./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/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_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/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_462d13ac-9b41-46d7-a404-8436bc686ac3/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 ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 --- 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 16:27:54,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:27:54,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:27:54,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:27:54,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:27:54,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:27:54,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:27:54,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:27:54,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:27:54,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:27:54,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:27:54,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:27:54,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:27:54,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:27:54,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:27:54,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:27:54,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:27:54,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:27:54,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:27:54,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:27:54,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:27:54,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:27:54,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:27:54,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:27:54,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:27:54,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:27:54,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:27:54,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:27:54,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:27:54,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:27:54,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:27:54,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:27:54,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:27:54,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:27:54,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:27:54,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:27:54,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:27:54,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:27:54,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:27:54,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:27:54,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:27:54,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:27:54,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:27:54,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:27:54,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:27:54,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:27:54,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:27:54,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:27:54,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:27:54,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:27:54,457 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:27:54,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:27:54,457 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:27:54,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:27:54,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:27:54,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:27:54,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:27:54,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:27:54,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:27:54,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:27:54,459 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:27:54,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:27:54,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:27:54,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:27:54,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:27:54,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:27:54,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:27:54,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:27:54,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:27:54,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:27:54,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:27:54,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:27:54,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:27:54,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:27:54,468 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:27:54,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:27:54,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:27:54,469 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_462d13ac-9b41-46d7-a404-8436bc686ac3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 [2022-11-21 16:27:54,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:27:54,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:27:54,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:27:54,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:27:54,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:27:54,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i [2022-11-21 16:27:57,807 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:27:58,156 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:27:58,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i [2022-11-21 16:27:58,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/data/fda1eae41/11399bad257444a695617c67071a7491/FLAG903de5647 [2022-11-21 16:27:58,196 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/data/fda1eae41/11399bad257444a695617c67071a7491 [2022-11-21 16:27:58,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:27:58,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:27:58,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:27:58,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:27:58,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:27:58,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:58,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409e6ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58, skipping insertion in model container [2022-11-21 16:27:58,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:58,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:27:58,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:27:58,461 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_462d13ac-9b41-46d7-a404-8436bc686ac3/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i[993,1006] [2022-11-21 16:27:58,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:27:58,788 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:27:58,801 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_462d13ac-9b41-46d7-a404-8436bc686ac3/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i[993,1006] [2022-11-21 16:27:58,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:27:58,911 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:27:58,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58 WrapperNode [2022-11-21 16:27:58,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:27:58,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:27:58,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:27:58,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:27:58,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:58,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,004 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 185 [2022-11-21 16:27:59,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:27:59,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:27:59,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:27:59,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:27:59,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,063 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:27:59,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:27:59,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:27:59,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:27:59,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (1/1) ... [2022-11-21 16:27:59,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:27:59,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:27:59,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:27:59,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:27:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:27:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:27:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:27:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:27:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:27:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:27:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:27:59,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:27:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:27:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:27:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:27:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:27:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 16:27:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 16:27:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:27:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:27:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:27:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:27:59,172 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 16:27:59,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:27:59,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:28:00,009 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:28:00,461 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:28:00,461 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:28:00,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:00 BoogieIcfgContainer [2022-11-21 16:28:00,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:28:00,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:28:00,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:28:00,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:28:00,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:27:58" (1/3) ... [2022-11-21 16:28:00,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75561a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:28:00, skipping insertion in model container [2022-11-21 16:28:00,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:27:58" (2/3) ... [2022-11-21 16:28:00,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75561a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:28:00, skipping insertion in model container [2022-11-21 16:28:00,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:00" (3/3) ... [2022-11-21 16:28:00,478 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.oepc.i [2022-11-21 16:28:00,487 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:28:00,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:28:00,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 16:28:00,500 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:28:00,603 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:28:00,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 156 transitions, 332 flow [2022-11-21 16:28:00,711 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2022-11-21 16:28:00,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:28:00,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 152 events. 2/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-21 16:28:00,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 156 transitions, 332 flow [2022-11-21 16:28:00,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 152 transitions, 316 flow [2022-11-21 16:28:00,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:28:00,741 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;@494a0e08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:28:00,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 16:28:00,759 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2022-11-21 16:28:00,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:28:00,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:28:00,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:00,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:28:00,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 482109995, now seen corresponding path program 1 times [2022-11-21 16:28:00,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:00,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757395672] [2022-11-21 16:28:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:00,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:01,321 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 16:28:01,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:01,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757395672] [2022-11-21 16:28:01,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757395672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:01,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:01,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:28:01,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017672372] [2022-11-21 16:28:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:01,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:28:01,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:01,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:28:01,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:28:01,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 156 [2022-11-21 16:28:01,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 152 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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 16:28:01,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:28:01,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 156 [2022-11-21 16:28:01,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:28:04,355 INFO L130 PetriNetUnfolder]: 3157/11211 cut-off events. [2022-11-21 16:28:04,356 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-11-21 16:28:04,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15848 conditions, 11211 events. 3157/11211 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 130938 event pairs, 2352 based on Foata normal form. 555/9513 useless extension candidates. Maximal degree in co-relation 15773. Up to 4404 conditions per place. [2022-11-21 16:28:04,486 INFO L137 encePairwiseOnDemand]: 141/156 looper letters, 31 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2022-11-21 16:28:04,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 417 flow [2022-11-21 16:28:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:28:04,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:28:04,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2022-11-21 16:28:04,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2022-11-21 16:28:04,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2022-11-21 16:28:04,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2022-11-21 16:28:04,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:28:04,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2022-11-21 16:28:04,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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 16:28:04,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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 16:28:04,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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 16:28:04,533 INFO L175 Difference]: Start difference. First operand has 163 places, 152 transitions, 316 flow. Second operand 3 states and 438 transitions. [2022-11-21 16:28:04,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 417 flow [2022-11-21 16:28:04,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 162 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:28:04,544 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 353 flow [2022-11-21 16:28:04,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2022-11-21 16:28:04,550 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -2 predicate places. [2022-11-21 16:28:04,550 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 353 flow [2022-11-21 16:28:04,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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 16:28:04,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:28:04,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:04,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:28:04,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:28:04,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:04,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1216413808, now seen corresponding path program 1 times [2022-11-21 16:28:04,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:04,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310366060] [2022-11-21 16:28:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:04,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,791 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 16:28:04,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:04,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310366060] [2022-11-21 16:28:04,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310366060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:04,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:04,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:28:04,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635027712] [2022-11-21 16:28:04,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:04,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:28:04,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:04,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:28:04,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:28:04,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 156 [2022-11-21 16:28:04,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 353 flow. Second operand has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 16:28:04,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:28:04,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 156 [2022-11-21 16:28:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:28:06,028 INFO L130 PetriNetUnfolder]: 1809/3731 cut-off events. [2022-11-21 16:28:06,028 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-11-21 16:28:06,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8262 conditions, 3731 events. 1809/3731 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 30072 event pairs, 238 based on Foata normal form. 0/2873 useless extension candidates. Maximal degree in co-relation 8188. Up to 1542 conditions per place. [2022-11-21 16:28:06,073 INFO L137 encePairwiseOnDemand]: 143/156 looper letters, 39 selfloop transitions, 13 changer transitions 0/178 dead transitions. [2022-11-21 16:28:06,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 178 transitions, 533 flow [2022-11-21 16:28:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:28:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:28:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 576 transitions. [2022-11-21 16:28:06,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2022-11-21 16:28:06,076 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 576 transitions. [2022-11-21 16:28:06,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 576 transitions. [2022-11-21 16:28:06,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:28:06,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 576 transitions. [2022-11-21 16:28:06,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 16:28:06,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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 16:28:06,083 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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 16:28:06,083 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 353 flow. Second operand 4 states and 576 transitions. [2022-11-21 16:28:06,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 178 transitions, 533 flow [2022-11-21 16:28:06,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 178 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:28:06,092 INFO L231 Difference]: Finished difference. Result has 165 places, 161 transitions, 451 flow [2022-11-21 16:28:06,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=165, PETRI_TRANSITIONS=161} [2022-11-21 16:28:06,094 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2022-11-21 16:28:06,095 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 161 transitions, 451 flow [2022-11-21 16:28:06,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 16:28:06,096 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:28:06,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:06,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:28:06,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:28:06,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:06,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1435674581, now seen corresponding path program 1 times [2022-11-21 16:28:06,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:06,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331429539] [2022-11-21 16:28:06,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:06,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:06,352 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 16:28:06,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:06,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331429539] [2022-11-21 16:28:06,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331429539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:06,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:06,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:28:06,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971813917] [2022-11-21 16:28:06,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:06,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:28:06,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:06,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:28:06,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:28:06,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 156 [2022-11-21 16:28:06,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 161 transitions, 451 flow. Second operand has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 16:28:06,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:28:06,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 156 [2022-11-21 16:28:06,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:28:07,213 INFO L130 PetriNetUnfolder]: 733/3097 cut-off events. [2022-11-21 16:28:07,214 INFO L131 PetriNetUnfolder]: For 2109/2109 co-relation queries the response was YES. [2022-11-21 16:28:07,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5527 conditions, 3097 events. 733/3097 cut-off events. For 2109/2109 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 27905 event pairs, 393 based on Foata normal form. 307/3117 useless extension candidates. Maximal degree in co-relation 5450. Up to 1016 conditions per place. [2022-11-21 16:28:07,244 INFO L137 encePairwiseOnDemand]: 147/156 looper letters, 31 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2022-11-21 16:28:07,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 491 flow [2022-11-21 16:28:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:28:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:28:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 556 transitions. [2022-11-21 16:28:07,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8910256410256411 [2022-11-21 16:28:07,249 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 556 transitions. [2022-11-21 16:28:07,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 556 transitions. [2022-11-21 16:28:07,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:28:07,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 556 transitions. [2022-11-21 16:28:07,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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 16:28:07,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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 16:28:07,255 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 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 16:28:07,255 INFO L175 Difference]: Start difference. First operand has 165 places, 161 transitions, 451 flow. Second operand 4 states and 556 transitions. [2022-11-21 16:28:07,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 491 flow [2022-11-21 16:28:07,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 162 transitions, 468 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-21 16:28:07,265 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 382 flow [2022-11-21 16:28:07,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=382, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2022-11-21 16:28:07,267 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -2 predicate places. [2022-11-21 16:28:07,268 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 382 flow [2022-11-21 16:28:07,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 16:28:07,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:28:07,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:07,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:28:07,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:28:07,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:07,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1854794357, now seen corresponding path program 1 times [2022-11-21 16:28:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:07,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106203036] [2022-11-21 16:28:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:07,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:07,581 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 16:28:07,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:07,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106203036] [2022-11-21 16:28:07,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106203036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:07,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:07,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:28:07,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478107368] [2022-11-21 16:28:07,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:07,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:28:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:28:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:28:07,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 156 [2022-11-21 16:28:07,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 382 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 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 16:28:07,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:28:07,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 156 [2022-11-21 16:28:07,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:28:08,174 INFO L130 PetriNetUnfolder]: 541/1465 cut-off events. [2022-11-21 16:28:08,175 INFO L131 PetriNetUnfolder]: For 588/588 co-relation queries the response was YES. [2022-11-21 16:28:08,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2999 conditions, 1465 events. 541/1465 cut-off events. For 588/588 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9886 event pairs, 47 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 2923. Up to 278 conditions per place. [2022-11-21 16:28:08,191 INFO L137 encePairwiseOnDemand]: 147/156 looper letters, 38 selfloop transitions, 13 changer transitions 4/181 dead transitions. [2022-11-21 16:28:08,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 181 transitions, 576 flow [2022-11-21 16:28:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:28:08,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:28:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 709 transitions. [2022-11-21 16:28:08,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.908974358974359 [2022-11-21 16:28:08,199 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 709 transitions. [2022-11-21 16:28:08,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 709 transitions. [2022-11-21 16:28:08,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:28:08,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 709 transitions. [2022-11-21 16:28:08,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 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 16:28:08,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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 16:28:08,206 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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 16:28:08,206 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 382 flow. Second operand 5 states and 709 transitions. [2022-11-21 16:28:08,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 181 transitions, 576 flow [2022-11-21 16:28:08,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 181 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:28:08,218 INFO L231 Difference]: Finished difference. Result has 164 places, 153 transitions, 418 flow [2022-11-21 16:28:08,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=418, PETRI_PLACES=164, PETRI_TRANSITIONS=153} [2022-11-21 16:28:08,220 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 1 predicate places. [2022-11-21 16:28:08,220 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 418 flow [2022-11-21 16:28:08,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 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 16:28:08,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:28:08,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:28:08,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:28:08,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:28:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:08,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1258520933, now seen corresponding path program 1 times [2022-11-21 16:28:08,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:28:08,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998384960] [2022-11-21 16:28:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:08,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:28:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:08,459 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 16:28:08,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:08,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998384960] [2022-11-21 16:28:08,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998384960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:08,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:08,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:28:08,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103458141] [2022-11-21 16:28:08,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:08,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:28:08,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:08,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:28:08,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:28:08,464 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 156 [2022-11-21 16:28:08,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 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 16:28:08,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:28:08,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 156 [2022-11-21 16:28:08,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:28:08,871 INFO L130 PetriNetUnfolder]: 514/1410 cut-off events. [2022-11-21 16:28:08,871 INFO L131 PetriNetUnfolder]: For 744/744 co-relation queries the response was YES. [2022-11-21 16:28:08,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3256 conditions, 1410 events. 514/1410 cut-off events. For 744/744 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 9281 event pairs, 47 based on Foata normal form. 16/1392 useless extension candidates. Maximal degree in co-relation 3179. Up to 278 conditions per place. [2022-11-21 16:28:08,879 INFO L137 encePairwiseOnDemand]: 147/156 looper letters, 0 selfloop transitions, 0 changer transitions 173/173 dead transitions. [2022-11-21 16:28:08,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 173 transitions, 540 flow [2022-11-21 16:28:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:28:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:28:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 831 transitions. [2022-11-21 16:28:08,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878205128205128 [2022-11-21 16:28:08,882 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 831 transitions. [2022-11-21 16:28:08,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 831 transitions. [2022-11-21 16:28:08,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:28:08,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 831 transitions. [2022-11-21 16:28:08,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 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 16:28:08,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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 16:28:08,890 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 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 16:28:08,890 INFO L175 Difference]: Start difference. First operand has 164 places, 153 transitions, 418 flow. Second operand 6 states and 831 transitions. [2022-11-21 16:28:08,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 173 transitions, 540 flow [2022-11-21 16:28:08,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 173 transitions, 485 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 16:28:08,905 INFO L231 Difference]: Finished difference. Result has 159 places, 0 transitions, 0 flow [2022-11-21 16:28:08,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=159, PETRI_TRANSITIONS=0} [2022-11-21 16:28:08,906 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -4 predicate places. [2022-11-21 16:28:08,907 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 0 transitions, 0 flow [2022-11-21 16:28:08,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 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 16:28:08,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 16:28:08,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 16:28:08,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 16:28:08,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 16:28:08,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 16:28:08,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 16:28:08,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 16:28:08,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 16:28:08,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 16:28:08,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 16:28:08,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 16:28:08,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 16:28:08,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 16:28:08,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 16:28:08,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 16:28:08,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 16:28:08,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 16:28:08,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 16:28:08,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 16:28:08,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 16:28:08,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:28:08,915 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 16:28:08,920 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:28:08,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:28:08,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:28:08 BasicIcfg [2022-11-21 16:28:08,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:28:08,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:28:08,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:28:08,926 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:28:08,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:00" (3/4) ... [2022-11-21 16:28:08,929 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:28:08,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:28:08,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:28:08,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:28:08,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 16:28:08,939 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2022-11-21 16:28:08,940 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-21 16:28:08,940 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:28:08,941 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:28:08,985 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:28:08,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:28:08,986 INFO L158 Benchmark]: Toolchain (without parser) took 10782.27ms. Allocated memory was 222.3MB in the beginning and 679.5MB in the end (delta: 457.2MB). Free memory was 188.0MB in the beginning and 344.2MB in the end (delta: -156.3MB). Peak memory consumption was 302.8MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,987 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:28:08,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.79ms. Allocated memory is still 222.3MB. Free memory was 187.2MB in the beginning and 162.8MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.51ms. Allocated memory is still 222.3MB. Free memory was 162.8MB in the beginning and 159.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,988 INFO L158 Benchmark]: Boogie Preprocessor took 70.13ms. Allocated memory is still 222.3MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,988 INFO L158 Benchmark]: RCFGBuilder took 1387.41ms. Allocated memory is still 222.3MB. Free memory was 157.7MB in the beginning and 176.8MB in the end (delta: -19.1MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,989 INFO L158 Benchmark]: TraceAbstraction took 8458.95ms. Allocated memory was 222.3MB in the beginning and 679.5MB in the end (delta: 457.2MB). Free memory was 176.8MB in the beginning and 348.4MB in the end (delta: -171.6MB). Peak memory consumption was 287.7MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,989 INFO L158 Benchmark]: Witness Printer took 59.97ms. Allocated memory is still 679.5MB. Free memory was 348.4MB in the beginning and 344.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:28:08,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.79ms. Allocated memory is still 222.3MB. Free memory was 187.2MB in the beginning and 162.8MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.51ms. Allocated memory is still 222.3MB. Free memory was 162.8MB in the beginning and 159.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.13ms. Allocated memory is still 222.3MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1387.41ms. Allocated memory is still 222.3MB. Free memory was 157.7MB in the beginning and 176.8MB in the end (delta: -19.1MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8458.95ms. Allocated memory was 222.3MB in the beginning and 679.5MB in the end (delta: 457.2MB). Free memory was 176.8MB in the beginning and 348.4MB in the end (delta: -171.6MB). Peak memory consumption was 287.7MB. Max. memory is 16.1GB. * Witness Printer took 59.97ms. Allocated memory is still 679.5MB. Free memory was 348.4MB in the beginning and 344.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: 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, 195 locations, 20 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: 8.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 17 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=2, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1165 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! [2022-11-21 16:28:09,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462d13ac-9b41-46d7-a404-8436bc686ac3/bin/uautomizer-vX5HgA9Q3a/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