./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64fd5c9a7c03c96af66cf5f857887398d304caaa83220f1caa01f4ec8c71700a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:30:53,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:30:53,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:30:53,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:30:53,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:30:53,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:30:53,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:30:53,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:30:53,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:30:53,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:30:53,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:30:53,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:30:53,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:30:53,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:30:53,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:30:53,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:30:53,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:30:53,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:30:53,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:30:53,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:30:53,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:30:53,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:30:53,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:30:53,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:30:53,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:30:53,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:30:53,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:30:53,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:30:53,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:30:53,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:30:53,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:30:53,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:30:53,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:30:53,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:30:53,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:30:53,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:30:53,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:30:53,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:30:53,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:30:53,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:30:53,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:30:53,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:30:53,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:30:53,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:30:53,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:30:53,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:30:53,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:30:53,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:30:53,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:30:53,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:30:53,749 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:30:53,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:30:53,749 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:30:53,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:30:53,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:30:53,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:30:53,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:30:53,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:30:53,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:30:53,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:30:53,751 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:30:53,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:30:53,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:30:53,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:30:53,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:30:53,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:30:53,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:30:53,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:30:53,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:30:53,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:30:53,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:30:53,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:30:53,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:30:53,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:30:53,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:30:53,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:30:53,754 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:30:53,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:30:53,754 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:30:53,754 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64fd5c9a7c03c96af66cf5f857887398d304caaa83220f1caa01f4ec8c71700a [2022-12-13 20:30:53,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:30:53,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:30:53,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:30:53,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:30:53,964 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:30:53,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c [2022-12-13 20:30:56,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:30:56,632 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:30:56,633 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c [2022-12-13 20:30:56,638 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/data/e2142788f/48d7381247c643618c52b03f4bc7cc61/FLAG3f32914ca [2022-12-13 20:30:57,056 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/data/e2142788f/48d7381247c643618c52b03f4bc7cc61 [2022-12-13 20:30:57,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:30:57,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:30:57,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:30:57,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:30:57,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:30:57,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a772ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57, skipping insertion in model container [2022-12-13 20:30:57,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:30:57,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:30:57,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:30:57,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:30:57,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:30:57,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:30:57,207 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c[2986,2999] [2022-12-13 20:30:57,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:30:57,222 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:30:57,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:30:57,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:30:57,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:30:57,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:30:57,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c[2986,2999] [2022-12-13 20:30:57,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:30:57,260 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:30:57,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57 WrapperNode [2022-12-13 20:30:57,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:30:57,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:30:57,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:30:57,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:30:57,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,304 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 364 [2022-12-13 20:30:57,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:30:57,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:30:57,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:30:57,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:30:57,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:30:57,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:30:57,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:30:57,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:30:57,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (1/1) ... [2022-12-13 20:30:57,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:30:57,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:30:57,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:30:57,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:30:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:30:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 20:30:57,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 20:30:57,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:30:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:30:57,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:30:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:30:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:30:57,406 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:30:57,492 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:30:57,494 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:30:57,960 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:30:59,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:30:59,540 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:30:59,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:30:59 BoogieIcfgContainer [2022-12-13 20:30:59,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:30:59,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:30:59,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:30:59,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:30:59,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:30:57" (1/3) ... [2022-12-13 20:30:59,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d10168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:30:59, skipping insertion in model container [2022-12-13 20:30:59,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:30:57" (2/3) ... [2022-12-13 20:30:59,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d10168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:30:59, skipping insertion in model container [2022-12-13 20:30:59,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:30:59" (3/3) ... [2022-12-13 20:30:59,549 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2022-12-13 20:30:59,556 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:30:59,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:30:59,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-12-13 20:30:59,564 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:31:00,026 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:31:00,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 161 transitions, 338 flow [2022-12-13 20:31:00,196 INFO L130 PetriNetUnfolder]: 3/159 cut-off events. [2022-12-13 20:31:00,196 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:31:00,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 3/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 324 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-13 20:31:00,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 161 transitions, 338 flow [2022-12-13 20:31:00,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 124 transitions, 257 flow [2022-12-13 20:31:00,209 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:31:00,219 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 124 transitions, 257 flow [2022-12-13 20:31:00,222 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 124 transitions, 257 flow [2022-12-13 20:31:00,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 124 transitions, 257 flow [2022-12-13 20:31:00,320 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2022-12-13 20:31:00,320 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:31:00,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 124 events. 0/124 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 318 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 20:31:00,322 INFO L119 LiptonReduction]: Number of co-enabled transitions 2268 [2022-12-13 20:31:22,235 INFO L134 LiptonReduction]: Checked pairs total: 1158 [2022-12-13 20:31:22,235 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-12-13 20:31:22,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:31:22,254 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@215e8e69, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:31:22,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 98 error locations. [2022-12-13 20:31:22,257 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 20:31:22,257 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:22,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:22,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:22,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:22,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1726549, now seen corresponding path program 1 times [2022-12-13 20:31:22,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:22,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931929411] [2022-12-13 20:31:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:22,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:22,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931929411] [2022-12-13 20:31:22,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931929411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:22,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:22,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:22,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780701043] [2022-12-13 20:31:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:22,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:31:22,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:22,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:31:22,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:31:22,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 228 [2022-12-13 20:31:22,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 123 flow. Second operand has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:22,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:22,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 228 [2022-12-13 20:31:22,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:23,737 INFO L130 PetriNetUnfolder]: 969/1690 cut-off events. [2022-12-13 20:31:23,737 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 20:31:23,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3440 conditions, 1690 events. 969/1690 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 10675 event pairs, 969 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 3272. Up to 1691 conditions per place. [2022-12-13 20:31:23,746 INFO L137 encePairwiseOnDemand]: 212/228 looper letters, 41 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2022-12-13 20:31:23,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 173 flow [2022-12-13 20:31:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:31:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:31:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 263 transitions. [2022-12-13 20:31:23,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5767543859649122 [2022-12-13 20:31:23,757 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 263 transitions. [2022-12-13 20:31:23,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 263 transitions. [2022-12-13 20:31:23,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:23,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 263 transitions. [2022-12-13 20:31:23,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:23,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:23,767 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:23,769 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 123 flow. Second operand 2 states and 263 transitions. [2022-12-13 20:31:23,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 173 flow [2022-12-13 20:31:23,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 20:31:23,773 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 86 flow [2022-12-13 20:31:23,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2022-12-13 20:31:23,779 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -18 predicate places. [2022-12-13 20:31:23,779 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 86 flow [2022-12-13 20:31:23,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:23,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:23,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:23,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:31:23,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:23,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:23,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1726550, now seen corresponding path program 1 times [2022-12-13 20:31:23,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:23,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370511051] [2022-12-13 20:31:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:23,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:23,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:23,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370511051] [2022-12-13 20:31:23,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370511051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:23,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:23,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949080579] [2022-12-13 20:31:23,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:23,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:23,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:23,876 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:23,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:23,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:23,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:23,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:24,980 INFO L130 PetriNetUnfolder]: 864/1511 cut-off events. [2022-12-13 20:31:24,980 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:24,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3060 conditions, 1511 events. 