./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix020.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix020.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:05:59,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:05:59,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:05:59,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:05:59,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:05:59,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:05:59,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:05:59,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:05:59,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:05:59,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:05:59,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:05:59,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:05:59,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:05:59,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:05:59,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:05:59,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:05:59,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:05:59,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:05:59,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:05:59,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:05:59,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:05:59,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:05:59,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:05:59,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:05:59,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:05:59,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:05:59,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:05:59,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:05:59,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:05:59,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:05:59,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:05:59,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:05:59,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:05:59,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:05:59,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:05:59,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:05:59,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:05:59,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:05:59,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:05:59,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:05:59,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:05:59,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:05:59,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:05:59,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:05:59,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:05:59,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:05:59,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:05:59,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:05:59,214 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:05:59,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:05:59,215 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:05:59,215 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:05:59,216 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:05:59,216 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:05:59,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:05:59,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:05:59,217 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:05:59,217 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:05:59,217 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:05:59,218 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:05:59,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:05:59,219 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:05:59,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:05:59,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:05:59,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:05:59,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:05:59,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:05:59,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:05:59,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:05:59,220 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:05:59,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:05:59,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:05:59,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:05:59,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:05:59,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:05:59,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:05:59,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:05:59,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:05:59,222 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:05:59,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:05:59,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:05:59,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:05:59,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:05:59,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:05:59,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:05:59,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e [2022-11-19 07:05:59,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:05:59,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:05:59,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:05:59,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:05:59,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:05:59,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2022-11-19 07:05:59,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/data/f9dcf5493/48156efdd1354b10b059552b277e18e5/FLAG2bd879ffd [2022-11-19 07:06:00,180 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:06:00,187 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2022-11-19 07:06:00,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/data/f9dcf5493/48156efdd1354b10b059552b277e18e5/FLAG2bd879ffd [2022-11-19 07:06:00,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/data/f9dcf5493/48156efdd1354b10b059552b277e18e5 [2022-11-19 07:06:00,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:06:00,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:06:00,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:00,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:06:00,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:06:00,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:00" (1/1) ... [2022-11-19 07:06:00,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786b68a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:00, skipping insertion in model container [2022-11-19 07:06:00,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:00" (1/1) ... [2022-11-19 07:06:00,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:06:00,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:06:00,793 WARN L234 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_e4433f25-e022-4799-af62-bf6fe79acd09/sv-benchmarks/c/pthread-wmm/mix020.oepc.i[945,958] [2022-11-19 07:06:01,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:06:01,049 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:06:01,069 WARN L234 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_e4433f25-e022-4799-af62-bf6fe79acd09/sv-benchmarks/c/pthread-wmm/mix020.oepc.i[945,958] [2022-11-19 07:06:01,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:06:01,190 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:06:01,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01 WrapperNode [2022-11-19 07:06:01,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:01,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:06:01,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:06:01,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:06:01,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,243 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-19 07:06:01,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:06:01,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:06:01,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:06:01,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:06:01,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,270 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:06:01,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:06:01,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:06:01,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:06:01,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (1/1) ... [2022-11-19 07:06:01,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:06:01,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:01,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:06:01,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:06:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:06:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 07:06:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 07:06:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 07:06:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 07:06:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 07:06:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 07:06:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-19 07:06:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-19 07:06:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:06:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:06:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:06:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:06:01,367 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:06:01,511 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:06:01,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:06:02,007 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:06:02,196 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:06:02,196 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:06:02,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:02 BoogieIcfgContainer [2022-11-19 07:06:02,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:06:02,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:06:02,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:06:02,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:06:02,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:06:00" (1/3) ... [2022-11-19 07:06:02,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e894cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:02, skipping insertion in model container [2022-11-19 07:06:02,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:01" (2/3) ... [2022-11-19 07:06:02,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e894cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:02, skipping insertion in model container [2022-11-19 07:06:02,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:02" (3/3) ... [2022-11-19 07:06:02,212 INFO L112 eAbstractionObserver]: Analyzing ICFG mix020.oepc.i [2022-11-19 07:06:02,220 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:06:02,231 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:06:02,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 07:06:02,232 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:06:02,315 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:06:02,349 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:06:02,361 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 144 transitions, 308 flow [2022-11-19 07:06:02,363 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 144 transitions, 308 flow [2022-11-19 07:06:02,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-11-19 07:06:02,458 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-19 07:06:02,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:06:02,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-19 07:06:02,470 INFO L119 LiptonReduction]: Number of co-enabled transitions 4298 [2022-11-19 07:06:09,411 INFO L134 LiptonReduction]: Checked pairs total: 16703 [2022-11-19 07:06:09,412 INFO L136 LiptonReduction]: Total number of compositions: 118 [2022-11-19 07:06:09,429 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 41 transitions, 102 flow [2022-11-19 07:06:10,089 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) [2022-11-19 07:06:10,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:06:10,126 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62e36526, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:06:10,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-19 07:06:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) [2022-11-19 07:06:10,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:06:10,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:10,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:06:10,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:06:10,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:10,173 INFO L85 PathProgramCache]: Analyzing trace with hash 583221561, now seen corresponding path program 1 times [2022-11-19 07:06:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:10,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942380811] [2022-11-19 07:06:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:10,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:10,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942380811] [2022-11-19 07:06:10,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942380811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:10,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:10,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:06:10,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629788941] [2022-11-19 07:06:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:10,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:06:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:06:10,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:10,571 INFO L87 Difference]: Start difference. First operand has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-19 07:06:10,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:10,947 INFO L93 Difference]: Finished difference Result 6656 states and 24793 transitions. [2022-11-19 07:06:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:06:10,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-11-19 07:06:10,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:11,019 INFO L225 Difference]: With dead ends: 6656 [2022-11-19 07:06:11,020 INFO L226 Difference]: Without dead ends: 6656 [2022-11-19 07:06:11,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:11,024 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:11,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:06:11,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6656 states. [2022-11-19 07:06:11,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6656 to 6656. [2022-11-19 07:06:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 6592 states have (on average 3.7610740291262137) internal successors, (24793), 6655 states have internal predecessors, (24793), 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) [2022-11-19 07:06:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 24793 transitions. [2022-11-19 07:06:11,539 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 24793 transitions. Word has length 5 [2022-11-19 07:06:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:11,540 INFO L495 AbstractCegarLoop]: Abstraction has 6656 states and 24793 transitions. [2022-11-19 07:06:11,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-19 07:06:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 24793 transitions. [2022-11-19 07:06:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:06:11,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:11,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:06:11,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:06:11,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:06:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash -966747103, now seen corresponding path program 1 times [2022-11-19 07:06:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:11,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460608707] [2022-11-19 07:06:11,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:11,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:11,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:11,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460608707] [2022-11-19 07:06:11,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460608707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:11,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:11,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:06:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989505377] [2022-11-19 07:06:11,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:11,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:06:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:06:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:06:11,756 INFO L87 Difference]: Start difference. First operand 6656 states and 24793 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-19 07:06:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:12,143 INFO L93 Difference]: Finished difference Result 4700 states and 17833 transitions. [2022-11-19 07:06:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:06:12,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-11-19 07:06:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:12,239 INFO L225 Difference]: With dead ends: 4700 [2022-11-19 07:06:12,240 INFO L226 Difference]: Without dead ends: 4700 [2022-11-19 07:06:12,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:06:12,241 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:12,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 16 