./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8 --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- 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-2329fc7 [2022-12-13 13:58:44,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:58:44,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:58:44,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:58:44,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:58:44,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:58:44,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:58:44,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:58:44,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:58:44,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:58:44,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:58:44,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:58:44,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:58:44,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:58:44,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:58:44,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:58:44,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:58:44,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:58:44,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:58:44,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:58:44,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:58:44,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:58:44,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:58:44,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:58:44,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:58:44,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:58:44,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:58:44,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:58:44,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:58:44,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:58:44,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:58:44,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:58:44,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:58:44,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:58:44,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:58:44,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:58:44,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:58:44,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:58:44,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:58:44,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:58:44,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:58:44,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 13:58:44,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:58:44,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:58:44,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:58:44,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:58:44,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:58:44,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:58:44,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:58:44,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:58:44,498 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:58:44,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:58:44,498 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:58:44,498 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:58:44,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:58:44,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:58:44,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:58:44,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:58:44,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:44,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:58:44,500 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:58:44,501 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-12-13 13:58:44,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:58:44,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:58:44,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:58:44,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:58:44,700 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:58:44,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-13 13:58:47,326 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:58:47,536 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:58:47,536 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-13 13:58:47,550 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/data/0dc48e3ce/88ad44cf28ae46bbb6fd11070d227c34/FLAG92736809a [2022-12-13 13:58:47,563 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/data/0dc48e3ce/88ad44cf28ae46bbb6fd11070d227c34 [2022-12-13 13:58:47,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:58:47,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:58:47,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:47,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:58:47,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:58:47,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:47" (1/1) ... [2022-12-13 13:58:47,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19193abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:47, skipping insertion in model container [2022-12-13 13:58:47,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:47" (1/1) ... [2022-12-13 13:58:47,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:58:47,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:58:47,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:48,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:58:48,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:48,125 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:58:48,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48 WrapperNode [2022-12-13 13:58:48,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:48,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:48,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:58:48,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:58:48,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,159 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 13:58:48,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:48,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:58:48,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:58:48,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:58:48,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:58:48,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:58:48,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:58:48,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:58:48,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (1/1) ... [2022-12-13 13:58:48,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:48,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:58:48,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:58:48,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:58:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:58:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:58:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:58:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:58:48,225 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:58:48,321 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:58:48,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:58:48,448 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:58:48,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:58:48,456 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:58:48,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:48 BoogieIcfgContainer [2022-12-13 13:58:48,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:58:48,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:58:48,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:58:48,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:58:48,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:58:47" (1/3) ... [2022-12-13 13:58:48,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25070615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:48, skipping insertion in model container [2022-12-13 13:58:48,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:48" (2/3) ... [2022-12-13 13:58:48,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25070615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:48, skipping insertion in model container [2022-12-13 13:58:48,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:48" (3/3) ... [2022-12-13 