864/1511 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 9324 event pairs, 864 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 3057. Up to 1511 conditions per place. [2022-12-13 20:31:24,986 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 38 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2022-12-13 20:31:24,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 160 flow [2022-12-13 20:31:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-12-13 20:31:24,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5029239766081871 [2022-12-13 20:31:24,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-12-13 20:31:24,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-12-13 20:31:24,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:24,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-12-13 20:31:24,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:24,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:24,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:24,991 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 86 flow. Second operand 3 states and 344 transitions. [2022-12-13 20:31:24,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 160 flow [2022-12-13 20:31:24,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:31:24,992 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 84 flow [2022-12-13 20:31:24,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2022-12-13 20:31:24,993 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -18 predicate places. [2022-12-13 20:31:24,993 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 84 flow [2022-12-13 20:31:24,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:24,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:24,993 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:24,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:31:24,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:24,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:24,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1726551, now seen corresponding path program 1 times [2022-12-13 20:31:24,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:24,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224516467] [2022-12-13 20:31:24,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:24,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:25,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:25,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224516467] [2022-12-13 20:31:25,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224516467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:25,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:25,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:25,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138312436] [2022-12-13 20:31:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:25,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:25,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:25,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:25,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:25,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:25,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:25,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:25,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:25,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:26,125 INFO L130 PetriNetUnfolder]: 765/1342 cut-off events. [2022-12-13 20:31:26,125 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:26,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2722 conditions, 1342 events. 765/1342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 8072 event pairs, 765 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 2718. Up to 1342 conditions per place. [2022-12-13 20:31:26,129 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 36 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2022-12-13 20:31:26,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 154 flow [2022-12-13 20:31:26,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:26,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-12-13 20:31:26,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 20:31:26,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-12-13 20:31:26,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-12-13 20:31:26,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:26,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-12-13 20:31:26,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:26,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:26,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:26,134 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 84 flow. Second operand 3 states and 342 transitions. [2022-12-13 20:31:26,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 154 flow [2022-12-13 20:31:26,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:26,135 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 81 flow [2022-12-13 20:31:26,135 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2022-12-13 20:31:26,135 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -19 predicate places. [2022-12-13 20:31:26,135 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 81 flow [2022-12-13 20:31:26,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:26,136 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:26,136 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:26,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:31:26,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1726553, now seen corresponding path program 1 times [2022-12-13 20:31:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:26,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419536074] [2022-12-13 20:31:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:26,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:26,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419536074] [2022-12-13 20:31:26,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419536074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:26,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:26,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:26,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313891507] [2022-12-13 20:31:26,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:26,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:26,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:26,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:26,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:26,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:26,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:26,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:26,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:26,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:27,273 INFO L130 PetriNetUnfolder]: 672/1183 cut-off events. [2022-12-13 20:31:27,273 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:27,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 1183 events. 672/1183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 6982 event pairs, 672 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 2399. Up to 1183 conditions per place. [2022-12-13 20:31:27,278 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 34 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2022-12-13 20:31:27,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 147 flow [2022-12-13 20:31:27,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2022-12-13 20:31:27,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49707602339181284 [2022-12-13 20:31:27,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2022-12-13 20:31:27,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2022-12-13 20:31:27,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:27,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2022-12-13 20:31:27,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:27,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:27,282 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:27,282 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 81 flow. Second operand 3 states and 340 transitions. [2022-12-13 20:31:27,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 147 flow [2022-12-13 20:31:27,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:27,283 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 78 flow [2022-12-13 20:31:27,284 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2022-12-13 20:31:27,284 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -20 predicate places. [2022-12-13 20:31:27,284 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 78 flow [2022-12-13 20:31:27,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:27,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:27,285 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:27,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:31:27,285 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1726554, now seen corresponding path program 1 times [2022-12-13 20:31:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:27,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48818136] [2022-12-13 20:31:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:27,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:27,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48818136] [2022-12-13 20:31:27,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48818136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:27,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:27,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:27,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492122324] [2022-12-13 20:31:27,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:27,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:27,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:27,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:27,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:27,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:27,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:27,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:27,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:28,342 INFO L130 PetriNetUnfolder]: 585/1034 cut-off events. [2022-12-13 20:31:28,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:28,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2104 conditions, 1034 events. 