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:06:12,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2022-11-19 07:06:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4700. [2022-11-19 07:06:12,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4686 states have (on average 3.805591122492531) internal successors, (17833), 4699 states have internal predecessors, (17833), 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) [2022-11-19 07:06:12,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 17833 transitions. [2022-11-19 07:06:12,592 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 17833 transitions. Word has length 11 [2022-11-19 07:06:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:12,593 INFO L495 AbstractCegarLoop]: Abstraction has 4700 states and 17833 transitions. [2022-11-19 07:06:12,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-19 07:06:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 17833 transitions. [2022-11-19 07:06:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:06:12,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:12,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:06:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:06:12,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:06:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash 95609146, now seen corresponding path program 1 times [2022-11-19 07:06:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076972069] [2022-11-19 07:06:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:12,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:12,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076972069] [2022-11-19 07:06:12,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076972069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:12,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:12,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:06:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072344594] [2022-11-19 07:06:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:12,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:06:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:12,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:06:12,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:06:12,737 INFO L87 Difference]: Start difference. First operand 4700 states and 17833 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-19 07:06:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:12,930 INFO L93 Difference]: Finished difference Result 3558 states and 13598 transitions. [2022-11-19 07:06:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:06:12,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2022-11-19 07:06:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:13,008 INFO L225 Difference]: With dead ends: 3558 [2022-11-19 07:06:13,008 INFO L226 Difference]: Without dead ends: 3558 [2022-11-19 07:06:13,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:06:13,010 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 40 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:13,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 16 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:06:13,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2022-11-19 07:06:13,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3558. [2022-11-19 07:06:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 3548 states have (on average 3.8325817361894026) internal successors, (13598), 3557 states have internal predecessors, (13598), 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) [2022-11-19 07:06:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 13598 transitions. [2022-11-19 07:06:13,147 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 13598 transitions. Word has length 12 [2022-11-19 07:06:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:13,148 INFO L495 AbstractCegarLoop]: Abstraction has 3558 states and 13598 transitions. [2022-11-19 07:06:13,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-19 07:06:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 13598 transitions. [2022-11-19 07:06:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:06:13,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:13,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:06:13,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:06:13,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:06:13,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:13,156 INFO L85 PathProgramCache]: Analyzing trace with hash 827324467, now seen corresponding path program 1 times [2022-11-19 07:06:13,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:13,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772695836] [2022-11-19 07:06:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:13,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:13,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:13,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772695836] [2022-11-19 07:06:13,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772695836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:13,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:13,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:06:13,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111683280] [2022-11-19 07:06:13,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:13,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:06:13,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:13,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:06:13,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:06:13,452 INFO L87 Difference]: Start difference. First operand 3558 states and 13598 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-19 07:06:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:13,704 INFO L93 Difference]: Finished difference Result 3324 states and 12959 transitions. [2022-11-19 07:06:13,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:06:13,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) Word has length 18 [2022-11-19 07:06:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:13,732 INFO L225 Difference]: With dead ends: 3324 [2022-11-19 07:06:13,732 INFO L226 Difference]: Without dead ends: 3324 [2022-11-19 07:06:13,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:06:13,736 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 76 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:13,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 20 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:06:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2022-11-19 07:06:13,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2022-11-19 07:06:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3320 states have (on average 3.903313253012048) internal successors, (12959), 3323 states have internal predecessors, (12959), 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) [2022-11-19 07:06:13,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 12959 transitions. [2022-11-19 07:06:13,902 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 12959 transitions. Word has length 18 [2022-11-19 07:06:13,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:13,903 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 12959 transitions. [2022-11-19 07:06:13,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-19 07:06:13,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 12959 transitions. [2022-11-19 07:06:13,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 07:06:13,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:13,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:06:13,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:06:13,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:06:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:13,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1157797922, now seen corresponding path program 1 times [2022-11-19 07:06:13,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:13,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81495016] [2022-11-19 07:06:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:13,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:14,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:14,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81495016] [2022-11-19 07:06:14,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81495016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:14,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:14,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:06:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96923857] [2022-11-19 07:06:14,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:14,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:06:14,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:14,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:06:14,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:06:14,190 INFO L87 Difference]: Start difference. First operand 3324 states and 12959 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-11-19 07:06:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:14,397 INFO L93 Difference]: Finished difference Result 3308 states and 12931 transitions. [2022-11-19 07:06:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:06:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) Word has length 25 [2022-11-19 07:06:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:14,398 INFO L225 Difference]: With dead ends: 3308 [2022-11-19 07:06:14,399 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:06:14,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:06:14,399 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 117 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:14,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 16 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:06:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:06:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:06:14,401 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) [2022-11-19 07:06:14,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:06:14,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-19 07:06:14,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:14,401 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:06:14,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-11-19 07:06:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:06:14,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:06:14,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-19 07:06:14,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-19 07:06:14,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-19 07:06:14,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-19 07:06:14,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-19 07:06:14,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-19 07:06:14,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-19 07:06:14,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-19 07:06:14,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-19 07:06:14,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-19 07:06:14,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-19 07:06:14,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-19 07:06:14,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-19 07:06:14,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-19 07:06:14,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-19 07:06:14,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-19 07:06:14,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-19 07:06:14,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-19 07:06:14,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-19 07:06:14,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-19 07:06:14,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:06:14,410 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:06:14,415 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:06:14,416 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:06:14,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:06:14 BasicIcfg [2022-11-19 07:06:14,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:06:14,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:06:14,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:06:14,419 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:06:14,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:02" (3/4) ... [2022-11-19 07:06:14,422 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:06:14,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 07:06:14,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 07:06:14,428 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 07:06:14,428 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-19 07:06:14,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-19 07:06:14,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 07:06:14,433 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:06:14,433 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:06:14,467 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:06:14,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:06:14,468 INFO L158 Benchmark]: Toolchain (without parser) took 13991.96ms. Allocated memory was 92.3MB in the beginning and 539.0MB in the end (delta: 446.7MB). Free memory was 56.1MB in the beginning and 344.4MB in the end (delta: -288.2MB). Peak memory consumption was 158.9MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,468 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:06:14,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.17ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.0MB in the beginning and 74.0MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.64ms. Allocated memory is still 111.1MB. Free memory was 74.0MB in the beginning and 71.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,469 INFO L158 Benchmark]: Boogie Preprocessor took 30.75ms. Allocated memory is still 111.1MB. Free memory was 71.4MB in the beginning and 69.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,469 INFO L158 Benchmark]: RCFGBuilder took 924.87ms. Allocated memory is still 111.1MB. Free memory was 69.3MB in the beginning and 77.3MB in the end (delta: -8.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,469 INFO L158 Benchmark]: TraceAbstraction took 12215.70ms. Allocated memory was 111.1MB in the beginning and 539.0MB in the end (delta: 427.8MB). Free memory was 77.2MB in the beginning and 347.5MB in the end (delta: -270.4MB). Peak memory consumption was 157.5MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,470 INFO L158 Benchmark]: Witness Printer took 48.32ms. Allocated memory is still 539.0MB. Free memory was 347.5MB in the beginning and 344.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:06:14,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 714.17ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.0MB in the beginning and 74.0MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.64ms. Allocated memory is still 111.1MB. Free memory was 74.0MB in the beginning and 71.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.75ms. Allocated memory is still 111.1MB. Free memory was 71.4MB in the beginning and 69.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 924.87ms. Allocated memory is still 111.1MB. Free memory was 69.3MB in the beginning and 77.3MB in the end (delta: -8.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12215.70ms. Allocated memory was 111.1MB in the beginning and 539.0MB in the end (delta: 427.8MB). Free memory was 77.2MB in the beginning and 347.5MB in the end (delta: -270.4MB). Peak memory consumption was 157.5MB. Max. memory is 16.1GB. * Witness Printer took 48.32ms. Allocated memory is still 539.0MB. Free memory was 347.5MB in the beginning and 344.4MB in the end (delta: 3.1MB). 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: 7.0s, 155 PlacesBefore, 53 PlacesAfterwards, 144 TransitionsBefore, 41 TransitionsAfterwards, 4298 CoEnabledTransitionPairs, 8 FixpointIterations, 46 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 TotalNumberOfCompositions, 16703 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6212, independent: 5817, independent conditional: 0, independent unconditional: 5817, dependent: 395, dependent conditional: 0, dependent unconditional: 395, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3048, independent: 2968, independent conditional: 0, independent unconditional: 2968, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3048, independent: 2894, independent conditional: 0, independent unconditional: 2894, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 154, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 731, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 580, dependent conditional: 0, dependent unconditional: 580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6212, independent: 2849, independent conditional: 0, independent unconditional: 2849, dependent: 315, dependent conditional: 0, dependent unconditional: 315, unknown: 3048, unknown conditional: 0, unknown unconditional: 3048] , Statistics on independence cache: Total cache size (in pairs): 338, Positive cache size: 305, Positive conditional cache size: 0, Positive unconditional cache size: 305, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: 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 9 procedures, 188 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 408 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 36 mSDtfsCounter, 408 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11772occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 07:06:14,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4433f25-e022-4799-af62-bf6fe79acd09/bin/utaipan-I9t0OCRTmS/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