./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/test-hard1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-hard1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc --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 782f6af95152c43f9bba17dfd450d57dc3073723e35aa3f98da1f0b96067f4d1 --- 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-5e519f3 [2022-11-02 21:06:37,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:06:37,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:06:37,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:06:37,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:06:37,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:06:37,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:06:37,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:06:37,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:06:37,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:06:37,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:06:37,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:06:37,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:06:37,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:06:37,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:06:37,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:06:37,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:06:37,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:06:37,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:06:37,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:06:37,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:06:37,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:06:37,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:06:37,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:06:37,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:06:37,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:06:37,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:06:37,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:06:37,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:06:37,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:06:37,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:06:37,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:06:37,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:06:37,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:06:37,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:06:37,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:06:37,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:06:37,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:06:37,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:06:37,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:06:37,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:06:37,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 21:06:37,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:06:37,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:06:37,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:06:37,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:06:37,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:06:37,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:06:37,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:06:37,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:06:37,391 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:06:37,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:06:37,393 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:06:37,393 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:06:37,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:06:37,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:06:37,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:06:37,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:06:37,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:06:37,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:06:37,394 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 21:06:37,395 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:06:37,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:06:37,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:06:37,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:06:37,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:06:37,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:06:37,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:06:37,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:37,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:06:37,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:06:37,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:06:37,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:06:37,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:06:37,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:06:37,398 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_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 782f6af95152c43f9bba17dfd450d57dc3073723e35aa3f98da1f0b96067f4d1 [2022-11-02 21:06:37,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:06:37,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:06:37,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:06:37,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:06:37,751 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:06:37,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/test-hard1.wvr.c [2022-11-02 21:06:37,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/data/97cec5c9e/4d764337ee3e47ccb28015da5b9a7d7a/FLAG9c28427e1 [2022-11-02 21:06:38,483 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:06:38,484 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/sv-benchmarks/c/weaver/test-hard1.wvr.c [2022-11-02 21:06:38,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/data/97cec5c9e/4d764337ee3e47ccb28015da5b9a7d7a/FLAG9c28427e1 [2022-11-02 21:06:38,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/data/97cec5c9e/4d764337ee3e47ccb28015da5b9a7d7a [2022-11-02 21:06:38,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:06:38,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:06:38,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:38,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:06:38,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:06:38,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:38" (1/1) ... [2022-11-02 21:06:38,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1102e11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:38, skipping insertion in model container [2022-11-02 21:06:38,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:38" (1/1) ... [2022-11-02 21:06:38,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:06:38,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:06:39,131 WARN L230 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_e6ff5b99-93e6-4cae-b4d5-78229296ce59/sv-benchmarks/c/weaver/test-hard1.wvr.c[3373,3386] [2022-11-02 21:06:39,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:39,142 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:06:39,171 WARN L230 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_e6ff5b99-93e6-4cae-b4d5-78229296ce59/sv-benchmarks/c/weaver/test-hard1.wvr.c[3373,3386] [2022-11-02 21:06:39,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:39,189 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:06:39,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39 WrapperNode [2022-11-02 21:06:39,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:39,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:39,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:06:39,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:06:39,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,235 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-11-02 21:06:39,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:39,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:06:39,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:06:39,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:06:39,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:06:39,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:06:39,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:06:39,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:06:39,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (1/1) ... [2022-11-02 21:06:39,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:39,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:39,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:06:39,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:06:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:06:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:06:39,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:06:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:06:39,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:06:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 21:06:39,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 21:06:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 21:06:39,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 21:06:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:06:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:06:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:06:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 21:06:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 21:06:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:06:39,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:06:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:06:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:06:39,390 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:06:39,510 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:06:39,512 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:06:39,954 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:06:40,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:06:40,198 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 21:06:40,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:40 BoogieIcfgContainer [2022-11-02 21:06:40,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:06:40,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:06:40,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:06:40,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:06:40,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:06:38" (1/3) ... [2022-11-02 21:06:40,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1699718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:40, skipping insertion in model container [2022-11-02 21:06:40,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:39" (2/3) ... [2022-11-02 21:06:40,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1699718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:40, skipping insertion in model container [2022-11-02 21:06:40,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:40" (3/3) ... [2022-11-02 21:06:40,214 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-11-02 21:06:40,229 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:06:40,240 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:06:40,240 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-02 21:06:40,241 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:06:40,410 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 21:06:40,456 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 21:06:40,473 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 142 transitions, 316 flow [2022-11-02 21:06:40,475 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 142 transitions, 316 flow [2022-11-02 21:06:40,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 142 transitions, 316 flow [2022-11-02 21:06:40,550 INFO L130 PetriNetUnfolder]: 10/138 cut-off events. [2022-11-02 21:06:40,551 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 21:06:40,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 138 events. 10/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-02 21:06:40,559 INFO L118 LiptonReduction]: Number of co-enabled transitions 2520 [2022-11-02 21:06:47,671 INFO L133 LiptonReduction]: Checked pairs total: 4985 [2022-11-02 21:06:47,671 INFO L135 LiptonReduction]: Total number of compositions: 119 [2022-11-02 21:06:47,681 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 45 transitions, 122 flow [2022-11-02 21:06:47,982 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3618 states, 3538 states have (on average 4.402204635387225) internal successors, (15575), 3617 states have internal predecessors, (15575), 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) [2022-11-02 21:06:48,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:06:48,010 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50f399c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:06:48,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-02 21:06:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 3618 states, 3538 states have (on average 4.402204635387225) internal successors, (15575), 3617 states have internal predecessors, (15575), 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) [2022-11-02 21:06:48,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 21:06:48,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:48,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 21:06:48,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-02 21:06:48,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:48,041 INFO L85 PathProgramCache]: Analyzing trace with hash 18219862, now seen corresponding path program 1 times [2022-11-02 21:06:48,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:48,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429463801] [2022-11-02 21:06:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:48,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:48,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429463801] [2022-11-02 21:06:48,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429463801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:48,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:48,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 21:06:48,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485484767] [2022-11-02 21:06:48,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:48,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:48,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:48,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:48,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:48,499 INFO L87 Difference]: Start difference. First operand has 3618 states, 3538 states have (on average 4.402204635387225) internal successors, (15575), 3617 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:48,657 INFO L93 Difference]: Finished difference Result 1254 states and 5297 transitions. [2022-11-02 21:06:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:48,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-02 21:06:48,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:48,710 INFO L225 Difference]: With dead ends: 1254 [2022-11-02 21:06:48,714 INFO L226 Difference]: Without dead ends: 1218 [2022-11-02 21:06:48,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:48,722 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:48,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2022-11-02 21:06:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2022-11-02 21:06:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1215 states have (on average 4.22880658436214) internal successors, (5138), 1217 states have internal predecessors, (5138), 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) [2022-11-02 21:06:48,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 5138 transitions. [2022-11-02 21:06:48,896 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 5138 transitions. Word has length 4 [2022-11-02 21:06:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:48,897 INFO L495 AbstractCegarLoop]: Abstraction has 1218 states and 5138 transitions. [2022-11-02 21:06:48,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 5138 transitions. [2022-11-02 21:06:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 21:06:48,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:48,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:48,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:06:48,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-02 21:06:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1217677751, now seen corresponding path program 1 times [2022-11-02 21:06:48,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:48,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76232340] [2022-11-02 21:06:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:49,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:49,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76232340] [2022-11-02 21:06:49,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76232340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:49,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:49,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 21:06:49,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858189683] [2022-11-02 21:06:49,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:49,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:49,128 INFO L87 Difference]: Start difference. First operand 1218 states and 5138 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-02 21:06:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:49,207 INFO L93 Difference]: Finished difference Result 806 states and 3368 transitions. [2022-11-02 21:06:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:49,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-02 21:06:49,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:49,209 INFO L225 Difference]: With dead ends: 806 [2022-11-02 21:06:49,209 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 21:06:49,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:49,211 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:49,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 21:06:49,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 21:06:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 21:06:49,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-02 21:06:49,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:49,214 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:06:49,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-02 21:06:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 21:06:49,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 21:06:49,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-02 21:06:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-02 21:06:49,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-02 21:06:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-02 21:06:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-02 21:06:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-02 21:06:49,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2022-11-02 21:06:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2022-11-02 21:06:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-02 21:06:49,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-02 21:06:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-11-02 21:06:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-11-02 21:06:49,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-02 21:06:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-02 21:06:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-02 21:06:49,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-02 21:06:49,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-02 21:06:49,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-02 21:06:49,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-02 21:06:49,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-02 21:06:49,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:06:49,228 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 21:06:49,238 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:06:49,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:06:49,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:06:49 BasicIcfg [2022-11-02 21:06:49,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:06:49,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:06:49,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:06:49,250 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:06:49,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:40" (3/4) ... [2022-11-02 21:06:49,254 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:06:49,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 21:06:49,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 21:06:49,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-02 21:06:49,262 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-02 21:06:49,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-02 21:06:49,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 21:06:49,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:06:49,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:06:49,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:06:49,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:06:49,336 INFO L158 Benchmark]: Toolchain (without parser) took 10492.75ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 67.9MB in the beginning and 53.8MB in the end (delta: 14.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-02 21:06:49,336 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:06:49,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.35ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 80.2MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:06:49,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.09ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 78.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:06:49,337 INFO L158 Benchmark]: Boogie Preprocessor took 47.70ms. Allocated memory is still 104.9MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:06:49,338 INFO L158 Benchmark]: RCFGBuilder took 917.09ms. Allocated memory is still 104.9MB. Free memory was 76.8MB in the beginning and 54.2MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 21:06:49,338 INFO L158 Benchmark]: TraceAbstraction took 9041.01ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 53.4MB in the beginning and 56.9MB in the end (delta: -3.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-02 21:06:49,339 INFO L158 Benchmark]: Witness Printer took 85.96ms. Allocated memory is still 136.3MB. Free memory was 55.9MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:06:49,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.35ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 80.2MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.09ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 78.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.70ms. Allocated memory is still 104.9MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 917.09ms. Allocated memory is still 104.9MB. Free memory was 76.8MB in the beginning and 54.2MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9041.01ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 53.4MB in the beginning and 56.9MB in the end (delta: -3.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Witness Printer took 85.96ms. Allocated memory is still 136.3MB. Free memory was 55.9MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 145 PlacesBefore, 54 PlacesAfterwards, 142 TransitionsBefore, 45 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 119 TotalNumberOfCompositions, 4985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4163, positive: 4103, positive conditional: 0, positive unconditional: 4103, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1473, positive: 1461, positive conditional: 0, positive unconditional: 1461, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1473, positive: 1461, positive conditional: 0, positive unconditional: 1461, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4163, positive: 2642, positive conditional: 0, positive unconditional: 2642, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 1473, unknown conditional: 0, unknown unconditional: 1473] , Statistics on independence cache: Total cache size (in pairs): 288, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: 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, 173 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 8 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3618occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-11-02 21:06:49,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6ff5b99-93e6-4cae-b4d5-78229296ce59/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE