./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8 --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 e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- 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-e04fb08 [2022-11-16 12:49:13,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:49:13,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:49:13,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:49:13,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:49:13,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:49:13,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:49:13,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:49:13,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:49:13,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:49:13,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:49:13,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:49:13,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:49:13,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:49:13,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:49:13,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:49:13,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:49:13,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:49:13,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:49:13,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:49:13,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:49:13,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:49:13,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:49:14,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:49:14,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:49:14,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:49:14,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:49:14,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:49:14,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:49:14,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:49:14,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:49:14,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:49:14,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:49:14,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:49:14,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:49:14,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:49:14,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:49:14,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:49:14,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:49:14,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:49:14,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:49:14,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:49:14,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:49:14,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:49:14,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:49:14,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:49:14,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:49:14,108 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:49:14,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:49:14,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:49:14,110 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:49:14,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:49:14,112 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:49:14,112 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:49:14,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:49:14,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:49:14,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:49:14,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:49:14,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:49:14,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:49:14,114 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:49:14,114 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:49:14,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:49:14,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:49:14,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:49:14,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:49:14,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:49:14,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:49:14,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:14,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:49:14,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:49:14,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:49:14,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:49:14,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:49:14,120 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:49:14,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:49:14,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:49:14,130 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_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2022-11-16 12:49:14,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:49:14,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:49:14,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:49:14,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:49:14,456 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:49:14,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2022-11-16 12:49:14,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/data/e9bd74d3c/c9538298fa584da4bfa75b3317b1ccfa/FLAG8c835129d [2022-11-16 12:49:15,255 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:49:15,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2022-11-16 12:49:15,274 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/data/e9bd74d3c/c9538298fa584da4bfa75b3317b1ccfa/FLAG8c835129d [2022-11-16 12:49:15,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/data/e9bd74d3c/c9538298fa584da4bfa75b3317b1ccfa [2022-11-16 12:49:15,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:49:15,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:49:15,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:15,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:49:15,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:49:15,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:15" (1/1) ... [2022-11-16 12:49:15,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652ad2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:15, skipping insertion in model container [2022-11-16 12:49:15,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:15" (1/1) ... [2022-11-16 12:49:15,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:49:15,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:49:15,847 WARN L229 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_42042c3b-abf6-46cf-aea4-6f1e5085eea6/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i[951,964] [2022-11-16 12:49:16,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:16,205 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:49:16,220 WARN L229 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_42042c3b-abf6-46cf-aea4-6f1e5085eea6/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i[951,964] [2022-11-16 12:49:16,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:16,316 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:49:16,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16 WrapperNode [2022-11-16 12:49:16,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:16,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:16,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:49:16,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:49:16,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,381 INFO L138 Inliner]: procedures = 177, calls = 84, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 201 [2022-11-16 12:49:16,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:16,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:49:16,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:49:16,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:49:16,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,442 