13:58:48,466 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-12-13 13:58:48,474 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:58:48,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:58:48,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 13:58:48,483 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:58:48,526 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:58:48,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 151 flow [2022-12-13 13:58:48,579 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2022-12-13 13:58:48,580 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:48,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 0/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 13:58:48,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 151 flow [2022-12-13 13:58:48,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 72 transitions, 147 flow [2022-12-13 13:58:48,590 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:58:48,600 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 72 transitions, 147 flow [2022-12-13 13:58:48,602 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 72 transitions, 147 flow [2022-12-13 13:58:48,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 147 flow [2022-12-13 13:58:48,624 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2022-12-13 13:58:48,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:48,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 0/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 13:58:48,626 INFO L119 LiptonReduction]: Number of co-enabled transitions 1092 [2022-12-13 13:58:50,378 INFO L134 LiptonReduction]: Checked pairs total: 1510 [2022-12-13 13:58:50,378 INFO L136 LiptonReduction]: Total number of compositions: 66 [2022-12-13 13:58:50,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:58:50,394 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;@28eaf04f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:58:50,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 13:58:50,396 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-13 13:58:50,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:50,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:50,397 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:58:50,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:50,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:50,400 INFO L85 PathProgramCache]: Analyzing trace with hash 8155732, now seen corresponding path program 1 times [2022-12-13 13:58:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328635143] [2022-12-13 13:58:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:50,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:50,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:50,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:50,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328635143] [2022-12-13 13:58:50,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328635143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:50,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:50,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:58:50,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012167881] [2022-12-13 13:58:50,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:50,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:50,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:50,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:50,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2022-12-13 13:58:50,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:50,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:50,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2022-12-13 13:58:50,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:51,024 INFO L130 PetriNetUnfolder]: 31/76 cut-off events. [2022-12-13 13:58:51,025 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:51,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 76 events. 31/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 243 event pairs, 3 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 148. Up to 44 conditions per place. [2022-12-13 13:58:51,027 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 19 selfloop transitions, 5 changer transitions 4/28 dead transitions. [2022-12-13 13:58:51,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 28 transitions, 115 flow [2022-12-13 13:58:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2022-12-13 13:58:51,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.512589928057554 [2022-12-13 13:58:51,041 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 285 transitions. [2022-12-13 13:58:51,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 285 transitions. [2022-12-13 13:58:51,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:51,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 285 transitions. [2022-12-13 13:58:51,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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) [2022-12-13 13:58:51,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,054 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,056 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 4 states and 285 transitions. [2022-12-13 13:58:51,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 28 transitions, 115 flow [2022-12-13 13:58:51,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:51,060 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 54 flow [2022-12-13 13:58:51,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2022-12-13 13:58:51,065 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2022-12-13 13:58:51,065 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 54 flow [2022-12-13 13:58:51,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:51,066 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:58:51,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:58:51,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:51,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:51,067 INFO L85 PathProgramCache]: Analyzing trace with hash 8155785, now seen corresponding path program 1 times [2022-12-13 13:58:51,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:51,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974508198] [2022-12-13 13:58:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:51,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:51,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:51,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974508198] [2022-12-13 13:58:51,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974508198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:51,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:51,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:58:51,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754345698] [2022-12-13 13:58:51,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:51,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:51,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:51,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:51,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:51,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2022-12-13 13:58:51,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:51,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2022-12-13 13:58:51,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:51,341 INFO L130 PetriNetUnfolder]: 23/60 cut-off events. [2022-12-13 13:58:51,341 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 13:58:51,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 60 events. 