./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- 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-b5237d8 [2022-11-21 16:58:20,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:58:20,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:58:20,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:58:20,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:58:20,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:58:20,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:58:20,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:58:20,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:58:20,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:58:20,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:58:20,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:58:20,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:58:20,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:58:20,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:58:20,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:58:20,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:58:20,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:58:20,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:58:20,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:58:20,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:58:20,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:58:20,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:58:20,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:58:20,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:58:20,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:58:20,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:58:20,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:58:20,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:58:20,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:58:20,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:58:20,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:58:20,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:58:20,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:58:20,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:58:20,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:58:20,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:58:20,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:58:20,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:58:20,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:58:20,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:58:20,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:58:20,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:58:20,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:58:20,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:58:20,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:58:20,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:58:20,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:58:20,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:58:20,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:58:20,315 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:58:20,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:58:20,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:58:20,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:58:20,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:58:20,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:58:20,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:58:20,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:58:20,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:58:20,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:58:20,318 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:58:20,318 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:58:20,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:58:20,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:58:20,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:58:20,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:58:20,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:58:20,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:58:20,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:58:20,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:58:20,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:58:20,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:58:20,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:58:20,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:58:20,322 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:58:20,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:58:20,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:58:20,323 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_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2022-11-21 16:58:20,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:58:20,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:58:20,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:58:20,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:58:20,737 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:58:20,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-21 16:58:24,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:58:24,340 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:58:24,340 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-21 16:58:24,357 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/data/64d912561/d059a15aa52449099df3e7aca8600d17/FLAGfcc0674da [2022-11-21 16:58:24,374 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/data/64d912561/d059a15aa52449099df3e7aca8600d17 [2022-11-21 16:58:24,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:58:24,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:58:24,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:58:24,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:58:24,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:58:24,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:58:24" (1/1) ... [2022-11-21 16:58:24,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375305cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:24, skipping insertion in model container [2022-11-21 16:58:24,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:58:24" (1/1) ... [2022-11-21 16:58:24,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:58:24,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:58:24,734 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_370c48fa-1064-4775-abb8-d64d9b29723b/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-21 16:58:24,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:58:24,982 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:58:24,994 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_370c48fa-1064-4775-abb8-d64d9b29723b/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-21 16:58:25,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:58:25,072 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:58:25,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25 WrapperNode [2022-11-21 16:58:25,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:58:25,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:58:25,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:58:25,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:58:25,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,143 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-21 16:58:25,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:58:25,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:58:25,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:58:25,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:58:25,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:58:25,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:58:25,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:58:25,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:58:25,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (1/1) ... [2022-11-21 16:58:25,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:58:25,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:25,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:58:25,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:58:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:58:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:58:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:58:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:58:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:58:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:58:25,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:58:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:58:25,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:58:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:58:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:58:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:58:25,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:58:25,297 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:58:25,493 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:58:25,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:58:25,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:58:25,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:58:25,850 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:58:25,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:58:25 BoogieIcfgContainer [2022-11-21 16:58:25,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:58:25,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:58:25,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:58:25,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:58:25,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:58:24" (1/3) ... [2022-11-21 16:58:25,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d62eaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:58:25, skipping insertion in model container [2022-11-21 16:58:25,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:25" (2/3) ... [2022-11-21 16:58:25,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d62eaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:58:25, skipping insertion in model container [2022-11-21 16:58:25,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:58:25" (3/3) ... [2022-11-21 16:58:25,864 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-11-21 16:58:25,885 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:58:25,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:58:25,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 16:58:25,899 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:58:25,995 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:58:26,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 76 transitions, 162 flow [2022-11-21 16:58:26,143 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2022-11-21 16:58:26,144 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:58:26,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-21 16:58:26,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 76 transitions, 162 flow [2022-11-21 16:58:26,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 74 transitions, 154 flow [2022-11-21 16:58:26,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:58:26,194 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5371b528, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:58:26,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 16:58:26,227 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-11-21 16:58:26,227 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:58:26,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:58:26,229 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-21 16:58:26,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:58:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash 336527263, now seen corresponding path program 1 times [2022-11-21 16:58:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:26,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848923852] [2022-11-21 16:58:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:26,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:58:26,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:26,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848923852] [2022-11-21 16:58:26,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848923852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:26,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:58:26,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:58:26,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468427399] [2022-11-21 16:58:26,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:26,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:58:26,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:58:26,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:58:26,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2022-11-21 16:58:26,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-11-21 16:58:26,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:58:26,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2022-11-21 16:58:26,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:58:26,800 INFO L130 PetriNetUnfolder]: 10/100 cut-off events. [2022-11-21 16:58:26,801 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:58:26,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 100 events. 10/100 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 215 event pairs, 0 based on Foata normal form. 9/99 useless extension candidates. Maximal degree in co-relation 109. Up to 26 conditions per place. [2022-11-21 16:58:26,805 INFO L137 encePairwiseOnDemand]: 67/76 looper letters, 9 selfloop transitions, 3 changer transitions 2/75 dead transitions. [2022-11-21 16:58:26,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 187 flow [2022-11-21 16:58:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:58:26,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:58:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2022-11-21 16:58:26,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254385964912281 [2022-11-21 16:58:26,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 211 transitions. [2022-11-21 16:58:26,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 211 transitions. [2022-11-21 16:58:26,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:58:26,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 211 transitions. [2022-11-21 16:58:26,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2022-11-21 16:58:26,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2022-11-21 16:58:26,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2022-11-21 16:58:26,849 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 154 flow. Second operand 3 states and 211 transitions. [2022-11-21 16:58:26,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 187 flow [2022-11-21 16:58:26,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:58:26,863 INFO L231 Difference]: Finished difference. Result has 79 places, 71 transitions, 163 flow [2022-11-21 16:58:26,866 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=79, PETRI_TRANSITIONS=71} [2022-11-21 16:58:26,874 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2022-11-21 16:58:26,875 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 71 transitions, 163 flow [2022-11-21 16:58:26,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-11-21 16:58:26,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:58:26,876 INFO L209 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:26,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:58:26,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:58:26,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1591033161, now seen corresponding path program 1 times [2022-11-21 16:58:26,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:26,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687790499] [2022-11-21 16:58:26,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:26,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:58:27,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:27,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687790499] [2022-11-21 16:58:27,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687790499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:27,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:58:27,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:58:27,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000239773] [2022-11-21 16:58:27,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:27,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:58:27,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:58:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:58:27,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2022-11-21 16:58:27,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 71 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2022-11-21 16:58:27,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:58:27,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2022-11-21 16:58:27,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:58:27,213 INFO L130 PetriNetUnfolder]: 5/85 cut-off events. [2022-11-21 16:58:27,213 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-21 16:58:27,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 85 events. 5/85 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 124 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 14 conditions per place. [2022-11-21 16:58:27,215 INFO L137 encePairwiseOnDemand]: 71/76 looper letters, 7 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2022-11-21 16:58:27,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 181 flow [2022-11-21 16:58:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:58:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:58:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2022-11-21 16:58:27,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2022-11-21 16:58:27,220 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 264 transitions. [2022-11-21 16:58:27,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 264 transitions. [2022-11-21 16:58:27,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:58:27,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 264 transitions. [2022-11-21 16:58:27,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-11-21 16:58:27,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:58:27,241 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:58:27,241 INFO L175 Difference]: Start difference. First operand has 79 places, 71 transitions, 163 flow. Second operand 4 states and 264 transitions. [2022-11-21 16:58:27,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 71 transitions, 181 flow [2022-11-21 16:58:27,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 71 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:58:27,244 INFO L231 Difference]: Finished difference. Result has 79 places, 69 transitions, 158 flow [2022-11-21 16:58:27,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=79, PETRI_TRANSITIONS=69} [2022-11-21 16:58:27,245 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2022-11-21 16:58:27,246 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 69 transitions, 158 flow [2022-11-21 16:58:27,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2022-11-21 16:58:27,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:58:27,246 INFO L209 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:27,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:58:27,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:58:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:27,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1428009362, now seen corresponding path program 1 times [2022-11-21 16:58:27,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:27,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585073382] [2022-11-21 16:58:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:27,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:58:27,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:27,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585073382] [2022-11-21 16:58:27,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585073382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:27,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:58:27,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:58:27,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413678169] [2022-11-21 16:58:27,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:27,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:58:27,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:27,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:58:27,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:58:27,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2022-11-21 16:58:27,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2022-11-21 16:58:27,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:58:27,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2022-11-21 16:58:27,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:58:27,468 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2022-11-21 16:58:27,468 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-21 16:58:27,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 79 events. 3/79 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 4/81 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2022-11-21 16:58:27,469 INFO L137 encePairwiseOnDemand]: 71/76 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2022-11-21 16:58:27,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 69 transitions, 172 flow [2022-11-21 16:58:27,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:58:27,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:58:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2022-11-21 16:58:27,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8618421052631579 [2022-11-21 16:58:27,472 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 262 transitions. [2022-11-21 16:58:27,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 262 transitions. [2022-11-21 16:58:27,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:58:27,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 262 transitions. [2022-11-21 16:58:27,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 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) [2022-11-21 16:58:27,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:58:27,476 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:58:27,477 INFO L175 Difference]: Start difference. First operand has 79 places, 69 transitions, 158 flow. Second operand 4 states and 262 transitions. [2022-11-21 16:58:27,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 69 transitions, 172 flow [2022-11-21 16:58:27,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 69 transitions, 165 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:58:27,479 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2022-11-21 16:58:27,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2022-11-21 16:58:27,480 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2022-11-21 16:58:27,480 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2022-11-21 16:58:27,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2022-11-21 16:58:27,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-21 16:58:27,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-21 16:58:27,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-21 16:58:27,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-21 16:58:27,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-21 16:58:27,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-21 16:58:27,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-21 16:58:27,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-21 16:58:27,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-21 16:58:27,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-21 16:58:27,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:58:27,488 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 16:58:27,495 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:58:27,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:58:27,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:58:27 BasicIcfg [2022-11-21 16:58:27,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:58:27,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:58:27,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:58:27,503 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:58:27,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:58:25" (3/4) ... [2022-11-21 16:58:27,507 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:58:27,513 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:58:27,513 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:58:27,518 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-21 16:58:27,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:58:27,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:58:27,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:58:27,557 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:58:27,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:58:27,558 INFO L158 Benchmark]: Toolchain (without parser) took 3179.12ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 96.9MB in the end (delta: 14.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-21 16:58:27,559 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:58:27,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.31ms. Allocated memory is still 151.0MB. Free memory was 110.8MB in the beginning and 113.1MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:58:27,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.23ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 111.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:58:27,561 INFO L158 Benchmark]: Boogie Preprocessor took 29.66ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:58:27,561 INFO L158 Benchmark]: RCFGBuilder took 678.90ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 95.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:58:27,562 INFO L158 Benchmark]: TraceAbstraction took 1645.92ms. Allocated memory is still 151.0MB. Free memory was 95.0MB in the beginning and 99.0MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:58:27,562 INFO L158 Benchmark]: Witness Printer took 55.15ms. Allocated memory is still 151.0MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:58:27,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.31ms. Allocated memory is still 151.0MB. Free memory was 110.8MB in the beginning and 113.1MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.23ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 111.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.66ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 678.90ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 95.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1645.92ms. Allocated memory is still 151.0MB. Free memory was 95.0MB in the beginning and 99.0MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.15ms. Allocated memory is still 151.0MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 95 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:58:27,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370c48fa-1064-4775-abb8-d64d9b29723b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE