./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9 --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 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 21:00:28,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:00:28,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:00:28,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:00:28,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:00:28,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:00:28,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:00:28,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:00:28,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:00:28,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:00:28,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:00:28,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:00:28,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:00:28,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:00:28,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:00:28,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:00:28,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:00:28,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:00:28,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:00:28,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:00:28,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:00:28,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:00:28,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:00:28,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:00:28,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:00:28,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:00:28,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:00:28,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:00:28,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:00:28,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:00:28,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:00:28,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:00:28,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:00:28,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:00:28,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:00:28,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:00:28,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:00:28,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:00:28,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:00:28,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:00:28,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:00:28,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 21:00:28,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:00:28,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:00:28,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:00:28,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:00:28,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:00:28,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:00:28,295 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:00:28,295 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:00:28,295 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:00:28,295 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:00:28,297 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:00:28,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:00:28,297 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:00:28,298 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:00:28,298 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:00:28,298 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:00:28,298 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:00:28,299 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:00:28,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:00:28,300 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:00:28,300 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:00:28,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:00:28,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:00:28,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:00:28,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:00:28,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:00:28,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:00:28,302 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 21:00:28,302 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:00:28,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:00:28,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:00:28,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:00:28,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:00:28,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:00:28,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:00:28,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:00:28,305 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:00:28,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:00:28,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:00:28,306 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:00:28,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:00:28,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:00:28,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:00:28,307 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_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b [2022-11-20 21:00:28,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:00:28,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:00:28,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:00:28,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:00:28,685 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:00:28,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2022-11-20 21:00:31,839 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:00:32,148 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:00:32,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2022-11-20 21:00:32,176 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/data/0f191f4e5/cafaad287f654bb68bdc77c1379fc1af/FLAG7699e4dcb [2022-11-20 21:00:32,196 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/data/0f191f4e5/cafaad287f654bb68bdc77c1379fc1af [2022-11-20 21:00:32,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:00:32,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:00:32,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:00:32,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:00:32,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:00:32,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fb3c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32, skipping insertion in model container [2022-11-20 21:00:32,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:00:32,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:00:32,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i[994,1007] [2022-11-20 21:00:32,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:00:32,806 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:00:32,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i[994,1007] [2022-11-20 21:00:32,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:00:32,972 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:00:32,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32 WrapperNode [2022-11-20 21:00:32,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:00:32,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:00:32,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:00:32,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:00:32,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,083 INFO L138 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 196 [2022-11-20 21:00:33,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:00:33,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:00:33,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:00:33,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:00:33,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:00:33,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:00:33,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:00:33,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:00:33,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:33,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:00:33,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:00:33,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:00:33,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:00:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:00:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:00:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 21:00:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:00:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:00:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:00:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 21:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 21:00:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 21:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 21:00:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 21:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 