./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:30,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:30,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:03:30,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:30,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:30,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:30,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:30,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:30,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:30,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:30,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:30,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:30,786 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:30,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:30,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:30,788 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:30,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:30,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:30,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:30,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:30,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:30,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:30,794 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:03:30,795 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:30,795 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:30,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:30,797 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:30,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:30,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:30,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:30,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:30,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:30,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:30,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:30,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:30,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:30,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:30,803 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:30,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:30,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:30,805 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:30,806 INFO L153 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_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2023-11-19 08:03:31,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:31,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:31,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:31,180 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:31,181 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:31,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-19 08:03:34,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:34,909 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:34,910 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-19 08:03:34,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/data/6775865eb/890836f2314742ec9bc05fe2f8b289b3/FLAG6a187d96e [2023-11-19 08:03:34,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/data/6775865eb/890836f2314742ec9bc05fe2f8b289b3 [2023-11-19 08:03:34,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:34,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:34,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:34,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:34,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:34,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:34" (1/1) ... [2023-11-19 08:03:34,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c15bcfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:34, skipping insertion in model container [2023-11-19 08:03:34,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:34" (1/1) ... [2023-11-19 08:03:35,079 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:35,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:35,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:35,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:35,600 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:35,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35 WrapperNode [2023-11-19 08:03:35,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:35,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:35,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:35,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:35,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,654 INFO L138 Inliner]: procedures = 165, calls = 43, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 180 [2023-11-19 08:03:35,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:35,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:35,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:35,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:35,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:35,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:35,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:35,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:35,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:35,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:35,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:35,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:03:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 08:03:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 08:03:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:35,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:35,807 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:03:36,030 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:36,032 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:36,470 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:36,485 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:36,485 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:03:36,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:36 BoogieIcfgContainer [2023-11-19 08:03:36,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:36,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:36,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:36,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:36,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:34" (1/3) ... [2023-11-19 08:03:36,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d12c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:36, skipping insertion in model container [2023-11-19 08:03:36,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35" (2/3) ... [2023-11-19 08:03:36,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d12c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:36, skipping insertion in model container [2023-11-19 08:03:36,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:36" (3/3) ... [2023-11-19 08:03:36,503 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-19 08:03:36,513 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:03:36,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:36,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-19 08:03:36,526 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:03:36,637 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:03:36,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 240 transitions, 484 flow [2023-11-19 08:03:36,839 INFO L124 PetriNetUnfolderBase]: 15/243 cut-off events. [2023-11-19 08:03:36,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:36,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 243 events. 15/243 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 343 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 196. Up to 2 conditions per place. [2023-11-19 08:03:36,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 240 transitions, 484 flow [2023-11-19 08:03:36,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 238 transitions, 479 flow [2023-11-19 08:03:36,877 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:36,922 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 238 transitions, 479 flow [2023-11-19 08:03:36,925 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 238 transitions, 479 flow [2023-11-19 08:03:36,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 238 transitions, 479 flow [2023-11-19 08:03:37,063 INFO L124 PetriNetUnfolderBase]: 15/238 cut-off events. [2023-11-19 08:03:37,064 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:37,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 238 events. 