10,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:10,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:10,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 199 [2023-11-19 08:00:10,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2023-11-19 08:00:10,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:10,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 199 [2023-11-19 08:00:10,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:10,566 INFO L124 PetriNetUnfolderBase]: 46/103 cut-off events. [2023-11-19 08:00:10,566 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-11-19 08:00:10,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 103 events. 46/103 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 327 event pairs, 27 based on Foata normal form. 11/111 useless extension candidates. Maximal degree in co-relation 232. Up to 58 conditions per place. [2023-11-19 08:00:10,569 INFO L140 encePairwiseOnDemand]: 193/199 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-11-19 08:00:10,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 104 flow [2023-11-19 08:00:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:00:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:00:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2023-11-19 08:00:10,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47110552763819097 [2023-11-19 08:00:10,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2023-11-19 08:00:10,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2023-11-19 08:00:10,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:10,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2023-11-19 08:00:10,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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) [2023-11-19 08:00:10,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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) [2023-11-19 08:00:10,580 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 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) [2023-11-19 08:00:10,580 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 64 flow. Second operand 4 states and 375 transitions. [2023-11-19 08:00:10,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 104 flow [2023-11-19 08:00:10,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 97 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:10,583 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-11-19 08:00:10,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-11-19 08:00:10,586 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2023-11-19 08:00:10,587 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-11-19 08:00:10,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2023-11-19 08:00:10,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-19 08:00:10,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-19 08:00:10,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-19 08:00:10,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-19 08:00:10,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-19 08:00:10,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-19 08:00:10,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-19 08:00:10,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-19 08:00:10,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-19 08:00:10,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-19 08:00:10,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:10,603 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 08:00:10,611 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:00:10,611 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:00:10,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:00:10 BasicIcfg [2023-11-19 08:00:10,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:00:10,619 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:00:10,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:00:10,619 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:00:10,620 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:04" (3/4) ... [2023-11-19 08:00:10,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:00:10,626 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:00:10,626 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:00:10,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 08:00:10,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 08:00:10,636 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:00:10,636 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:00:10,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:00:10,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:00:10,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:00:10,773 INFO L158 Benchmark]: Toolchain (without parser) took 8604.48ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 111.2MB in the beginning and 69.6MB in the end (delta: 41.6MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,773 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 153.1MB. Free memory was 124.6MB in the beginning and 124.3MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:10,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.96ms. Allocated memory is still 153.1MB. Free memory was 111.2MB in the beginning and 88.6MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.21ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 86.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,775 INFO L158 Benchmark]: Boogie Preprocessor took 74.48ms. Allocated memory is still 153.1MB. Free memory was 86.0MB in the beginning and 84.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,775 INFO L158 Benchmark]: RCFGBuilder took 951.04ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 83.9MB in the beginning and 149.3MB in the end (delta: -65.4MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,776 INFO L158 Benchmark]: TraceAbstraction took 6455.85ms. Allocated memory is still 188.7MB. Free memory was 149.3MB in the beginning and 74.8MB in the end (delta: 74.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,776 INFO L158 Benchmark]: Witness Printer took 153.19ms. Allocated memory is still 188.7MB. Free memory was 74.8MB in the beginning and 69.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:00:10,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 153.1MB. Free memory was 124.6MB in the beginning and 124.3MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.96ms. Allocated memory is still 153.1MB. Free memory was 111.2MB in the beginning and 88.6MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.21ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 86.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.48ms. Allocated memory is still 153.1MB. Free memory was 86.0MB in the beginning and 84.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 951.04ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 83.9MB in the beginning and 149.3MB in the end (delta: -65.4MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6455.85ms. Allocated memory is still 188.7MB. Free memory was 149.3MB in the beginning and 74.8MB in the end (delta: 74.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Witness Printer took 153.19ms. Allocated memory is still 188.7MB. Free memory was 74.8MB in the beginning and 69.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 108 PlacesBefore, 30 PlacesAfterwards, 104 TransitionsBefore, 24 TransitionsAfterwards, 1936 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, 5702 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2710, independent: 2511, independent conditional: 0, independent unconditional: 2511, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1103, independent: 1066, independent conditional: 0, independent unconditional: 1066, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2710, independent: 1445, independent conditional: 0, independent unconditional: 1445, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 1103, unknown conditional: 0, unknown unconditional: 1103] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 130 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 2 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:00:10,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_574b1186-fcb1-4ea6-bcb0-729bd6422a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE