./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_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_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/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_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/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_5658cfea-9c3f-48ea-9bc1-d560836f251e/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 7ed03bf56a68b0ba240fc33c794b8871860875fa75320178f23c03b98fa54cab --- 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 11:27:31,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:27:31,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:27:31,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:27:31,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:27:31,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:27:31,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:27:31,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:27:31,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:27:31,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:27:31,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:27:31,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:27:31,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:27:31,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:27:31,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:27:31,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:27:31,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:27:31,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:27:31,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:27:31,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:27:31,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:27:31,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:27:31,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:27:31,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:27:31,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:27:31,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:27:31,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:27:31,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:27:31,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:27:31,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:27:31,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:27:31,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:27:31,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:27:31,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:27:31,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:27:31,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:27:31,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:27:31,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:27:31,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:27:31,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:27:31,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:27:31,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:27:31,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:27:31,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:27:31,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:27:31,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:27:31,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:27:31,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:27:31,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:27:31,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:27:31,353 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:27:31,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:27:31,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:27:31,355 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:27:31,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:27:31,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:27:31,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:27:31,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:27:31,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:27:31,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:27:31,356 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:27:31,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:27:31,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:27:31,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:27:31,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:27:31,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:27:31,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:27:31,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:27:31,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:31,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:27:31,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:27:31,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:27:31,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:27:31,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:27:31,360 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:27:31,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:27:31,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:27:31,360 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_5658cfea-9c3f-48ea-9bc1-d560836f251e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ed03bf56a68b0ba240fc33c794b8871860875fa75320178f23c03b98fa54cab [2022-11-16 11:27:31,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:27:31,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:27:31,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:27:31,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:27:31,750 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:27:31,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i [2022-11-16 11:27:31,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/data/a01c816a9/092bbc5b65f84326944802a341f332ec/FLAG9454739da [2022-11-16 11:27:32,391 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:27:32,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i [2022-11-16 11:27:32,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/data/a01c816a9/092bbc5b65f84326944802a341f332ec/FLAG9454739da [2022-11-16 11:27:32,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/data/a01c816a9/092bbc5b65f84326944802a341f332ec [2022-11-16 11:27:32,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:27:32,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:27:32,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:32,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:27:32,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:27:32,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b21b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32, skipping insertion in model container [2022-11-16 11:27:32,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:27:32,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:27:33,041 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_5658cfea-9c3f-48ea-9bc1-d560836f251e/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i[994,1007] [2022-11-16 11:27:33,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:33,387 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:27:33,403 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_5658cfea-9c3f-48ea-9bc1-d560836f251e/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i[994,1007] [2022-11-16 11:27:33,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:33,525 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:27:33,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33 WrapperNode [2022-11-16 11:27:33,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:33,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:33,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:27:33,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:27:33,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,580 INFO L138 Inliner]: procedures = 176, calls = 86, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 166 [2022-11-16 11:27:33,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:33,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:27:33,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:27:33,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:27:33,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:27:33,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:27:33,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:27:33,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:27:33,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (1/1) ... [2022-11-16 11:27:33,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:33,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:33,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:27:33,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:27:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:27:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:27:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:27:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:27:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:27:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:27:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:27:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:27:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:27:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:27:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:27:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:27:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:27:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:27:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:27:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:27:33,757 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 11:27:34,016 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:27:34,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:27:34,821 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:27:35,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:27:35,323 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:27:35,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:35 BoogieIcfgContainer [2022-11-16 11:27:35,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:27:35,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:27:35,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:27:35,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:27:35,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:27:32" (1/3) ... [2022-11-16 11:27:35,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592ee738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:35, skipping insertion in model container [2022-11-16 11:27:35,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:33" (2/3) ... [2022-11-16 11:27:35,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592ee738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:35, skipping insertion in model container [2022-11-16 11:27:35,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:35" (3/3) ... [2022-11-16 11:27:35,338 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.opt.i [2022-11-16 11:27:35,347 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:27:35,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:27:35,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:27:35,360 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:27:35,481 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:27:35,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 136 transitions, 287 flow [2022-11-16 11:27:35,623 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-16 11:27:35,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:35,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-16 11:27:35,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 136 transitions, 287 flow [2022-11-16 11:27:35,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 133 transitions, 275 flow [2022-11-16 11:27:35,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:27:35,671 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;@66be166b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:27:35,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-16 11:27:35,704 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-11-16 11:27:35,704 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:35,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,705 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] [2022-11-16 11:27:35,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:27:35,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1906836037, now seen corresponding path program 1 times [2022-11-16 11:27:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869540426] [2022-11-16 11:27:35,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:36,219 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 11:27:36,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:36,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869540426] [2022-11-16 11:27:36,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869540426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:36,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:36,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689241632] [2022-11-16 11:27:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:36,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:36,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:36,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:36,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-16 11:27:36,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 133 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 11:27:36,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:36,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-16 11:27:36,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:37,141 INFO L130 PetriNetUnfolder]: 581/2563 cut-off events. [2022-11-16 11:27:37,142 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-16 11:27:37,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3528 conditions, 2563 events. 581/2563 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 23171 event pairs, 393 based on Foata normal form. 134/2325 useless extension candidates. Maximal degree in co-relation 3458. Up to 798 conditions per place. [2022-11-16 11:27:37,169 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 28 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2022-11-16 11:27:37,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 142 transitions, 363 flow [2022-11-16 11:27:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:37,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2022-11-16 11:27:37,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9338235294117647 [2022-11-16 11:27:37,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2022-11-16 11:27:37,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2022-11-16 11:27:37,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:37,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2022-11-16 11:27:37,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 11:27:37,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 11:27:37,232 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 11:27:37,234 INFO L175 Difference]: Start difference. First operand has 141 places, 133 transitions, 275 flow. Second operand 3 states and 381 transitions. [2022-11-16 11:27:37,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 142 transitions, 363 flow [2022-11-16 11:27:37,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 358 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:27:37,242 INFO L231 Difference]: Finished difference. Result has 140 places, 133 transitions, 302 flow [2022-11-16 11:27:37,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=140, PETRI_TRANSITIONS=133} [2022-11-16 11:27:37,249 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2022-11-16 11:27:37,249 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 133 transitions, 302 flow [2022-11-16 11:27:37,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 11:27:37,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:37,250 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] [2022-11-16 11:27:37,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:27:37,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:27:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash 670048737, now seen corresponding path program 1 times [2022-11-16 11:27:37,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:37,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10827875] [2022-11-16 11:27:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:37,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:37,468 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 11:27:37,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:37,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10827875] [2022-11-16 11:27:37,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10827875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:37,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:37,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:37,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869480943] [2022-11-16 11:27:37,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:37,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:37,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:37,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:37,473 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-16 11:27:37,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 133 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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 11:27:37,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:37,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-16 11:27:37,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:38,036 INFO L130 PetriNetUnfolder]: 415/1205 cut-off events. [2022-11-16 11:27:38,037 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-16 11:27:38,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1205 events. 415/1205 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8363 event pairs, 86 based on Foata normal form. 0/1070 useless extension candidates. Maximal degree in co-relation 2186. Up to 384 conditions per place. [2022-11-16 11:27:38,049 INFO L137 encePairwiseOnDemand]: 126/136 looper letters, 33 selfloop transitions, 10 changer transitions 3/156 dead transitions. [2022-11-16 11:27:38,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 156 transitions, 458 flow [2022-11-16 11:27:38,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:27:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:27:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 501 transitions. [2022-11-16 11:27:38,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9209558823529411 [2022-11-16 11:27:38,071 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 501 transitions. [2022-11-16 11:27:38,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 501 transitions. [2022-11-16 11:27:38,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:38,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 501 transitions. [2022-11-16 11:27:38,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.25) internal successors, (501), 4 states have internal predecessors, (501), 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 11:27:38,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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 11:27:38,079 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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 11:27:38,079 INFO L175 Difference]: Start difference. First operand has 140 places, 133 transitions, 302 flow. Second operand 4 states and 501 transitions. [2022-11-16 11:27:38,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 156 transitions, 458 flow [2022-11-16 11:27:38,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 156 transitions, 454 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:38,089 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 358 flow [2022-11-16 11:27:38,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-11-16 11:27:38,091 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places. [2022-11-16 11:27:38,092 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 358 flow [2022-11-16 11:27:38,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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 11:27:38,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:38,093 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] [2022-11-16 11:27:38,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:27:38,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:27:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2017077798, now seen corresponding path program 1 times [2022-11-16 11:27:38,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:38,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507652260] [2022-11-16 11:27:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:38,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:38,374 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 11:27:38,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:38,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507652260] [2022-11-16 11:27:38,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507652260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:38,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:38,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:38,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806420463] [2022-11-16 11:27:38,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:38,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:38,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:38,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:38,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:38,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-16 11:27:38,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 358 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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 11:27:38,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:38,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-16 11:27:38,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:38,774 INFO L130 PetriNetUnfolder]: 277/937 cut-off events. [2022-11-16 11:27:38,774 INFO L131 PetriNetUnfolder]: For 449/449 co-relation queries the response was YES. [2022-11-16 11:27:38,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 937 events. 277/937 cut-off events. For 449/449 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5951 event pairs, 74 based on Foata normal form. 70/978 useless extension candidates. Maximal degree in co-relation 1676. Up to 313 conditions per place. [2022-11-16 11:27:38,783 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 25 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2022-11-16 11:27:38,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 396 flow [2022-11-16 11:27:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:27:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:27:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2022-11-16 11:27:38,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2022-11-16 11:27:38,786 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2022-11-16 11:27:38,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2022-11-16 11:27:38,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:38,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2022-11-16 11:27:38,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 11:27:38,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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 11:27:38,790 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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 11:27:38,791 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 358 flow. Second operand 4 states and 484 transitions. [2022-11-16 11:27:38,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 396 flow [2022-11-16 11:27:38,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 139 transitions, 378 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-16 11:27:38,804 INFO L231 Difference]: Finished difference. Result has 141 places, 130 transitions, 306 flow [2022-11-16 11:27:38,805 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2022-11-16 11:27:38,807 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 0 predicate places. [2022-11-16 11:27:38,808 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 306 flow [2022-11-16 11:27:38,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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 11:27:38,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:38,809 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] [2022-11-16 11:27:38,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:27:38,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:27:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1809698175, now seen corresponding path program 1 times [2022-11-16 11:27:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:38,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675701205] [2022-11-16 11:27:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:39,176 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 11:27:39,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:39,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675701205] [2022-11-16 11:27:39,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675701205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:39,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:39,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:27:39,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938988930] [2022-11-16 11:27:39,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:39,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:27:39,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:39,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:27:39,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:27:39,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-11-16 11:27:39,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:39,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:39,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-11-16 11:27:39,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:39,544 INFO L130 PetriNetUnfolder]: 268/916 cut-off events. [2022-11-16 11:27:39,544 INFO L131 PetriNetUnfolder]: For 345/345 co-relation queries the response was YES. [2022-11-16 11:27:39,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635 conditions, 916 events. 268/916 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5722 event pairs, 74 based on Foata normal form. 12/899 useless extension candidates. Maximal degree in co-relation 1563. Up to 196 conditions per place. [2022-11-16 11:27:39,549 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-11-16 11:27:39,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 144 transitions, 396 flow [2022-11-16 11:27:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2022-11-16 11:27:39,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8852941176470588 [2022-11-16 11:27:39,552 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2022-11-16 11:27:39,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2022-11-16 11:27:39,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:39,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2022-11-16 11:27:39,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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 11:27:39,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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 11:27:39,557 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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 11:27:39,557 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 306 flow. Second operand 5 states and 602 transitions. [2022-11-16 11:27:39,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 144 transitions, 396 flow [2022-11-16 11:27:39,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 144 transitions, 381 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:27:39,560 INFO L231 Difference]: Finished difference. Result has 138 places, 0 transitions, 0 flow [2022-11-16 11:27:39,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=138, PETRI_TRANSITIONS=0} [2022-11-16 11:27:39,562 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, -3 predicate places. [2022-11-16 11:27:39,562 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 0 transitions, 0 flow [2022-11-16 11:27:39,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:39,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-16 11:27:39,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-16 11:27:39,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-16 11:27:39,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-16 11:27:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-16 11:27:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-16 11:27:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-16 11:27:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-16 11:27:39,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-16 11:27:39,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-16 11:27:39,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-16 11:27:39,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-16 11:27:39,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-16 11:27:39,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-16 11:27:39,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-16 11:27:39,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:27:39,570 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:27:39,575 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:27:39,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:27:39,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:27:39 BasicIcfg [2022-11-16 11:27:39,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:27:39,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:27:39,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:27:39,582 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:27:39,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:35" (3/4) ... [2022-11-16 11:27:39,586 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:27:39,591 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 11:27:39,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 11:27:39,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 11:27:39,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2022-11-16 11:27:39,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-16 11:27:39,599 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:27:39,599 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:27:39,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:27:39,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:27:39,646 INFO L158 Benchmark]: Toolchain (without parser) took 6959.20ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 87.0MB in the beginning and 84.5MB in the end (delta: 2.5MB). Peak memory consumption was 100.0MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,646 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:39,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 835.19ms. Allocated memory is still 125.8MB. Free memory was 86.8MB in the beginning and 85.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.57ms. Allocated memory is still 125.8MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,647 INFO L158 Benchmark]: Boogie Preprocessor took 41.83ms. Allocated memory is still 125.8MB. Free memory was 82.6MB in the beginning and 80.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,648 INFO L158 Benchmark]: RCFGBuilder took 1701.51ms. Allocated memory is still 125.8MB. Free memory was 80.1MB in the beginning and 88.8MB in the end (delta: -8.7MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,648 INFO L158 Benchmark]: TraceAbstraction took 4251.42ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 88.8MB in the beginning and 88.7MB in the end (delta: 106.1kB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,649 INFO L158 Benchmark]: Witness Printer took 63.42ms. Allocated memory is still 224.4MB. Free memory was 88.7MB in the beginning and 84.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:27:39,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 835.19ms. Allocated memory is still 125.8MB. Free memory was 86.8MB in the beginning and 85.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.57ms. Allocated memory is still 125.8MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.83ms. Allocated memory is still 125.8MB. Free memory was 82.6MB in the beginning and 80.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1701.51ms. Allocated memory is still 125.8MB. Free memory was 80.1MB in the beginning and 88.8MB in the end (delta: -8.7MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4251.42ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 88.8MB in the beginning and 88.7MB in the end (delta: 106.1kB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. * Witness Printer took 63.42ms. Allocated memory is still 224.4MB. Free memory was 88.7MB in the beginning and 84.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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 7 procedures, 167 locations, 15 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: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.9s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:27:39,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5658cfea-9c3f-48ea-9bc1-d560836f251e/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