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:49:16,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:49:16,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:49:16,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:49:16,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (1/1) ... [2022-11-16 12:49:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:16,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:16,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:49:16,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:49:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:49:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:49:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:49:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:49:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:49:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:49:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:49:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:49:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:49:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:49:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:49:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:49:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 12:49:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 12:49:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:49:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:49:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:49:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:49:16,612 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:49:16,851 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:49:16,854 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:49:17,604 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:49:18,038 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:49:18,038 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:49:18,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:18 BoogieIcfgContainer [2022-11-16 12:49:18,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:49:18,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:49:18,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:49:18,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:49:18,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:49:15" (1/3) ... [2022-11-16 12:49:18,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a43d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:18, skipping insertion in model container [2022-11-16 12:49:18,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:16" (2/3) ... [2022-11-16 12:49:18,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a43d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:18, skipping insertion in model container [2022-11-16 12:49:18,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:18" (3/3) ... [2022-11-16 12:49:18,052 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2022-11-16 12:49:18,063 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:49:18,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:49:18,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 12:49:18,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:49:18,214 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:49:18,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions, 344 flow [2022-11-16 12:49:18,395 INFO L130 PetriNetUnfolder]: 2/158 cut-off events. [2022-11-16 12:49:18,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:49:18,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 2/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-11-16 12:49:18,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 162 transitions, 344 flow [2022-11-16 12:49:18,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 158 transitions, 328 flow [2022-11-16 12:49:18,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:49:18,457 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;@8c8a76c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:49:18,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 12:49:18,478 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-11-16 12:49:18,478 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:49:18,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:18,480 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] [2022-11-16 12:49:18,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:49:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1945385376, now seen corresponding path program 1 times [2022-11-16 12:49:18,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:18,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989921618] [2022-11-16 12:49:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:49:19,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:19,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989921618] [2022-11-16 12:49:19,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989921618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:19,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:19,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:49:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804210203] [2022-11-16 12:49:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:19,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:49:19,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:19,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:49:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:49:19,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 162 [2022-11-16 12:49:19,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 158 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2022-11-16 12:49:19,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:19,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 162 [2022-11-16 12:49:19,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:23,208 INFO L130 PetriNetUnfolder]: 3588/12627 cut-off events. [2022-11-16 12:49:23,209 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-16 12:49:23,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17856 conditions, 12627 events. 3588/12627 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 151415 event pairs, 2917 based on Foata normal form. 679/10895 useless extension candidates. Maximal degree in co-relation 17777. Up to 5010 conditions per place. [2022-11-16 12:49:23,368 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 33 selfloop transitions, 5 changer transitions 0/169 dead transitions. [2022-11-16 12:49:23,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 169 transitions, 435 flow [2022-11-16 12:49:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:49:23,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:49:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2022-11-16 12:49:23,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9362139917695473 [2022-11-16 12:49:23,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2022-11-16 12:49:23,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2022-11-16 12:49:23,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:23,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2022-11-16 12:49:23,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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) [2022-11-16 12:49:23,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2022-11-16 12:49:23,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2022-11-16 12:49:23,409 INFO L175 Difference]: Start difference. First operand has 169 places, 158 transitions, 328 flow. Second operand 3 states and 455 transitions. [2022-11-16 12:49:23,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 169 transitions, 435 flow [2022-11-16 12:49:23,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 169 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:49:23,427 INFO L231 Difference]: Finished difference. Result has 167 places, 159 transitions, 365 flow [2022-11-16 12:49:23,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=167, PETRI_TRANSITIONS=159} [2022-11-16 12:49:23,436 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -2 predicate places. [2022-11-16 12:49:23,437 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 159 transitions, 365 flow [2022-11-16 12:49:23,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2022-11-16 12:49:23,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:23,439 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] [2022-11-16 12:49:23,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:49:23,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:49:23,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:23,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1360067449, now seen corresponding path program 1 times [2022-11-16 12:49:23,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:23,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368770780] [2022-11-16 12:49:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:23,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:49:23,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:23,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368770780] [2022-11-16 12:49:23,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368770780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:23,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:23,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:49:23,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137603247] [2022-11-16 12:49:23,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:23,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:49:23,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:23,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:49:23,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:49:23,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 162 [2022-11-16 12:49:23,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 159 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2022-11-16 12:49:23,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:23,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 162 [2022-11-16 12:49:23,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:25,369 INFO L130 PetriNetUnfolder]: 2062/4214 cut-off events. [2022-11-16 12:49:25,369 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2022-11-16 12:49:25,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9279 conditions, 4214 events. 2062/4214 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 34008 event pairs, 245 based on Foata normal form. 0/3284 useless extension candidates. Maximal degree in co-relation 9201. Up to 1704 conditions per place. [2022-11-16 12:49:25,426 INFO L137 encePairwiseOnDemand]: 149/162 looper letters, 42 selfloop transitions, 13 changer transitions 0/186 dead transitions. [2022-11-16 12:49:25,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 186 transitions, 555 flow [2022-11-16 12:49:25,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:49:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:49:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 599 transitions. [2022-11-16 12:49:25,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9243827160493827 [2022-11-16 12:49:25,435 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 599 transitions. [2022-11-16 12:49:25,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 599 transitions. [2022-11-16 12:49:25,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:25,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 599 transitions. [2022-11-16 12:49:25,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.75) internal successors, (599), 4 states have internal predecessors, (599), 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) [2022-11-16 12:49:25,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2022-11-16 12:49:25,444 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2022-11-16 12:49:25,444 INFO L175 Difference]: Start difference. First operand has 167 places, 159 transitions, 365 flow. Second operand 4 states and 599 transitions. [2022-11-16 12:49:25,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 186 transitions, 555 flow [2022-11-16 12:49:25,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 186 transitions, 550 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:49:25,451 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 463 flow [2022-11-16 12:49:25,452 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2022-11-16 12:49:25,453 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, 2 predicate places. [2022-11-16 12:49:25,453 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 463 flow [2022-11-16 12:49:25,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2022-11-16 12:49:25,454 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:25,454 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] [2022-11-16 12:49:25,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:49:25,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:49:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash -895349872, now seen corresponding path program 1 times [2022-11-16 12:49:25,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:25,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767409253] [2022-11-16 12:49:25,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:25,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:49:25,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767409253] [2022-11-16 12:49:25,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767409253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:25,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:25,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:49:25,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204727959] [2022-11-16 12:49:25,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:25,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:49:25,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:25,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:49:25,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:49:25,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 162 [2022-11-16 12:49:25,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2022-11-16 12:49:25,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:25,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 162 [2022-11-16 12:49:25,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:26,495 INFO L130 PetriNetUnfolder]: 835/2032 cut-off events. [2022-11-16 12:49:26,495 INFO L131 PetriNetUnfolder]: For 1040/1040 co-relation queries the response was YES. [2022-11-16 12:49:26,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4773 conditions, 2032 events. 835/2032 cut-off events. For 1040/1040 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 14487 event pairs, 86 based on Foata normal form. 351/2194 useless extension candidates. Maximal degree in co-relation 4692. Up to 1169 conditions per place. [2022-11-16 12:49:26,523 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 33 selfloop transitions, 5 changer transitions 0/169 dead transitions. [2022-11-16 12:49:26,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 169 transitions, 509 flow [2022-11-16 12:49:26,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:49:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:49:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-11-16 12:49:26,529 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8919753086419753 [2022-11-16 12:49:26,529 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-11-16 12:49:26,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-11-16 12:49:26,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:26,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-11-16 12:49:26,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 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) [2022-11-16 12:49:26,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2022-11-16 12:49:26,536 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2022-11-16 12:49:26,536 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 463 flow. Second operand 4 states and 578 transitions. [2022-11-16 12:49:26,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 169 transitions, 509 flow [2022-11-16 12:49:26,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 169 transitions, 486 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-16 12:49:26,563 INFO L231 Difference]: Finished difference. Result has 167 places, 159 transitions, 394 flow [2022-11-16 12:49:26,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=394, PETRI_PLACES=167, PETRI_TRANSITIONS=159} [2022-11-16 12:49:26,566 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -2 predicate places. [2022-11-16 12:49:26,567 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 159 transitions, 394 flow [2022-11-16 12:49:26,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2022-11-16 12:49:26,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:26,568 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] [2022-11-16 12:49:26,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:49:26,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:49:26,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1711236915, now seen corresponding path program 1 times [2022-11-16 12:49:26,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:26,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122485631] [2022-11-16 12:49:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:49:26,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:26,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122485631] [2022-11-16 12:49:26,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122485631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:26,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:26,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:49:26,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464951142] [2022-11-16 12:49:26,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:26,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:49:26,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:26,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:49:26,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:49:26,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 162 [2022-11-16 12:49:26,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 159 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 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) [2022-11-16 12:49:26,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:26,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 162 [2022-11-16 12:49:26,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:27,659 INFO L130 PetriNetUnfolder]: 622/1672 cut-off events. [2022-11-16 12:49:27,660 INFO L131 PetriNetUnfolder]: For 699/699 co-relation queries the response was YES. [2022-11-16 12:49:27,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 1672 events. 622/1672 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 11560 event pairs, 42 based on Foata normal form. 0/1630 useless extension candidates. Maximal degree in co-relation 3330. Up to 342 conditions per place. [2022-11-16 12:49:27,677 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 42 selfloop transitions, 13 changer transitions 4/190 dead transitions. [2022-11-16 12:49:27,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 190 transitions, 602 flow [2022-11-16 12:49:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:49:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:49:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 738 transitions. [2022-11-16 12:49:27,684 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2022-11-16 12:49:27,684 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 738 transitions. [2022-11-16 12:49:27,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 738 transitions. [2022-11-16 12:49:27,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:27,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 738 transitions. [2022-11-16 12:49:27,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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) [2022-11-16 12:49:27,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2022-11-16 12:49:27,693 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2022-11-16 12:49:27,693 INFO L175 Difference]: Start difference. First operand has 167 places, 159 transitions, 394 flow. Second operand 5 states and 738 transitions. [2022-11-16 12:49:27,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 190 transitions, 602 flow [2022-11-16 12:49:27,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 190 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:49:27,704 INFO L231 Difference]: Finished difference. Result has 170 places, 159 transitions, 430 flow [2022-11-16 12:49:27,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=430, PETRI_PLACES=170, PETRI_TRANSITIONS=159} [2022-11-16 12:49:27,707 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, 1 predicate places. [2022-11-16 12:49:27,707 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 159 transitions, 430 flow [2022-11-16 12:49:27,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 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) [2022-11-16 12:49:27,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:27,708 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, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:27,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:49:27,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:49:27,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash 644172337, now seen corresponding path program 1 times [2022-11-16 12:49:27,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:27,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492679761] [2022-11-16 12:49:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:27,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:49:28,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492679761] [2022-11-16 12:49:28,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492679761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:28,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:28,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:49:28,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595900221] [2022-11-16 12:49:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:28,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:49:28,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:28,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:49:28,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:49:28,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 162 [2022-11-16 12:49:28,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 159 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 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) [2022-11-16 12:49:28,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:28,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 162 [2022-11-16 12:49:28,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:28,702 INFO L130 PetriNetUnfolder]: 595/1860 cut-off events. [2022-11-16 12:49:28,703 INFO L131 PetriNetUnfolder]: For 1454/1454 co-relation queries the response was YES. [2022-11-16 12:49:28,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3980 conditions, 1860 events. 595/1860 cut-off events. For 1454/1454 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 13713 event pairs, 126 based on Foata normal form. 16/1816 useless extension candidates. Maximal degree in co-relation 3899. Up to 342 conditions per place. [2022-11-16 12:49:28,716 INFO L137 encePairwiseOnDemand]: 153/162 looper letters, 0 selfloop transitions, 0 changer transitions 182/182 dead transitions. [2022-11-16 12:49:28,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 182 transitions, 566 flow [2022-11-16 12:49:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:49:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:49:28,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 865 transitions. [2022-11-16 12:49:28,721 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8899176954732511 [2022-11-16 12:49:28,721 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 865 transitions. [2022-11-16 12:49:28,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 865 transitions. [2022-11-16 12:49:28,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:28,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 865 transitions. [2022-11-16 12:49:28,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.16666666666666) internal successors, (865), 6 states have internal predecessors, (865), 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) [2022-11-16 12:49:28,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2022-11-16 12:49:28,730 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2022-11-16 12:49:28,730 INFO L175 Difference]: Start difference. First operand has 170 places, 159 transitions, 430 flow. Second operand 6 states and 865 transitions. [2022-11-16 12:49:28,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 182 transitions, 566 flow [2022-11-16 12:49:28,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 182 transitions, 511 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-16 12:49:28,743 INFO L231 Difference]: Finished difference. Result has 165 places, 0 transitions, 0 flow [2022-11-16 12:49:28,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=165, PETRI_TRANSITIONS=0} [2022-11-16 12:49:28,744 INFO L288 CegarLoopForPetriNet]: 169 programPoint places, -4 predicate places. [2022-11-16 12:49:28,744 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 0 transitions, 0 flow [2022-11-16 12:49:28,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 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) [2022-11-16 12:49:28,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 12:49:28,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 12:49:28,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 12:49:28,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 12:49:28,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 12:49:28,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 12:49:28,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 12:49:28,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 12:49:28,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 12:49:28,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 12:49:28,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 12:49:28,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 12:49:28,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 12:49:28,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 12:49:28,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 12:49:28,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 12:49:28,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 12:49:28,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 12:49:28,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 12:49:28,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 12:49:28,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:49:28,756 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 12:49:28,764 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:49:28,764 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:49:28,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:49:28 BasicIcfg [2022-11-16 12:49:28,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:49:28,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:49:28,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:49:28,772 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:49:28,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:18" (3/4) ... [2022-11-16 12:49:28,776 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:49:28,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 12:49:28,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 12:49:28,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 12:49:28,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 12:49:28,790 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-11-16 12:49:28,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 12:49:28,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 12:49:28,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:49:28,850 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:49:28,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:49:28,851 INFO L158 Benchmark]: Toolchain (without parser) took 13352.62ms. Allocated memory was 92.3MB in the beginning and 1.0GB in the end (delta: 914.4MB). Free memory was 65.6MB in the beginning and 548.8MB in the end (delta: -483.2MB). Peak memory consumption was 432.2MB. Max. memory is 16.1GB. [2022-11-16 12:49:28,851 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:49:28,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 817.70ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 53.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:49:28,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.66ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 50.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:49:28,853 INFO L158 Benchmark]: Boogie Preprocessor took 83.85ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 48.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:49:28,854 INFO L158 Benchmark]: RCFGBuilder took 1574.84ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 48.4MB in the beginning and 68.4MB in the end (delta: -20.0MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-11-16 12:49:28,854 INFO L158 Benchmark]: TraceAbstraction took 10727.36ms. Allocated memory was 123.7MB in the beginning and 1.0GB in the end (delta: 882.9MB). Free memory was 68.4MB in the beginning and 551.9MB in the end (delta: -483.5MB). Peak memory consumption was 398.9MB. Max. memory is 16.1GB. [2022-11-16 12:49:28,855 INFO L158 Benchmark]: Witness Printer took 78.35ms. Allocated memory is still 1.0GB. Free memory was 551.9MB in the beginning and 548.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:49:28,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 817.70ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 53.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.66ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 50.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 83.85ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 48.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1574.84ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 48.4MB in the beginning and 68.4MB in the end (delta: -20.0MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10727.36ms. Allocated memory was 123.7MB in the beginning and 1.0GB in the end (delta: 882.9MB). Free memory was 68.4MB in the beginning and 551.9MB in the end (delta: -483.5MB). Peak memory consumption was 398.9MB. Max. memory is 16.1GB. * Witness Printer took 78.35ms. Allocated memory is still 1.0GB. Free memory was 551.9MB in the beginning and 548.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: 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, 203 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: 10.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 17 mSDtfsCounter, 292 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 445 NumberOfCodeBlocks, 445 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 1110 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! [2022-11-16 12:49:28,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42042c3b-abf6-46cf-aea4-6f1e5085eea6/bin/uautomizer-tPACEb0tL8/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