585/1034 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 5935 event pairs, 585 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 2100. Up to 1034 conditions per place. [2022-12-13 20:31:28,346 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 32 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2022-12-13 20:31:28,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 33 transitions, 140 flow [2022-12-13 20:31:28,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2022-12-13 20:31:28,347 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49415204678362573 [2022-12-13 20:31:28,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2022-12-13 20:31:28,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2022-12-13 20:31:28,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:28,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2022-12-13 20:31:28,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:28,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:28,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:28,349 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 78 flow. Second operand 3 states and 338 transitions. [2022-12-13 20:31:28,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 33 transitions, 140 flow [2022-12-13 20:31:28,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 139 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:28,350 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 75 flow [2022-12-13 20:31:28,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2022-12-13 20:31:28,350 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -21 predicate places. [2022-12-13 20:31:28,350 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 75 flow [2022-12-13 20:31:28,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:28,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:28,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:28,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:31:28,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:28,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1726556, now seen corresponding path program 1 times [2022-12-13 20:31:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:28,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548548513] [2022-12-13 20:31:28,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:28,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:28,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:28,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548548513] [2022-12-13 20:31:28,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548548513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:28,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:28,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:28,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684379698] [2022-12-13 20:31:28,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:28,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:28,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:28,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:28,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:28,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:28,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:28,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:28,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:28,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:29,264 INFO L130 PetriNetUnfolder]: 504/895 cut-off events. [2022-12-13 20:31:29,264 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:29,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 895 events. 504/895 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 4983 event pairs, 504 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 1821. Up to 895 conditions per place. [2022-12-13 20:31:29,267 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 30 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2022-12-13 20:31:29,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 133 flow [2022-12-13 20:31:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2022-12-13 20:31:29,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49122807017543857 [2022-12-13 20:31:29,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2022-12-13 20:31:29,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2022-12-13 20:31:29,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:29,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2022-12-13 20:31:29,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:29,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:29,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:29,270 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 3 states and 336 transitions. [2022-12-13 20:31:29,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 133 flow [2022-12-13 20:31:29,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:29,270 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 72 flow [2022-12-13 20:31:29,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2022-12-13 20:31:29,271 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -22 predicate places. [2022-12-13 20:31:29,271 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 72 flow [2022-12-13 20:31:29,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:29,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:29,271 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:29,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:31:29,272 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1726557, now seen corresponding path program 1 times [2022-12-13 20:31:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:29,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097054396] [2022-12-13 20:31:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:29,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:29,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097054396] [2022-12-13 20:31:29,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097054396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:29,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:29,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:29,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659285627] [2022-12-13 20:31:29,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:29,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:29,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:29,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:29,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:29,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:29,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:30,152 INFO L130 PetriNetUnfolder]: 429/766 cut-off events. [2022-12-13 20:31:30,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:30,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 766 events. 429/766 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 4116 event pairs, 429 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 1562. Up to 766 conditions per place. [2022-12-13 20:31:30,154 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 28 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2022-12-13 20:31:30,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 29 transitions, 126 flow [2022-12-13 20:31:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2022-12-13 20:31:30,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48830409356725146 [2022-12-13 20:31:30,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2022-12-13 20:31:30,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2022-12-13 20:31:30,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:30,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2022-12-13 20:31:30,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,157 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 72 flow. Second operand 3 states and 334 transitions. [2022-12-13 20:31:30,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 29 transitions, 126 flow [2022-12-13 20:31:30,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 125 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:30,158 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 69 flow [2022-12-13 20:31:30,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2022-12-13 20:31:30,158 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -23 predicate places. [2022-12-13 20:31:30,159 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 69 flow [2022-12-13 20:31:30,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:30,159 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:30,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:31:30,159 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:30,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:30,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1726559, now seen corresponding path program 1 times [2022-12-13 20:31:30,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:30,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162825639] [2022-12-13 20:31:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:30,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:30,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162825639] [2022-12-13 20:31:30,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162825639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:30,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:30,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:30,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406196739] [2022-12-13 20:31:30,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:30,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:30,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:30,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:30,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:30,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:30,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:30,958 INFO L130 PetriNetUnfolder]: 360/647 cut-off events. [2022-12-13 20:31:30,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:30,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 647 events. 360/647 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 3352 event pairs, 360 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 1323. Up to 647 conditions per place. [2022-12-13 20:31:30,960 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 26 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2022-12-13 20:31:30,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 27 transitions, 119 flow [2022-12-13 20:31:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:30,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2022-12-13 20:31:30,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4853801169590643 [2022-12-13 20:31:30,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2022-12-13 20:31:30,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2022-12-13 20:31:30,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:30,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2022-12-13 20:31:30,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,962 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 69 flow. Second operand 3 states and 332 transitions. [2022-12-13 20:31:30,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 27 transitions, 119 flow [2022-12-13 20:31:30,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 27 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:30,963 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 66 flow [2022-12-13 20:31:30,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 20:31:30,963 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -24 predicate places. [2022-12-13 20:31:30,964 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 66 flow [2022-12-13 20:31:30,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:30,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:30,964 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:30,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:31:30,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1726560, now seen corresponding path program 1 times [2022-12-13 20:31:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:30,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180106460] [2022-12-13 20:31:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:30,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:31,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:31,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180106460] [2022-12-13 20:31:31,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180106460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:31,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:31,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:31,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684930798] [2022-12-13 20:31:31,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:31,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:31,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:31,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:31,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:31,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:31,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:31,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:31,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:31,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:31,664 INFO L130 PetriNetUnfolder]: 297/538 cut-off events. [2022-12-13 20:31:31,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:31,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 538 events. 297/538 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2683 event pairs, 297 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 1104. Up to 538 conditions per place. [2022-12-13 20:31:31,666 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 24 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2022-12-13 20:31:31,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 112 flow [2022-12-13 20:31:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:31,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2022-12-13 20:31:31,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4824561403508772 [2022-12-13 20:31:31,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2022-12-13 20:31:31,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2022-12-13 20:31:31,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:31,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2022-12-13 20:31:31,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:31,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:31,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:31,668 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states and 330 transitions. [2022-12-13 20:31:31,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 112 flow [2022-12-13 20:31:31,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 25 transitions, 111 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:31,669 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 63 flow [2022-12-13 20:31:31,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2022-12-13 20:31:31,669 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -25 predicate places. [2022-12-13 20:31:31,670 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 63 flow [2022-12-13 20:31:31,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:31,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:31,670 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:31,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:31:31,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1726562, now seen corresponding path program 1 times [2022-12-13 20:31:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:31,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465336621] [2022-12-13 20:31:31,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:31,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465336621] [2022-12-13 20:31:31,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465336621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:31,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:31,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311925333] [2022-12-13 20:31:31,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:31,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:31,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:31,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:31,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:31,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:31,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:31,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:31,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:32,259 INFO L130 PetriNetUnfolder]: 240/439 cut-off events. [2022-12-13 20:31:32,259 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:32,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 439 events. 240/439 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2076 event pairs, 240 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 905. Up to 439 conditions per place. [2022-12-13 20:31:32,260 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 22 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2022-12-13 20:31:32,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 23 transitions, 105 flow [2022-12-13 20:31:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2022-12-13 20:31:32,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47953216374269003 [2022-12-13 20:31:32,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2022-12-13 20:31:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2022-12-13 20:31:32,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:32,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2022-12-13 20:31:32,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,263 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 63 flow. Second operand 3 states and 328 transitions. [2022-12-13 20:31:32,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 23 transitions, 105 flow [2022-12-13 20:31:32,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 23 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:32,264 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 60 flow [2022-12-13 20:31:32,264 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2022-12-13 20:31:32,264 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -26 predicate places. [2022-12-13 20:31:32,264 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 60 flow [2022-12-13 20:31:32,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,264 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:32,265 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:32,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:31:32,265 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:32,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:32,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1726563, now seen corresponding path program 1 times [2022-12-13 20:31:32,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:32,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170061414] [2022-12-13 20:31:32,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:32,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:32,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:32,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170061414] [2022-12-13 20:31:32,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170061414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:32,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:32,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:32,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000114587] [2022-12-13 20:31:32,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:32,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:32,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:32,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:32,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:32,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:32,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:32,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:32,783 INFO L130 PetriNetUnfolder]: 189/350 cut-off events. [2022-12-13 20:31:32,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:32,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 350 events. 