23/60 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 191 event pairs, 2 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 144. Up to 35 conditions per place. [2022-12-13 13:58:51,342 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 17 selfloop transitions, 6 changer transitions 2/25 dead transitions. [2022-12-13 13:58:51,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 129 flow [2022-12-13 13:58:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2022-12-13 13:58:51,345 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5053956834532374 [2022-12-13 13:58:51,346 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 281 transitions. [2022-12-13 13:58:51,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 281 transitions. [2022-12-13 13:58:51,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:51,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 281 transitions. [2022-12-13 13:58:51,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2022-12-13 13:58:51,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,350 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,350 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 54 flow. Second operand 4 states and 281 transitions. [2022-12-13 13:58:51,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 129 flow [2022-12-13 13:58:51,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:51,351 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 79 flow [2022-12-13 13:58:51,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2022-12-13 13:58:51,352 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 8 predicate places. [2022-12-13 13:58:51,352 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 79 flow [2022-12-13 13:58:51,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:51,352 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:58:51,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:58:51,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:51,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:51,353 INFO L85 PathProgramCache]: Analyzing trace with hash 8155802, now seen corresponding path program 1 times [2022-12-13 13:58:51,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:51,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591767019] [2022-12-13 13:58:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:51,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:51,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:51,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591767019] [2022-12-13 13:58:51,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591767019] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:51,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:51,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:58:51,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039371326] [2022-12-13 13:58:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:51,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:51,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:51,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2022-12-13 13:58:51,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:51,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2022-12-13 13:58:51,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:51,574 INFO L130 PetriNetUnfolder]: 19/52 cut-off events. [2022-12-13 13:58:51,574 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 13:58:51,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 52 events. 19/52 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 145 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 143. Up to 34 conditions per place. [2022-12-13 13:58:51,576 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 16 selfloop transitions, 6 changer transitions 2/24 dead transitions. [2022-12-13 13:58:51,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 24 transitions, 143 flow [2022-12-13 13:58:51,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:51,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2022-12-13 13:58:51,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5035971223021583 [2022-12-13 13:58:51,578 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2022-12-13 13:58:51,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2022-12-13 13:58:51,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:51,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2022-12-13 13:58:51,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 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) [2022-12-13 13:58:51,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,583 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,584 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 79 flow. Second operand 4 states and 280 transitions. [2022-12-13 13:58:51,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 24 transitions, 143 flow [2022-12-13 13:58:51,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:51,585 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 92 flow [2022-12-13 13:58:51,586 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2022-12-13 13:58:51,586 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 11 predicate places. [2022-12-13 13:58:51,587 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 92 flow [2022-12-13 13:58:51,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,587 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:51,587 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:58:51,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:58:51,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:51,588 INFO L85 PathProgramCache]: Analyzing trace with hash 8155735, now seen corresponding path program 1 times [2022-12-13 13:58:51,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:51,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777229658] [2022-12-13 13:58:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:51,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:51,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:51,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:51,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777229658] [2022-12-13 13:58:51,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777229658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:51,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:51,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:58:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134370562] [2022-12-13 13:58:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:51,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:51,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:51,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:51,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2022-12-13 13:58:51,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:51,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2022-12-13 13:58:51,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:51,852 INFO L130 PetriNetUnfolder]: 16/46 cut-off events. [2022-12-13 13:58:51,852 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-13 13:58:51,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 46 events. 16/46 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 125 event pairs, 4 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 136. Up to 33 conditions per place. [2022-12-13 13:58:51,853 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 14 selfloop transitions, 6 changer transitions 2/22 dead transitions. [2022-12-13 13:58:51,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 151 flow [2022-12-13 13:58:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:51,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2022-12-13 13:58:51,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 13:58:51,855 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 278 transitions. [2022-12-13 13:58:51,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 278 transitions. [2022-12-13 13:58:51,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:51,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 278 transitions. [2022-12-13 13:58:51,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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) [2022-12-13 13:58:51,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,858 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:51,858 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 92 flow. Second operand 4 states and 278 transitions. [2022-12-13 13:58:51,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 151 flow [2022-12-13 13:58:51,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 137 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:58:51,859 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 98 flow [2022-12-13 13:58:51,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2022-12-13 13:58:51,860 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 12 predicate places. [2022-12-13 13:58:51,860 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 98 flow [2022-12-13 13:58:51,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2022-12-13 13:58:51,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:51,861 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:51,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:58:51,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:51,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1843326184, now seen corresponding path program 1 times [2022-12-13 13:58:51,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:51,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339584471] [2022-12-13 13:58:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:51,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:52,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339584471] [2022-12-13 13:58:52,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339584471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:52,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:52,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:52,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536868413] [2022-12-13 13:58:52,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:52,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:58:52,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:52,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:58:52,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:58:52,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 139 [2022-12-13 13:58:52,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 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) [2022-12-13 13:58:52,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:52,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 139 [2022-12-13 13:58:52,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:52,341 INFO L130 PetriNetUnfolder]: 14/44 cut-off events. [2022-12-13 13:58:52,341 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2022-12-13 13:58:52,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 44 events. 14/44 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 118 event pairs, 4 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 133. Up to 33 conditions per place. [2022-12-13 13:58:52,342 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 13 selfloop transitions, 6 changer transitions 2/21 dead transitions. [2022-12-13 13:58:52,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 21 transitions, 146 flow [2022-12-13 13:58:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2022-12-13 13:58:52,343 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4550359712230216 [2022-12-13 13:58:52,343 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 253 transitions. [2022-12-13 13:58:52,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 253 transitions. [2022-12-13 13:58:52,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:52,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 253 transitions. [2022-12-13 13:58:52,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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) [2022-12-13 13:58:52,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:52,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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) [2022-12-13 13:58:52,346 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 98 flow. Second operand 4 states and 253 transitions. [2022-12-13 13:58:52,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 21 transitions, 146 flow [2022-12-13 13:58:52,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:58:52,347 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 104 flow [2022-12-13 13:58:52,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2022-12-13 13:58:52,348 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2022-12-13 13:58:52,348 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 104 flow [2022-12-13 13:58:52,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 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) [2022-12-13 13:58:52,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:52,349 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:52,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:58:52,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:52,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:52,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1845373114, now seen corresponding path program 2 times [2022-12-13 13:58:52,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:52,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266498967] [2022-12-13 13:58:52,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:52,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:52,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:52,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266498967] [2022-12-13 13:58:52,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266498967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:52,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:52,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:52,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632617323] [2022-12-13 13:58:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:52,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:58:52,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:58:52,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:58:52,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2022-12-13 13:58:52,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-12-13 13:58:52,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:52,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2022-12-13 13:58:52,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:52,573 INFO L130 PetriNetUnfolder]: 3/29 cut-off events. [2022-12-13 13:58:52,573 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-12-13 13:58:52,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 29 events. 3/29 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 85 event pairs, 0 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 80. Up to 19 conditions per place. [2022-12-13 13:58:52,574 INFO L137 encePairwiseOnDemand]: 135/139 looper letters, 15 selfloop transitions, 4 changer transitions 1/20 dead transitions. [2022-12-13 13:58:52,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 20 transitions, 134 flow [2022-12-13 13:58:52,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:58:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:58:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2022-12-13 13:58:52,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5059952038369304 [2022-12-13 13:58:52,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 211 transitions. [2022-12-13 13:58:52,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 211 transitions. [2022-12-13 13:58:52,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:52,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 211 transitions. [2022-12-13 13:58:52,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,578 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 104 flow. Second operand 3 states and 211 transitions. [2022-12-13 13:58:52,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 20 transitions, 134 flow [2022-12-13 13:58:52,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 126 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:58:52,579 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 94 flow [2022-12-13 13:58:52,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2022-12-13 13:58:52,580 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2022-12-13 13:58:52,580 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 94 flow [2022-12-13 13:58:52,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-12-13 13:58:52,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:52,580 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:52,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:58:52,581 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:52,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1843957814, now seen corresponding path program 1 times [2022-12-13 13:58:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:52,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068539695] [2022-12-13 13:58:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:52,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:52,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068539695] [2022-12-13 13:58:52,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068539695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:52,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:52,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:52,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872509913] [2022-12-13 13:58:52,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:52,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:58:52,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:58:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:58:52,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 139 [2022-12-13 13:58:52,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 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) [2022-12-13 13:58:52,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:52,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 139 [2022-12-13 13:58:52,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:52,804 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 13:58:52,804 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-13 13:58:52,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 18 events. 