21:00:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 21:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 21:00:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:00:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 21:00:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:00:33,280 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:00:33,575 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:00:33,577 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:00:34,381 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:00:34,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:00:34,901 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:00:34,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:34 BoogieIcfgContainer [2022-11-20 21:00:34,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:00:34,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:00:34,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:00:34,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:00:34,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:00:32" (1/3) ... [2022-11-20 21:00:34,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77eedb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:34, skipping insertion in model container [2022-11-20 21:00:34,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (2/3) ... [2022-11-20 21:00:34,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77eedb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:34, skipping insertion in model container [2022-11-20 21:00:34,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:34" (3/3) ... [2022-11-20 21:00:34,918 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.opt.i [2022-11-20 21:00:34,928 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 21:00:34,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:00:34,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 21:00:34,941 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:00:35,046 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 21:00:35,093 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:00:35,111 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 159 transitions, 338 flow [2022-11-20 21:00:35,116 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 159 transitions, 338 flow [2022-11-20 21:00:35,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 159 transitions, 338 flow [2022-11-20 21:00:35,231 INFO L130 PetriNetUnfolder]: 2/155 cut-off events. [2022-11-20 21:00:35,231 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 21:00:35,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 155 events. 2/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-11-20 21:00:35,244 INFO L119 LiptonReduction]: Number of co-enabled transitions 3746 [2022-11-20 21:00:51,215 INFO L134 LiptonReduction]: Checked pairs total: 12151 [2022-11-20 21:00:51,215 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-11-20 21:00:51,224 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 37 transitions, 94 flow [2022-11-20 21:00:51,552 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6634 states, 6554 states have (on average 4.3216356423558135) internal successors, (28324), 6633 states have internal predecessors, (28324), 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) [2022-11-20 21:00:51,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:00:51,587 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;@4e6ade5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:00:51,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-20 21:00:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 6634 states, 6554 states have (on average 4.3216356423558135) internal successors, (28324), 6633 states have internal predecessors, (28324), 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) [2022-11-20 21:00:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:00:51,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:51,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:00:51,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:00:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash 31443192, now seen corresponding path program 1 times [2022-11-20 21:00:51,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:51,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453961404] [2022-11-20 21:00:51,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:51,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:00:52,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:00:52,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453961404] [2022-11-20 21:00:52,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453961404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:52,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:52,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 21:00:52,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367746206] [2022-11-20 21:00:52,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:52,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:00:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:00:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:00:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:00:52,248 INFO L87 Difference]: Start difference. First operand has 6634 states, 6554 states have (on average 4.3216356423558135) internal successors, (28324), 6633 states have internal predecessors, (28324), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-20 21:00:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:52,529 INFO L93 Difference]: Finished difference Result 3478 states and 11979 transitions. [2022-11-20 21:00:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:00:52,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-20 21:00:52,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:52,597 INFO L225 Difference]: With dead ends: 3478 [2022-11-20 21:00:52,597 INFO L226 Difference]: Without dead ends: 3478 [2022-11-20 21:00:52,598 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 [2022-11-20 21:00:52,603 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:52,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:00:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2022-11-20 21:00:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3478. [2022-11-20 21:00:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3414 states have (on average 3.508787346221441) internal successors, (11979), 3477 states have internal predecessors, (11979), 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) [2022-11-20 21:00:52,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 11979 transitions. [2022-11-20 21:00:52,928 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 11979 transitions. Word has length 4 [2022-11-20 21:00:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:52,929 INFO L495 AbstractCegarLoop]: Abstraction has 3478 states and 11979 transitions. [2022-11-20 21:00:52,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-20 21:00:52,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 11979 transitions. [2022-11-20 21:00:52,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 21:00:52,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:52,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:00:52,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:00:52,937 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:00:52,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:52,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1109796182, now seen corresponding path program 1 times [2022-11-20 21:00:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:52,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27183696] [2022-11-20 21:00:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:52,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:00:53,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:00:53,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27183696] [2022-11-20 21:00:53,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27183696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:53,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:53,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:00:53,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603308727] [2022-11-20 21:00:53,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:53,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:00:53,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:00:53,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:00:53,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:00:53,167 INFO L87 Difference]: Start difference. First operand 3478 states and 11979 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-20 21:00:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:53,375 INFO L93 Difference]: Finished difference Result 2082 states and 7065 transitions. [2022-11-20 21:00:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:00:53,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-20 21:00:53,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:53,391 INFO L225 Difference]: With dead ends: 2082 [2022-11-20 21:00:53,391 INFO L226 Difference]: Without dead ends: 2082 [2022-11-20 21:00:53,392 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 [2022-11-20 21:00:53,393 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:53,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:00:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-11-20 21:00:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2022-11-20 21:00:53,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2068 states have (on average 3.4163442940038684) internal successors, (7065), 2081 states have internal predecessors, (7065), 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) [2022-11-20 21:00:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 7065 transitions. [2022-11-20 21:00:53,514 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 7065 transitions. Word has length 9 [2022-11-20 21:00:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:53,514 INFO L495 AbstractCegarLoop]: Abstraction has 2082 states and 7065 transitions. [2022-11-20 21:00:53,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-20 21:00:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 7065 transitions. [2022-11-20 21:00:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 21:00:53,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:53,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:00:53,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:00:53,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:00:53,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 43942047, now seen corresponding path program 1 times [2022-11-20 21:00:53,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:53,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267139504] [2022-11-20 21:00:53,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:53,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:00:53,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:00:53,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267139504] [2022-11-20 21:00:53,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267139504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:53,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:53,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:00:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084419484] [2022-11-20 21:00:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:53,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:00:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:00:53,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:00:53,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:00:53,767 INFO L87 Difference]: Start difference. First operand 2082 states and 7065 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-20 21:00:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:53,962 INFO L93 Difference]: Finished difference Result 951 states and 2764 transitions. [2022-11-20 21:00:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:00:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-20 21:00:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:53,969 INFO L225 Difference]: With dead ends: 951 [2022-11-20 21:00:53,970 INFO L226 Difference]: Without dead ends: 951 [2022-11-20 21:00:53,971 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 [2022-11-20 21:00:53,974 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 29 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:53,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 7 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:00:53,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-11-20 21:00:54,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2022-11-20 21:00:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 941 states have (on average 2.9373007438894794) internal successors, (2764), 950 states have internal predecessors, (2764), 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) [2022-11-20 21:00:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 2764 transitions. [2022-11-20 21:00:54,019 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 2764 transitions. Word has length 10 [2022-11-20 21:00:54,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:54,020 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 2764 transitions. [2022-11-20 21:00:54,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-20 21:00:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 2764 transitions. [2022-11-20 21:00:54,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 21:00:54,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:54,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:00:54,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:00:54,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:00:54,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -282997085, now seen corresponding path program 1 times [2022-11-20 21:00:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:54,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724808326] [2022-11-20 21:00:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:00:54,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:00:54,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724808326] [2022-11-20 21:00:54,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724808326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:54,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:54,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:00:54,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840334674] [2022-11-20 21:00:54,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:54,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:00:54,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:00:54,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:00:54,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:00:54,294 INFO L87 Difference]: Start difference. First operand 951 states and 2764 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-20 21:00:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:54,492 INFO L93 Difference]: Finished difference Result 576 states and 1690 transitions. [2022-11-20 21:00:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:00:54,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-20 21:00:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:54,497 INFO L225 Difference]: With dead ends: 576 [2022-11-20 21:00:54,497 INFO L226 Difference]: Without dead ends: 576 [2022-11-20 21:00:54,497 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 [2022-11-20 21:00:54,498 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 58 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:54,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 8 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:00:54,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-11-20 21:00:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2022-11-20 21:00:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 572 states have (on average 2.9545454545454546) internal successors, (1690), 575 states have internal predecessors, (1690), 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) [2022-11-20 21:00:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1690 transitions. [2022-11-20 21:00:54,518 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1690 transitions. Word has length 16 [2022-11-20 21:00:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:54,519 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 1690 transitions. [2022-11-20 21:00:54,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-20 21:00:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1690 transitions. [2022-11-20 21:00:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 21:00:54,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:54,521 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] [2022-11-20 21:00:54,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:00:54,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:00:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:54,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1764560775, now seen corresponding path program 1 times [2022-11-20 21:00:54,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:54,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385098969] [2022-11-20 21:00:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:54,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:00:54,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:00:54,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385098969] [2022-11-20 21:00:54,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385098969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:54,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:54,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:00:54,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763129543] [2022-11-20 21:00:54,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:54,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:00:54,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:00:54,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:00:54,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:00:54,738 INFO L87 Difference]: Start difference. First operand 576 states and 1690 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-11-20 21:00:54,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:54,933 INFO L93 Difference]: Finished difference Result 521 states and 1596 transitions. [2022-11-20 21:00:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 21:00:54,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-11-20 21:00:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:54,934 INFO L225 Difference]: With dead ends: 521 [2022-11-20 21:00:54,934 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:00:54,934 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 [2022-11-20 21:00:54,935 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 107 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:54,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:00:54,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:00:54,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:00:54,936 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) [2022-11-20 21:00:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:00:54,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-20 21:00:54,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:54,937 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:00:54,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-11-20 21:00:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:00:54,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:00:54,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-20 21:00:54,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-20 21:00:54,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-20 21:00:54,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-20 21:00:54,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-20 21:00:54,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-20 21:00:54,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-20 21:00:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-20 21:00:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-20 21:00:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-20 21:00:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-20 21:00:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-20 21:00:54,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-20 21:00:54,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-20 21:00:54,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-20 21:00:54,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-20 21:00:54,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-20 21:00:54,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-20 21:00:54,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-20 21:00:54,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-20 21:00:54,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 21:00:54,946 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 21:00:54,951 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:00:54,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:00:54,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:00:54 BasicIcfg [2022-11-20 21:00:54,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:00:54,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:00:54,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:00:54,956 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:00:54,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:34" (3/4) ... [2022-11-20 21:00:54,959 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:00:54,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 21:00:54,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 21:00:54,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 21:00:54,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-20 21:00:54,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-11-20 21:00:54,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 21:00:54,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 21:00:54,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:00:55,035 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:00:55,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:00:55,036 INFO L158 Benchmark]: Toolchain (without parser) took 22834.81ms. Allocated memory was 163.6MB in the beginning and 302.0MB in the end (delta: 138.4MB). Free memory was 116.4MB in the beginning and 197.1MB in the end (delta: -80.6MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,036 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 163.6MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:55,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 768.62ms. Allocated memory is still 163.6MB. Free memory was 116.4MB in the beginning and 90.7MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.98ms. Allocated memory is still 163.6MB. Free memory was 90.7MB in the beginning and 88.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,037 INFO L158 Benchmark]: Boogie Preprocessor took 81.74ms. Allocated memory is still 163.6MB. Free memory was 88.1MB in the beginning and 85.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,038 INFO L158 Benchmark]: RCFGBuilder took 1733.24ms. Allocated memory is still 163.6MB. Free memory was 85.5MB in the beginning and 109.9MB in the end (delta: -24.3MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,038 INFO L158 Benchmark]: TraceAbstraction took 20047.34ms. Allocated memory was 163.6MB in the beginning and 302.0MB in the end (delta: 138.4MB). Free memory was 108.8MB in the beginning and 200.2MB in the end (delta: -91.4MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,039 INFO L158 Benchmark]: Witness Printer took 80.37ms. Allocated memory is still 302.0MB. Free memory was 200.2MB in the beginning and 197.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:00:55,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 163.6MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 768.62ms. Allocated memory is still 163.6MB. Free memory was 116.4MB in the beginning and 90.7MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.98ms. Allocated memory is still 163.6MB. Free memory was 90.7MB in the beginning and 88.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.74ms. Allocated memory is still 163.6MB. Free memory was 88.1MB in the beginning and 85.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1733.24ms. Allocated memory is still 163.6MB. Free memory was 85.5MB in the beginning and 109.9MB in the end (delta: -24.3MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20047.34ms. Allocated memory was 163.6MB in the beginning and 302.0MB in the end (delta: 138.4MB). Free memory was 108.8MB in the beginning and 200.2MB in the end (delta: -91.4MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * Witness Printer took 80.37ms. Allocated memory is still 302.0MB. Free memory was 200.2MB in the beginning and 197.1MB 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: 16.1s, 170 PlacesBefore, 49 PlacesAfterwards, 159 TransitionsBefore, 37 TransitionsAfterwards, 3746 CoEnabledTransitionPairs, 7 FixpointIterations, 65 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 12151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4281, independent: 3957, independent conditional: 0, independent unconditional: 3957, dependent: 324, dependent conditional: 0, dependent unconditional: 324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2467, independent: 2393, independent conditional: 0, independent unconditional: 2393, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2467, independent: 2316, independent conditional: 0, independent unconditional: 2316, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 151, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1256, independent: 164, independent conditional: 0, independent unconditional: 164, dependent: 1091, dependent conditional: 0, dependent unconditional: 1091, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4281, independent: 1564, independent conditional: 0, independent unconditional: 1564, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 2467, unknown conditional: 0, unknown unconditional: 2467] , Statistics on independence cache: Total cache size (in pairs): 235, Positive cache size: 205, Positive conditional cache size: 0, Positive unconditional cache size: 205, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, 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: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 869]: 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, 199 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 19.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 16.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 18 mSDtfsCounter, 363 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=6634occurred 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: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 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! [2022-11-20 21:00:55,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b756287-a719-43e5-a10b-54ed07fe5371/bin/utaipan-6cKwYrpEi9/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