189/350 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 1557 event pairs, 189 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 726. Up to 350 conditions per place. [2022-12-13 20:31:32,784 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 20 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2022-12-13 20:31:32,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 21 transitions, 98 flow [2022-12-13 20:31:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:32,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:32,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2022-12-13 20:31:32,785 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4766081871345029 [2022-12-13 20:31:32,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2022-12-13 20:31:32,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2022-12-13 20:31:32,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:32,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2022-12-13 20:31:32,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,787 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 60 flow. Second operand 3 states and 326 transitions. [2022-12-13 20:31:32,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 21 transitions, 98 flow [2022-12-13 20:31:32,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 21 transitions, 97 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:32,787 INFO L231 Difference]: Finished difference. Result has 37 places, 21 transitions, 57 flow [2022-12-13 20:31:32,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=37, PETRI_TRANSITIONS=21} [2022-12-13 20:31:32,788 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -27 predicate places. [2022-12-13 20:31:32,788 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 21 transitions, 57 flow [2022-12-13 20:31:32,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:32,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:32,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:31:32,788 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:32,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:32,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1726565, now seen corresponding path program 1 times [2022-12-13 20:31:32,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:32,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723491301] [2022-12-13 20:31:32,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:32,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:32,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:32,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723491301] [2022-12-13 20:31:32,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723491301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:32,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:32,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:32,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263676210] [2022-12-13 20:31:32,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:32,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:32,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:32,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:32,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:32,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 21 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:32,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:32,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:32,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:33,294 INFO L130 PetriNetUnfolder]: 144/271 cut-off events. [2022-12-13 20:31:33,294 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:33,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 271 events. 144/271 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1116 event pairs, 144 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 567. Up to 271 conditions per place. [2022-12-13 20:31:33,295 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 18 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2022-12-13 20:31:33,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 19 transitions, 91 flow [2022-12-13 20:31:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2022-12-13 20:31:33,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2022-12-13 20:31:33,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2022-12-13 20:31:33,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2022-12-13 20:31:33,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:33,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2022-12-13 20:31:33,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,297 INFO L175 Difference]: Start difference. First operand has 37 places, 21 transitions, 57 flow. Second operand 3 states and 324 transitions. [2022-12-13 20:31:33,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 19 transitions, 91 flow [2022-12-13 20:31:33,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 19 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:33,298 INFO L231 Difference]: Finished difference. Result has 36 places, 19 transitions, 54 flow [2022-12-13 20:31:33,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=36, PETRI_TRANSITIONS=19} [2022-12-13 20:31:33,298 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -28 predicate places. [2022-12-13 20:31:33,298 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 19 transitions, 54 flow [2022-12-13 20:31:33,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:33,299 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:33,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:31:33,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:33,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:33,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1726566, now seen corresponding path program 1 times [2022-12-13 20:31:33,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:33,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258708915] [2022-12-13 20:31:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:33,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:33,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258708915] [2022-12-13 20:31:33,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258708915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:33,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:33,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:33,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881495219] [2022-12-13 20:31:33,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:33,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:33,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:33,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:33,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:33,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:33,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 19 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:33,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:33,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:33,731 INFO L130 PetriNetUnfolder]: 105/202 cut-off events. [2022-12-13 20:31:33,731 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:33,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 202 events. 105/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 771 event pairs, 105 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 428. Up to 202 conditions per place. [2022-12-13 20:31:33,732 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2022-12-13 20:31:33,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 17 transitions, 84 flow [2022-12-13 20:31:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:33,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-12-13 20:31:33,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47076023391812866 [2022-12-13 20:31:33,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-12-13 20:31:33,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-12-13 20:31:33,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:33,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-12-13 20:31:33,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,735 INFO L175 Difference]: Start difference. First operand has 36 places, 19 transitions, 54 flow. Second operand 3 states and 322 transitions. [2022-12-13 20:31:33,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 17 transitions, 84 flow [2022-12-13 20:31:33,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 17 transitions, 83 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:33,735 INFO L231 Difference]: Finished difference. Result has 35 places, 17 transitions, 51 flow [2022-12-13 20:31:33,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2022-12-13 20:31:33,735 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -29 predicate places. [2022-12-13 20:31:33,736 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 17 transitions, 51 flow [2022-12-13 20:31:33,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:33,736 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:31:33,736 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:33,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1726568, now seen corresponding path program 1 times [2022-12-13 20:31:33,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:33,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646560171] [2022-12-13 20:31:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:33,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:33,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646560171] [2022-12-13 20:31:33,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646560171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:33,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:33,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:33,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162978123] [2022-12-13 20:31:33,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:33,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:33,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:33,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:33,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:33,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:33,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 17 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:33,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:33,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:33,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:34,050 INFO L130 PetriNetUnfolder]: 72/143 cut-off events. [2022-12-13 20:31:34,050 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:34,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 143 events. 72/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 485 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 309. Up to 143 conditions per place. [2022-12-13 20:31:34,051 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2022-12-13 20:31:34,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 15 transitions, 77 flow [2022-12-13 20:31:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2022-12-13 20:31:34,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4678362573099415 [2022-12-13 20:31:34,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2022-12-13 20:31:34,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2022-12-13 20:31:34,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:34,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2022-12-13 20:31:34,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,055 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,055 INFO L175 Difference]: Start difference. First operand has 35 places, 17 transitions, 51 flow. Second operand 3 states and 320 transitions. [2022-12-13 20:31:34,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 15 transitions, 77 flow [2022-12-13 20:31:34,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 15 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:34,056 INFO L231 Difference]: Finished difference. Result has 34 places, 15 transitions, 48 flow [2022-12-13 20:31:34,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=34, PETRI_TRANSITIONS=15} [2022-12-13 20:31:34,056 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -30 predicate places. [2022-12-13 20:31:34,056 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 15 transitions, 48 flow [2022-12-13 20:31:34,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:34,057 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:34,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:31:34,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:34,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:34,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1726569, now seen corresponding path program 1 times [2022-12-13 20:31:34,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:34,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270629609] [2022-12-13 20:31:34,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:34,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:34,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270629609] [2022-12-13 20:31:34,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270629609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:34,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:34,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:34,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741098748] [2022-12-13 20:31:34,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:34,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:34,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:34,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:34,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:34,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:34,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 15 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:34,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:34,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:34,367 INFO L130 PetriNetUnfolder]: 45/94 cut-off events. [2022-12-13 20:31:34,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:34,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 94 events. 45/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 268 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 210. Up to 94 conditions per place. [2022-12-13 20:31:34,367 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2022-12-13 20:31:34,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 13 transitions, 70 flow [2022-12-13 20:31:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2022-12-13 20:31:34,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2022-12-13 20:31:34,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2022-12-13 20:31:34,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2022-12-13 20:31:34,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:34,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2022-12-13 20:31:34,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,372 INFO L175 Difference]: Start difference. First operand has 34 places, 15 transitions, 48 flow. Second operand 3 states and 318 transitions. [2022-12-13 20:31:34,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 13 transitions, 70 flow [2022-12-13 20:31:34,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 13 transitions, 69 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:34,373 INFO L231 Difference]: Finished difference. Result has 33 places, 13 transitions, 45 flow [2022-12-13 20:31:34,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=33, PETRI_TRANSITIONS=13} [2022-12-13 20:31:34,374 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -31 predicate places. [2022-12-13 20:31:34,374 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 13 transitions, 45 flow [2022-12-13 20:31:34,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:34,374 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:34,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:31:34,375 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:34,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1726571, now seen corresponding path program 1 times [2022-12-13 20:31:34,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:34,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483839184] [2022-12-13 20:31:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:34,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:34,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:34,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483839184] [2022-12-13 20:31:34,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483839184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:34,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:34,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:34,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716140994] [2022-12-13 20:31:34,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:34,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:34,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:34,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:34,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 13 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:34,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:34,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:34,853 INFO L130 PetriNetUnfolder]: 24/55 cut-off events. [2022-12-13 20:31:34,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:34,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 55 events. 24/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 119 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 131. Up to 55 conditions per place. [2022-12-13 20:31:34,854 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2022-12-13 20:31:34,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 11 transitions, 63 flow [2022-12-13 20:31:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:34,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2022-12-13 20:31:34,856 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4619883040935672 [2022-12-13 20:31:34,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2022-12-13 20:31:34,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2022-12-13 20:31:34,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:34,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2022-12-13 20:31:34,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,858 INFO L175 Difference]: Start difference. First operand has 33 places, 13 transitions, 45 flow. Second operand 3 states and 316 transitions. [2022-12-13 20:31:34,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 11 transitions, 63 flow [2022-12-13 20:31:34,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 11 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:34,858 INFO L231 Difference]: Finished difference. Result has 32 places, 11 transitions, 42 flow [2022-12-13 20:31:34,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=32, PETRI_TRANSITIONS=11} [2022-12-13 20:31:34,859 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -32 predicate places. [2022-12-13 20:31:34,859 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 11 transitions, 42 flow [2022-12-13 20:31:34,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:34,859 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:31:34,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:31:34,859 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-12-13 20:31:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1726572, now seen corresponding path program 1 times [2022-12-13 20:31:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:34,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177202545] [2022-12-13 