0/18 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 27 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-12-13 13:58:52,804 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 9 selfloop transitions, 7 changer transitions 0/16 dead transitions. [2022-12-13 13:58:52,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 16 transitions, 121 flow [2022-12-13 13:58:52,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:58:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:58:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 335 transitions. [2022-12-13 13:58:52,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48201438848920863 [2022-12-13 13:58:52,805 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 335 transitions. [2022-12-13 13:58:52,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 335 transitions. [2022-12-13 13:58:52,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:52,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 335 transitions. [2022-12-13 13:58:52,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 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) [2022-12-13 13:58:52,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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) [2022-12-13 13:58:52,807 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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) [2022-12-13 13:58:52,807 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 94 flow. Second operand 5 states and 335 transitions. [2022-12-13 13:58:52,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 16 transitions, 121 flow [2022-12-13 13:58:52,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 16 transitions, 113 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:52,808 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 95 flow [2022-12-13 13:58:52,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2022-12-13 13:58:52,809 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 15 predicate places. [2022-12-13 13:58:52,809 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 95 flow [2022-12-13 13:58:52,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 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) [2022-12-13 13:58:52,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:52,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:52,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:58:52,809 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:52,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1372717818, now seen corresponding path program 1 times [2022-12-13 13:58:52,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:52,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509991436] [2022-12-13 13:58:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:52,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:53,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:53,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509991436] [2022-12-13 13:58:53,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509991436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:53,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:53,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:58:53,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474922350] [2022-12-13 13:58:53,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:53,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:58:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:53,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:58:53,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:58:53,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 139 [2022-12-13 13:58:53,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 95 flow. Second operand has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2022-12-13 13:58:53,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:53,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 139 [2022-12-13 13:58:53,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:53,225 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-13 13:58:53,225 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-13 13:58:53,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 17 events. 0/17 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-12-13 13:58:53,225 INFO L137 encePairwiseOnDemand]: 132/139 looper letters, 8 selfloop transitions, 7 changer transitions 2/17 dead transitions. [2022-12-13 13:58:53,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 17 transitions, 129 flow [2022-12-13 13:58:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:58:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 13:58:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 482 transitions. [2022-12-13 13:58:53,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43345323741007197 [2022-12-13 13:58:53,227 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 482 transitions. [2022-12-13 13:58:53,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 482 transitions. [2022-12-13 13:58:53,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:53,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 482 transitions. [2022-12-13 13:58:53,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 60.25) internal successors, (482), 8 states have internal predecessors, (482), 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) [2022-12-13 13:58:53,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 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) [2022-12-13 13:58:53,229 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 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) [2022-12-13 13:58:53,230 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 95 flow. Second operand 8 states and 482 transitions. [2022-12-13 13:58:53,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 17 transitions, 129 flow [2022-12-13 13:58:53,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 17 transitions, 109 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 13:58:53,231 INFO L231 Difference]: Finished difference. Result has 33 places, 15 transitions, 85 flow [2022-12-13 13:58:53,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=85, PETRI_PLACES=33, PETRI_TRANSITIONS=15} [2022-12-13 13:58:53,231 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 15 predicate places. [2022-12-13 13:58:53,231 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 85 flow [2022-12-13 13:58:53,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2022-12-13 13:58:53,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:53,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:53,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:58:53,232 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1372717835, now seen corresponding path program 1 times [2022-12-13 13:58:53,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:53,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563341295] [2022-12-13 13:58:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:53,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:53,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:53,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563341295] [2022-12-13 13:58:53,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563341295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:53,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:53,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:58:53,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794359814] [2022-12-13 13:58:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:53,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:58:53,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:58:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:58:53,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 139 [2022-12-13 13:58:53,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 85 flow. Second operand has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 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) [2022-12-13 13:58:53,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:53,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 139 [2022-12-13 13:58:53,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:53,581 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-13 13:58:53,581 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-12-13 13:58:53,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 15 events. 0/15 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 13:58:53,581 INFO L137 encePairwiseOnDemand]: 131/139 looper letters, 4 selfloop transitions, 5 changer transitions 6/15 dead transitions. [2022-12-13 13:58:53,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 15 transitions, 113 flow [2022-12-13 13:58:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:58:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:58:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 529 transitions. [2022-12-13 13:58:53,583 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4228617106314948 [2022-12-13 13:58:53,584 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 529 transitions. [2022-12-13 13:58:53,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 529 transitions. [2022-12-13 13:58:53,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:53,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 529 transitions. [2022-12-13 13:58:53,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 58.77777777777778) internal successors, (529), 9 states have internal predecessors, (529), 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) [2022-12-13 13:58:53,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-12-13 13:58:53,588 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-12-13 13:58:53,588 INFO L175 Difference]: Start difference. First operand has 33 places, 15 transitions, 85 flow. Second operand 9 states and 529 transitions. [2022-12-13 13:58:53,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 15 transitions, 113 flow [2022-12-13 13:58:53,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 15 transitions, 92 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-12-13 13:58:53,589 INFO L231 Difference]: Finished difference. Result has 32 places, 9 transitions, 46 flow [2022-12-13 13:58:53,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=46, PETRI_PLACES=32, PETRI_TRANSITIONS=9} [2022-12-13 13:58:53,590 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 14 predicate places. [2022-12-13 13:58:53,590 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 9 transitions, 46 flow [2022-12-13 13:58:53,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 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) [2022-12-13 13:58:53,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:53,591 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:53,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:58:53,591 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:53,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1328117875, now seen corresponding path program 1 times [2022-12-13 13:58:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:53,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210776086] [2022-12-13 13:58:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:53,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:53,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:53,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210776086] [2022-12-13 13:58:53,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210776086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:53,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:53,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:58:53,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088493696] [2022-12-13 13:58:53,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:53,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:58:53,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:53,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:58:53,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:58:53,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 139 [2022-12-13 13:58:53,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 9 transitions, 46 flow. Second operand has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2022-12-13 13:58:53,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:53,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 139 [2022-12-13 13:58:53,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:53,994 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 13:58:53,994 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 13:58:53,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 8 events. 0/8 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 13:58:53,995 INFO L137 encePairwiseOnDemand]: 133/139 looper letters, 3 selfloop transitions, 5 changer transitions 0/8 dead transitions. [2022-12-13 13:58:53,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 8 transitions, 56 flow [2022-12-13 13:58:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:58:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:58:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 415 transitions. [2022-12-13 13:58:53,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4265159301130524 [2022-12-13 13:58:53,996 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 415 transitions. [2022-12-13 13:58:53,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 415 transitions. [2022-12-13 13:58:53,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:53,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 415 transitions. [2022-12-13 13:58:53,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.285714285714285) internal successors, (415), 7 states have internal predecessors, (415), 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) [2022-12-13 13:58:53,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 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) [2022-12-13 13:58:54,000 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 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) [2022-12-13 13:58:54,000 INFO L175 Difference]: Start difference. First operand has 32 places, 9 transitions, 46 flow. Second operand 7 states and 415 transitions. [2022-12-13 13:58:54,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 8 transitions, 56 flow [2022-12-13 13:58:54,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 8 transitions, 39 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-12-13 13:58:54,001 INFO L231 Difference]: Finished difference. Result has 20 places, 8 transitions, 33 flow [2022-12-13 13:58:54,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=33, PETRI_PLACES=20, PETRI_TRANSITIONS=8} [2022-12-13 13:58:54,001 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2022-12-13 13:58:54,001 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 8 transitions, 33 flow [2022-12-13 13:58:54,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2022-12-13 13:58:54,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:54,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:54,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:58:54,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:58:54,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:54,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1328117878, now seen corresponding path program 1 times [2022-12-13 13:58:54,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:54,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704962665] [2022-12-13 13:58:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:54,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:54,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:54,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704962665] [2022-12-13 13:58:54,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704962665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:54,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:54,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:58:54,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761294864] [2022-12-13 13:58:54,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:54,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:58:54,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:54,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:58:54,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:58:54,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 139 [2022-12-13 13:58:54,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 8 transitions, 33 flow. Second operand has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 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) [2022-12-13 13:58:54,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:54,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 139 [2022-12-13 13:58:54,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:54,312 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-13 13:58:54,312 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:58:54,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 7 events. 0/7 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 13:58:54,312 INFO L137 encePairwiseOnDemand]: 133/139 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2022-12-13 13:58:54,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 7 transitions, 45 flow [2022-12-13 13:58:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:58:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:58:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 350 transitions. [2022-12-13 13:58:54,314 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4196642685851319 [2022-12-13 13:58:54,314 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 350 transitions. [2022-12-13 13:58:54,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 350 transitions. [2022-12-13 13:58:54,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:54,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 350 transitions. [2022-12-13 13:58:54,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 58.333333333333336) internal successors, (350), 6 states have internal predecessors, (350), 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) [2022-12-13 13:58:54,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-12-13 13:58:54,318 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-12-13 13:58:54,318 INFO L175 Difference]: Start difference. First operand has 20 places, 8 transitions, 33 flow. Second operand 6 states and 350 transitions. [2022-12-13 13:58:54,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 7 transitions, 45 flow [2022-12-13 13:58:54,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 7 transitions, 36 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 13:58:54,319 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2022-12-13 13:58:54,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2022-12-13 13:58:54,319 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2022-12-13 13:58:54,319 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2022-12-13 13:58:54,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 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) [2022-12-13 13:58:54,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-12-13 13:58:54,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-12-13 13:58:54,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-13 13:58:54,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-12-13 13:58:54,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-12-13 13:58:54,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-12-13 13:58:54,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-12-13 13:58:54,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:58:54,322 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:54,326 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:58:54,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:58:54,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:58:54 BasicIcfg [2022-12-13 13:58:54,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:58:54,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:58:54,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:58:54,329 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:58:54,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:48" (3/4) ... [2022-12-13 13:58:54,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:58:54,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 13:58:54,338 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 13:58:54,338 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:58:54,338 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:58:54,358 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:58:54,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:58:54,359 INFO L158 Benchmark]: Toolchain (without parser) took 6791.98ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 79.1MB in the beginning and 107.3MB in the end (delta: -28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,359 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:58:54,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.22ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 82.7MB in the end (delta: -3.7MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.51ms. Allocated memory is still 119.5MB. Free memory was 82.2MB in the beginning and 80.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,360 INFO L158 Benchmark]: Boogie Preprocessor took 16.33ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 78.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,360 INFO L158 Benchmark]: RCFGBuilder took 281.52ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 65.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,361 INFO L158 Benchmark]: TraceAbstraction took 5867.90ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 64.3MB in the beginning and 109.4MB in the end (delta: -45.1MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,361 INFO L158 Benchmark]: Witness Printer took 29.61ms. Allocated memory is still 174.1MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:58:54,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.22ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 82.7MB in the end (delta: -3.7MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.51ms. Allocated memory is still 119.5MB. Free memory was 82.2MB in the beginning and 80.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.33ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 78.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 281.52ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 65.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5867.90ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 64.3MB in the beginning and 109.4MB in the end (delta: -45.1MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 29.61ms. Allocated memory is still 174.1MB. Free memory was 109.4MB in the beginning and 107.3MB 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: 1.8s, 76 PlacesBefore, 18 PlacesAfterwards, 72 TransitionsBefore, 14 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 1510 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1149, independent: 1051, independent conditional: 0, independent unconditional: 1051, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 600, independent: 578, independent conditional: 0, independent unconditional: 578, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1149, independent: 473, independent conditional: 0, independent unconditional: 473, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 600, unknown conditional: 0, unknown unconditional: 600] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: 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 3 procedures, 97 locations, 7 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: 5.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 833 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 577 mSDsluCounter, 416 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 351 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1285 IncrementalHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 65 mSDtfsCounter, 1285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=5, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:58:54,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c914215-9e1b-4f9c-bbca-dee2438f7b6b/bin/uautomizer-uyxdKDjOR8/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