15/238 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 196. Up to 2 conditions per place. [2023-11-19 08:03:37,081 INFO L119 LiptonReduction]: Number of co-enabled transitions 18150 [2023-11-19 08:03:48,409 INFO L134 LiptonReduction]: Checked pairs total: 28643 [2023-11-19 08:03:48,409 INFO L136 LiptonReduction]: Total number of compositions: 284 [2023-11-19 08:03:48,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:48,432 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=LoopHeads, 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;@3f2053bd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:48,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-11-19 08:03:48,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:03:48,437 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-19 08:03:48,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:48,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:48,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:03:48,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:48,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1391433742, now seen corresponding path program 1 times [2023-11-19 08:03:48,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:48,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451968978] [2023-11-19 08:03:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:48,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:48,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:48,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451968978] [2023-11-19 08:03:48,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451968978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:48,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:48,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:03:48,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449842260] [2023-11-19 08:03:48,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:48,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:03:48,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:48,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:03:48,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:03:48,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 524 [2023-11-19 08:03:48,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 45 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 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) [2023-11-19 08:03:48,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:48,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 524 [2023-11-19 08:03:48,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:48,851 INFO L124 PetriNetUnfolderBase]: 171/395 cut-off events. [2023-11-19 08:03:48,851 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:48,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 395 events. 171/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1666 event pairs, 160 based on Foata normal form. 22/315 useless extension candidates. Maximal degree in co-relation 750. Up to 360 conditions per place. [2023-11-19 08:03:48,860 INFO L140 encePairwiseOnDemand]: 513/524 looper letters, 29 selfloop transitions, 0 changer transitions 0/33 dead transitions. [2023-11-19 08:03:48,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 127 flow [2023-11-19 08:03:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:03:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:03:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 492 transitions. [2023-11-19 08:03:48,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46946564885496184 [2023-11-19 08:03:48,888 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 492 transitions. [2023-11-19 08:03:48,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 492 transitions. [2023-11-19 08:03:48,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:48,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 492 transitions. [2023-11-19 08:03:48,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 246.0) internal successors, (492), 2 states have internal predecessors, (492), 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) [2023-11-19 08:03:48,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 524.0) internal successors, (1572), 3 states have internal predecessors, (1572), 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) [2023-11-19 08:03:48,909 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 524.0) internal successors, (1572), 3 states have internal predecessors, (1572), 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) [2023-11-19 08:03:48,911 INFO L175 Difference]: Start difference. First operand has 44 places, 45 transitions, 93 flow. Second operand 2 states and 492 transitions. [2023-11-19 08:03:48,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 127 flow [2023-11-19 08:03:48,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:48,917 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 68 flow [2023-11-19 08:03:48,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2023-11-19 08:03:48,926 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -8 predicate places. [2023-11-19 08:03:48,927 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 68 flow [2023-11-19 08:03:48,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 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) [2023-11-19 08:03:48,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:48,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:03:48,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:48,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:48,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:48,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1391433703, now seen corresponding path program 1 times [2023-11-19 08:03:48,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:48,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753918531] [2023-11-19 08:03:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:48,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:49,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:49,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753918531] [2023-11-19 08:03:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753918531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:49,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:49,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:03:49,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595759016] [2023-11-19 08:03:49,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:49,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:49,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:49,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 524 [2023-11-19 08:03:49,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2023-11-19 08:03:49,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:49,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 524 [2023-11-19 08:03:49,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:49,307 INFO L124 PetriNetUnfolderBase]: 154/361 cut-off events. [2023-11-19 08:03:49,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:49,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 361 events. 154/361 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1466 event pairs, 128 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 688. Up to 291 conditions per place. [2023-11-19 08:03:49,311 INFO L140 encePairwiseOnDemand]: 521/524 looper letters, 29 selfloop transitions, 2 changer transitions 14/49 dead transitions. [2023-11-19 08:03:49,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 49 transitions, 190 flow [2023-11-19 08:03:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:49,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2023-11-19 08:03:49,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4529262086513995 [2023-11-19 08:03:49,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2023-11-19 08:03:49,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2023-11-19 08:03:49,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:49,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2023-11-19 08:03:49,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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) [2023-11-19 08:03:49,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:49,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:49,330 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 68 flow. Second operand 3 states and 712 transitions. [2023-11-19 08:03:49,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 49 transitions, 190 flow [2023-11-19 08:03:49,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:49,333 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 56 flow [2023-11-19 08:03:49,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2023-11-19 08:03:49,338 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -7 predicate places. [2023-11-19 08:03:49,339 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 56 flow [2023-11-19 08:03:49,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2023-11-19 08:03:49,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:49,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:49,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:03:49,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:49,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash -305120494, now seen corresponding path program 1 times [2023-11-19 08:03:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:49,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26433898] [2023-11-19 08:03:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:49,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26433898] [2023-11-19 08:03:49,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26433898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:49,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:49,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582526972] [2023-11-19 08:03:49,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:49,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:49,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:49,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:49,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:49,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 524 [2023-11-19 08:03:49,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2023-11-19 08:03:49,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:49,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 524 [2023-11-19 08:03:49,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:49,602 INFO L124 PetriNetUnfolderBase]: 81/206 cut-off events. [2023-11-19 08:03:49,602 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 08:03:49,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 206 events. 81/206 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 714 event pairs, 45 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 401. Up to 107 conditions per place. [2023-11-19 08:03:49,604 INFO L140 encePairwiseOnDemand]: 522/524 looper letters, 28 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-11-19 08:03:49,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 132 flow [2023-11-19 08:03:49,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2023-11-19 08:03:49,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44656488549618323 [2023-11-19 08:03:49,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 702 transitions. [2023-11-19 08:03:49,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 702 transitions. [2023-11-19 08:03:49,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:49,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 702 transitions. [2023-11-19 08:03:49,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 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) [2023-11-19 08:03:49,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:49,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:49,620 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 56 flow. Second operand 3 states and 702 transitions. [2023-11-19 08:03:49,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 132 flow [2023-11-19 08:03:49,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:49,622 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 52 flow [2023-11-19 08:03:49,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2023-11-19 08:03:49,623 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-11-19 08:03:49,624 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 52 flow [2023-11-19 08:03:49,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2023-11-19 08:03:49,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:49,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:49,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:03:49,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:49,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:49,627 INFO L85 PathProgramCache]: Analyzing trace with hash -305120559, now seen corresponding path program 1 times [2023-11-19 08:03:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:49,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462473410] [2023-11-19 08:03:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:49,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462473410] [2023-11-19 08:03:49,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462473410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:49,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:49,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:49,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851855645] [2023-11-19 08:03:49,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:49,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:49,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:49,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:49,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:49,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 524 [2023-11-19 08:03:49,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2023-11-19 08:03:49,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:49,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 524 [2023-11-19 08:03:49,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:49,783 INFO L124 PetriNetUnfolderBase]: 63/168 cut-off events. [2023-11-19 08:03:49,784 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 08:03:49,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 168 events. 63/168 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 520 event pairs, 45 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 324. Up to 107 conditions per place. [2023-11-19 08:03:49,785 INFO L140 encePairwiseOnDemand]: 521/524 looper letters, 26 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-11-19 08:03:49,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 120 flow [2023-11-19 08:03:49,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:49,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2023-11-19 08:03:49,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44592875318066155 [2023-11-19 08:03:49,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 701 transitions. [2023-11-19 08:03:49,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 701 transitions. [2023-11-19 08:03:49,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:49,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 701 transitions. [2023-11-19 08:03:49,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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) [2023-11-19 08:03:49,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:49,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:49,800 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 52 flow. Second operand 3 states and 701 transitions. [2023-11-19 08:03:49,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 120 flow [2023-11-19 08:03:49,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 119 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:49,802 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 49 flow [2023-11-19 08:03:49,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2023-11-19 08:03:49,803 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-11-19 08:03:49,803 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 49 flow [2023-11-19 08:03:49,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2023-11-19 08:03:49,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:49,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:49,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:49,805 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:49,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:49,806 INFO L85 PathProgramCache]: Analyzing trace with hash -305120484, now seen corresponding path program 1 times [2023-11-19 08:03:49,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:49,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787725760] [2023-11-19 08:03:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:49,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787725760] [2023-11-19 08:03:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787725760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:49,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:49,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:49,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084751289] [2023-11-19 08:03:49,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:49,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:49,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:49,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:49,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:50,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 524 [2023-11-19 08:03:50,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 219.8) internal successors, (1099), 5 states have internal predecessors, (1099), 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) [2023-11-19 08:03:50,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:50,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 524 [2023-11-19 08:03:50,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:50,187 INFO L124 PetriNetUnfolderBase]: 73/206 cut-off events. [2023-11-19 08:03:50,188 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 08:03:50,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 206 events. 73/206 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 766 event pairs, 31 based on Foata normal form. 10/212 useless extension candidates. Maximal degree in co-relation 414. Up to 86 conditions per place. [2023-11-19 08:03:50,189 INFO L140 encePairwiseOnDemand]: 519/524 looper letters, 18 selfloop transitions, 2 changer transitions 25/49 dead transitions. [2023-11-19 08:03:50,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 49 transitions, 199 flow [2023-11-19 08:03:50,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:03:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 08:03:50,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1573 transitions. [2023-11-19 08:03:50,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4288440567066521 [2023-11-19 08:03:50,197 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1573 transitions. [2023-11-19 08:03:50,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1573 transitions. [2023-11-19 08:03:50,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:50,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1573 transitions. [2023-11-19 08:03:50,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 224.71428571428572) internal successors, (1573), 7 states have internal predecessors, (1573), 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) [2023-11-19 08:03:50,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 524.0) internal successors, (4192), 8 states have internal predecessors, (4192), 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) [2023-11-19 08:03:50,217 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 524.0) internal successors, (4192), 8 states have internal predecessors, (4192), 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) [2023-11-19 08:03:50,217 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 49 flow. Second operand 7 states and 1573 transitions. [2023-11-19 08:03:50,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 49 transitions, 199 flow [2023-11-19 08:03:50,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 49 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:50,220 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 64 flow [2023-11-19 08:03:50,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=64, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2023-11-19 08:03:50,221 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -5 predicate places. [2023-11-19 08:03:50,221 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 64 flow [2023-11-19 08:03:50,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 219.8) internal successors, (1099), 5 states have internal predecessors, (1099), 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) [2023-11-19 08:03:50,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:50,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:50,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:03:50,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:50,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:50,224 INFO L85 PathProgramCache]: Analyzing trace with hash -71704759, now seen corresponding path program 1 times [2023-11-19 08:03:50,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:50,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453024217] [2023-11-19 08:03:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:50,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:50,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:50,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453024217] [2023-11-19 08:03:50,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453024217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:50,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:50,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:50,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11390018] [2023-11-19 08:03:50,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:50,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:50,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:50,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:50,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:50,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 524 [2023-11-19 08:03:50,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2023-11-19 08:03:50,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:50,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 524 [2023-11-19 08:03:50,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:50,433 INFO L124 PetriNetUnfolderBase]: 41/123 cut-off events. [2023-11-19 08:03:50,433 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-11-19 08:03:50,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 123 events. 41/123 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 375 event pairs, 14 based on Foata normal form. 10/133 useless extension candidates. Maximal degree in co-relation 294. Up to 68 conditions per place. [2023-11-19 08:03:50,434 INFO L140 encePairwiseOnDemand]: 516/524 looper letters, 21 selfloop transitions, 8 changer transitions 1/32 dead transitions. [2023-11-19 08:03:50,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 156 flow [2023-11-19 08:03:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:50,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2023-11-19 08:03:50,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4312977099236641 [2023-11-19 08:03:50,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2023-11-19 08:03:50,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2023-11-19 08:03:50,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:50,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2023-11-19 08:03:50,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 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) [2023-11-19 08:03:50,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:50,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 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) [2023-11-19 08:03:50,448 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 64 flow. Second operand 3 states and 678 transitions. [2023-11-19 08:03:50,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 156 flow [2023-11-19 08:03:50,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 136 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 08:03:50,450 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 90 flow [2023-11-19 08:03:50,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-11-19 08:03:50,452 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2023-11-19 08:03:50,452 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 90 flow [2023-11-19 08:03:50,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2023-11-19 08:03:50,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:50,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:50,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:03:50,453 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 08:03:50,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:50,454 INFO L85 PathProgramCache]: Analyzing trace with hash 855750375, now seen corresponding path program 1 times [2023-11-19 08:03:50,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:50,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580833483] [2023-11-19 08:03:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:50,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:50,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:50,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580833483] [2023-11-19 08:03:50,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580833483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:50,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:50,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317555489] [2023-11-19 08:03:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:50,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:50,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 524 [2023-11-19 08:03:50,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 90 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2023-11-19 08:03:50,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:50,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 524 [2023-11-19 08:03:50,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:50,847 INFO L124 PetriNetUnfolderBase]: 31/100 cut-off events. [2023-11-19 08:03:50,847 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-19 08:03:50,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 100 events. 31/100 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 286 event pairs, 11 based on Foata normal form. 5/103 useless extension candidates. Maximal degree in co-relation 268. Up to 36 conditions per place. [2023-11-19 08:03:50,848 INFO L140 encePairwiseOnDemand]: 519/524 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2023-11-19 08:03:50,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 202 flow [2023-11-19 08:03:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:03:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 08:03:50,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1734 transitions. [2023-11-19 08:03:50,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4136450381679389 [2023-11-19 08:03:50,858 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1734 transitions. [2023-11-19 08:03:50,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1734 transitions. [2023-11-19 08:03:50,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:50,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1734 transitions. [2023-11-19 08:03:50,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 216.75) internal successors, (1734), 8 states have internal predecessors, (1734), 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) [2023-11-19 08:03:50,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 524.0) internal successors, (4716), 9 states have internal predecessors, (4716), 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) [2023-11-19 08:03:50,885 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 524.0) internal successors, (4716), 9 states have internal predecessors, (4716), 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) [2023-11-19 08:03:50,886 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 90 flow. Second operand 8 states and 1734 transitions. [2023-11-19 08:03:50,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 202 flow [2023-11-19 08:03:50,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:50,891 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-11-19 08:03:50,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-11-19 08:03:50,892 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -7 predicate places. [2023-11-19 08:03:50,893 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-11-19 08:03:50,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2023-11-19 08:03:50,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2023-11-19 08:03:50,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2023-11-19 08:03:50,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2023-11-19 08:03:50,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2023-11-19 08:03:50,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2023-11-19 08:03:50,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2023-11-19 08:03:50,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2023-11-19 08:03:50,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2023-11-19 08:03:50,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2023-11-19 08:03:50,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2023-11-19 08:03:50,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2023-11-19 08:03:50,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2023-11-19 08:03:50,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2023-11-19 08:03:50,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2023-11-19 08:03:50,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2023-11-19 08:03:50,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2023-11-19 08:03:50,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2023-11-19 08:03:50,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2023-11-19 08:03:50,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2023-11-19 08:03:50,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:03:50,904 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:50,913 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:03:50,913 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:03:50,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:50 BasicIcfg [2023-11-19 08:03:50,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:03:50,929 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:03:50,929 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:03:50,929 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:03:50,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:36" (3/4) ... [2023-11-19 08:03:50,932 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:03:50,938 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 08:03:50,946 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 08:03:50,947 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 08:03:50,947 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:03:50,948 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:03:51,098 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:03:51,101 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:03:51,101 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:03:51,102 INFO L158 Benchmark]: Toolchain (without parser) took 16120.50ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 140.1MB in the beginning and 106.3MB in the end (delta: 33.8MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,103 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 100.4MB in the beginning and 100.4MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:51,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.84ms. Allocated memory is still 188.7MB. Free memory was 139.3MB in the beginning and 119.7MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.43ms. Allocated memory is still 188.7MB. Free memory was 119.7MB in the beginning and 117.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,105 INFO L158 Benchmark]: Boogie Preprocessor took 51.16ms. Allocated memory is still 188.7MB. Free memory was 117.0MB in the beginning and 115.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,105 INFO L158 Benchmark]: RCFGBuilder took 784.59ms. Allocated memory is still 188.7MB. Free memory was 115.4MB in the beginning and 94.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,106 INFO L158 Benchmark]: TraceAbstraction took 14432.58ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 93.2MB in the beginning and 111.6MB in the end (delta: -18.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,106 INFO L158 Benchmark]: Witness Printer took 173.02ms. Allocated memory is still 226.5MB. Free memory was 111.6MB in the beginning and 106.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 08:03:51,111 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 100.4MB in the beginning and 100.4MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.84ms. Allocated memory is still 188.7MB. Free memory was 139.3MB in the beginning and 119.7MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.43ms. Allocated memory is still 188.7MB. Free memory was 119.7MB in the beginning and 117.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.16ms. Allocated memory is still 188.7MB. Free memory was 117.0MB in the beginning and 115.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 784.59ms. Allocated memory is still 188.7MB. Free memory was 115.4MB in the beginning and 94.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14432.58ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 93.2MB in the beginning and 111.6MB in the end (delta: -18.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 173.02ms. Allocated memory is still 226.5MB. Free memory was 111.6MB in the beginning and 106.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5s, 227 PlacesBefore, 44 PlacesAfterwards, 238 TransitionsBefore, 45 TransitionsAfterwards, 18150 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 183 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 51 ConcurrentYvCompositions, 10 ChoiceCompositions, 284 TotalNumberOfCompositions, 28643 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17519, independent: 17127, independent conditional: 0, independent unconditional: 17127, dependent: 392, dependent conditional: 0, dependent unconditional: 392, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10680, independent: 10599, independent conditional: 0, independent unconditional: 10599, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17519, independent: 6528, independent conditional: 0, independent unconditional: 6528, dependent: 311, dependent conditional: 0, dependent unconditional: 311, unknown: 10680, unknown conditional: 0, unknown unconditional: 10680] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 164, Positive conditional cache size: 0, Positive unconditional cache size: 164, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: 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, 337 locations, 19 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: 14.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 365 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 229 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 586 IncrementalHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 47 mSDtfsCounter, 586 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 29, 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, 0.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:03:51,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4d09e1-844b-494b-bfc5-24d949c2bf78/bin/uautomizer-verify-uCwYo4JHxu/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