20:31:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:35,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:35,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177202545] [2022-12-13 20:31:35,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177202545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:35,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:35,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:31:35,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47231220] [2022-12-13 20:31:35,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:35,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:31:35,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:31:35,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:31:35,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 228 [2022-12-13 20:31:35,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 11 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:35,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:35,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 228 [2022-12-13 20:31:35,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:35,201 INFO L130 PetriNetUnfolder]: 9/26 cut-off events. [2022-12-13 20:31:35,201 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:31:35,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 72. Up to 26 conditions per place. [2022-12-13 20:31:35,201 INFO L137 encePairwiseOnDemand]: 225/228 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2022-12-13 20:31:35,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 9 transitions, 56 flow [2022-12-13 20:31:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:31:35,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-12-13 20:31:35,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4590643274853801 [2022-12-13 20:31:35,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-12-13 20:31:35,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-12-13 20:31:35,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:35,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-12-13 20:31:35,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:35,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:35,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:35,205 INFO L175 Difference]: Start difference. First operand has 32 places, 11 transitions, 42 flow. Second operand 3 states and 314 transitions. [2022-12-13 20:31:35,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 9 transitions, 56 flow [2022-12-13 20:31:35,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 9 transitions, 55 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:31:35,206 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2022-12-13 20:31:35,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2022-12-13 20:31:35,206 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -33 predicate places. [2022-12-13 20:31:35,206 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2022-12-13 20:31:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:35,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 98 remaining) [2022-12-13 20:31:35,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 98 remaining) [2022-12-13 20:31:35,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 98 remaining) [2022-12-13 20:31:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 98 remaining) [2022-12-13 20:31:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 98 remaining) [2022-12-13 20:31:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 98 remaining) [2022-12-13 20:31:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 98 remaining) [2022-12-13 20:31:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 98 remaining) [2022-12-13 20:31:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 98 remaining) [2022-12-13 20:31:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 98 remaining) [2022-12-13 20:31:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 98 remaining) [2022-12-13 20:31:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 98 remaining) [2022-12-13 20:31:35,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 98 remaining) [2022-12-13 20:31:35,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 98 remaining) [2022-12-13 20:31:35,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 98 remaining) [2022-12-13 20:31:35,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 98 remaining) [2022-12-13 20:31:35,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 98 remaining) [2022-12-13 20:31:35,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:31:35,218 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:35,224 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:31:35,224 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:31:35,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:31:35 BasicIcfg [2022-12-13 20:31:35,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:31:35,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:31:35,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:31:35,227 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:31:35,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:30:59" (3/4) ... [2022-12-13 20:31:35,229 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:31:35,233 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 20:31:35,233 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 20:31:35,236 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 20:31:35,236 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 20:31:35,236 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:31:35,236 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:31:35,259 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:31:35,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:31:35,260 INFO L158 Benchmark]: Toolchain (without parser) took 38200.89ms. Allocated memory was 130.0MB in the beginning and 736.1MB in the end (delta: 606.1MB). Free memory was 95.3MB in the beginning and 342.6MB in the end (delta: -247.3MB). Peak memory consumption was 359.7MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,260 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:31:35,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.11ms. Allocated memory is still 130.0MB. Free memory was 95.0MB in the beginning and 83.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.53ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 80.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,260 INFO L158 Benchmark]: Boogie Preprocessor took 34.07ms. Allocated memory is still 130.0MB. Free memory was 80.3MB in the beginning and 78.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,261 INFO L158 Benchmark]: RCFGBuilder took 2202.57ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 78.5MB in the beginning and 72.2MB in the end (delta: 6.3MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,261 INFO L158 Benchmark]: TraceAbstraction took 35682.01ms. Allocated memory was 188.7MB in the beginning and 736.1MB in the end (delta: 547.4MB). Free memory was 71.1MB in the beginning and 345.8MB in the end (delta: -274.6MB). Peak memory consumption was 273.8MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,261 INFO L158 Benchmark]: Witness Printer took 32.33ms. Allocated memory is still 736.1MB. Free memory was 345.8MB in the beginning and 342.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:31:35,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.11ms. Allocated memory is still 130.0MB. Free memory was 95.0MB in the beginning and 83.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.53ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 80.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.07ms. Allocated memory is still 130.0MB. Free memory was 80.3MB in the beginning and 78.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2202.57ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 78.5MB in the beginning and 72.2MB in the end (delta: 6.3MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. * TraceAbstraction took 35682.01ms. Allocated memory was 188.7MB in the beginning and 736.1MB in the end (delta: 547.4MB). Free memory was 71.1MB in the beginning and 345.8MB in the end (delta: -274.6MB). Peak memory consumption was 273.8MB. Max. memory is 16.1GB. * Witness Printer took 32.33ms. Allocated memory is still 736.1MB. Free memory was 345.8MB in the beginning and 342.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.0s, 131 PlacesBefore, 64 PlacesAfterwards, 124 TransitionsBefore, 57 TransitionsAfterwards, 2268 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 67 TotalNumberOfCompositions, 1158 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1158, independent: 1158, independent conditional: 0, independent unconditional: 1158, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 471, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1158, independent: 687, independent conditional: 0, independent unconditional: 687, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 471, unknown conditional: 0, unknown unconditional: 471] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 101, Positive conditional cache size: 0, Positive unconditional cache size: 101, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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 5 procedures, 217 locations, 98 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: 35.2s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 22.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 450 IncrementalHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 15 mSDtfsCounter, 450 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 20:31:35,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cff35e30-8c40-4909-83f9-3aee3c5f02fc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE