./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/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_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/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_c76ba999-3ac1-4841-b1a5-917cbfffbc76/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 e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:46:26,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:46:26,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:46:26,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:46:26,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:46:26,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:46:26,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:46:26,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:46:26,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:46:26,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:46:26,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:46:26,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:46:26,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:46:26,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:46:26,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:46:26,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:46:26,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:46:26,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:46:26,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:46:26,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:46:26,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:46:26,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:46:26,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:46:26,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:46:26,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:46:26,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:46:26,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:46:26,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:46:26,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:46:26,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:46:26,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:46:26,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:46:26,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:46:26,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:46:26,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:46:26,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:46:26,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:46:26,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:46:26,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:46:26,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:46:26,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:46:26,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 13:46:26,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:46:26,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:46:26,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:46:26,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:46:26,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:46:26,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:46:26,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:46:26,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:46:26,517 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:46:26,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:46:26,517 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:46:26,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:46:26,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:46:26,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:46:26,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:46:26,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:46:26,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:46:26,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:46:26,519 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:46:26,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:46:26,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:46:26,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:46:26,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:46:26,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:46:26,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:46:26,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:46:26,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:46:26,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:46:26,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:46:26,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:46:26,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:46:26,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:46:26,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:46:26,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:46:26,522 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:46:26,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:46:26,522 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:46:26,523 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_c76ba999-3ac1-4841-b1a5-917cbfffbc76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2022-12-13 13:46:26,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:46:26,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:46:26,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:46:26,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:46:26,740 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:46:26,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-12-13 13:46:29,308 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:46:29,457 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:46:29,457 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-12-13 13:46:29,463 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/data/37161eaa1/62007963d1694efea7efde547090120e/FLAGb86274d4a [2022-12-13 13:46:29,474 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/data/37161eaa1/62007963d1694efea7efde547090120e [2022-12-13 13:46:29,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:46:29,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:46:29,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:46:29,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:46:29,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:46:29,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c642a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29, skipping insertion in model container [2022-12-13 13:46:29,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:46:29,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:46:29,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:46:29,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:46:29,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:46:29,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:46:29,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:46:29,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:46:29,625 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_c76ba999-3ac1-4841-b1a5-917cbfffbc76/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-13 13:46:29,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:46:29,638 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:46:29,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:46:29,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:46:29,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:46:29,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:46:29,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:46:29,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:46:29,658 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_c76ba999-3ac1-4841-b1a5-917cbfffbc76/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-13 13:46:29,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:46:29,672 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:46:29,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29 WrapperNode [2022-12-13 13:46:29,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:46:29,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:46:29,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:46:29,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:46:29,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,715 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 521 [2022-12-13 13:46:29,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:46:29,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:46:29,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:46:29,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:46:29,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:46:29,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:46:29,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:46:29,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:46:29,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (1/1) ... [2022-12-13 13:46:29,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:46:29,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:46:29,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:46:29,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:46:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 13:46:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 13:46:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 13:46:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:46:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:46:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:46:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:46:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:46:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:46:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:46:29,810 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:46:29,908 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:46:29,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:46:30,491 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:46:33,317 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:46:33,317 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:46:33,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:33 BoogieIcfgContainer [2022-12-13 13:46:33,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:46:33,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:46:33,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:46:33,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:46:33,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:46:29" (1/3) ... [2022-12-13 13:46:33,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20047a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:46:33, skipping insertion in model container [2022-12-13 13:46:33,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:29" (2/3) ... [2022-12-13 13:46:33,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20047a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:46:33, skipping insertion in model container [2022-12-13 13:46:33,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:33" (3/3) ... [2022-12-13 13:46:33,325 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-12-13 13:46:33,332 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:46:33,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:46:33,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2022-12-13 13:46:33,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:46:34,158 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 13:46:34,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 204 transitions, 432 flow [2022-12-13 13:46:34,433 INFO L130 PetriNetUnfolder]: 2/201 cut-off events. [2022-12-13 13:46:34,433 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 13:46:34,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 201 events. 2/201 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 501 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-12-13 13:46:34,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 204 transitions, 432 flow [2022-12-13 13:46:34,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 172 transitions, 359 flow [2022-12-13 13:46:34,447 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:46:34,459 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 172 transitions, 359 flow [2022-12-13 13:46:34,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 172 transitions, 359 flow [2022-12-13 13:46:34,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 172 transitions, 359 flow [2022-12-13 13:46:34,590 INFO L130 PetriNetUnfolder]: 0/172 cut-off events. [2022-12-13 13:46:34,590 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:46:34,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 172 events. 0/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 498 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 13:46:34,593 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2022-12-13 13:46:44,193 WARN L233 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 1316 DAG size of output: 677 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:46:59,669 WARN L233 SmtUtils]: Spent 13.31s on a formula simplification. DAG size of input: 1530 DAG size of output: 829 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:47:36,205 INFO L134 LiptonReduction]: Checked pairs total: 3619 [2022-12-13 13:47:36,206 INFO L136 LiptonReduction]: Total number of compositions: 86 [2022-12-13 13:47:36,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:47:36,219 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;@1b44033d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:47:36,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-12-13 13:47:36,221 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 13:47:36,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:47:36,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:47:36,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:47:36,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:47:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2603568, now seen corresponding path program 1 times [2022-12-13 13:47:36,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:36,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13974725] [2022-12-13 13:47:36,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:36,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:47:36,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:36,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13974725] [2022-12-13 13:47:36,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13974725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:36,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:36,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:47:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906000041] [2022-12-13 13:47:36,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:36,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:47:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:47:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:47:36,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 290 [2022-12-13 13:47:36,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:47:36,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:47:36,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 290 [2022-12-13 13:47:36,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:19,840 INFO L130 PetriNetUnfolder]: 29733/42766 cut-off events. [2022-12-13 13:48:19,840 INFO L131 PetriNetUnfolder]: For 954/954 co-relation queries the response was YES. [2022-12-13 13:48:19,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86565 conditions, 42766 events. 29733/42766 cut-off events. For 954/954 co-relation queries the response was YES. Maximal size of possible extension queue 5832. Compared 314799 event pairs, 29733 based on Foata normal form. 0/9294 useless extension candidates. Maximal degree in co-relation 82328. Up to 42767 conditions per place. [2022-12-13 13:48:20,024 INFO L137 encePairwiseOnDemand]: 266/290 looper letters, 62 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2022-12-13 13:48:20,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 263 flow [2022-12-13 13:48:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:48:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:48:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 326 transitions. [2022-12-13 13:48:20,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5620689655172414 [2022-12-13 13:48:20,035 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 326 transitions. [2022-12-13 13:48:20,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 326 transitions. [2022-12-13 13:48:20,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:20,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 326 transitions. [2022-12-13 13:48:20,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 163.0) internal successors, (326), 2 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 13:48:20,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:20,045 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:20,046 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 187 flow. Second operand 2 states and 326 transitions. [2022-12-13 13:48:20,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 263 flow [2022-12-13 13:48:20,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 254 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 13:48:20,080 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 130 flow [2022-12-13 13:48:20,082 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=130, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 13:48:20,084 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2022-12-13 13:48:20,084 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 130 flow [2022-12-13 13:48:20,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:20,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:20,085 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:48:20,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:48:20,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:48:20,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:20,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2603584, now seen corresponding path program 1 times [2022-12-13 13:48:20,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:20,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557970532] [2022-12-13 13:48:20,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:20,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:20,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:20,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557970532] [2022-12-13 13:48:20,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557970532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:20,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:20,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:48:20,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306995300] [2022-12-13 13:48:20,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:20,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:20,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:20,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:20,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:20,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:48:20,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:20,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:20,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:48:20,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:58,480 INFO L130 PetriNetUnfolder]: 26517/38182 cut-off events. [2022-12-13 13:48:58,481 INFO L131 PetriNetUnfolder]: For 289/289 co-relation queries the response was YES. [2022-12-13 13:48:58,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76963 conditions, 38182 events. 26517/38182 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 5203. Compared 277361 event pairs, 26517 based on Foata normal form. 0/8408 useless extension candidates. Maximal degree in co-relation 76960. Up to 38182 conditions per place. [2022-12-13 13:48:58,594 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 59 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2022-12-13 13:48:58,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 246 flow [2022-12-13 13:48:58,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:48:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2022-12-13 13:48:58,598 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4781609195402299 [2022-12-13 13:48:58,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2022-12-13 13:48:58,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2022-12-13 13:48:58,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:58,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2022-12-13 13:48:58,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:58,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:58,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:58,604 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 130 flow. Second operand 3 states and 416 transitions. [2022-12-13 13:48:58,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 246 flow [2022-12-13 13:48:58,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:58,605 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 128 flow [2022-12-13 13:48:58,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2022-12-13 13:48:58,606 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2022-12-13 13:48:58,606 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 128 flow [2022-12-13 13:48:58,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:58,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:58,607 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:48:58,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:48:58,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:48:58,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:58,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2603585, now seen corresponding path program 1 times [2022-12-13 13:48:58,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:58,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963878455] [2022-12-13 13:48:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:58,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:58,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:58,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963878455] [2022-12-13 13:48:58,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963878455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:58,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:58,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:48:58,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013817955] [2022-12-13 13:48:58,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:58,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:58,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:58,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:58,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:48:58,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:58,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:58,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:48:58,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:49:32,000 INFO L130 PetriNetUnfolder]: 23485/33858 cut-off events. [2022-12-13 13:49:32,001 INFO L131 PetriNetUnfolder]: For 272/272 co-relation queries the response was YES. [2022-12-13 13:49:32,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68250 conditions, 33858 events. 23485/33858 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 4610. Compared 242242 event pairs, 23485 based on Foata normal form. 0/7566 useless extension candidates. Maximal degree in co-relation 68246. Up to 33858 conditions per place. [2022-12-13 13:49:32,109 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2022-12-13 13:49:32,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 240 flow [2022-12-13 13:49:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:49:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:49:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2022-12-13 13:49:32,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47586206896551725 [2022-12-13 13:49:32,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2022-12-13 13:49:32,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2022-12-13 13:49:32,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:49:32,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2022-12-13 13:49:32,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:32,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:32,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:32,114 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 128 flow. Second operand 3 states and 414 transitions. [2022-12-13 13:49:32,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 240 flow [2022-12-13 13:49:32,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:49:32,115 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 125 flow [2022-12-13 13:49:32,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2022-12-13 13:49:32,116 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2022-12-13 13:49:32,116 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 125 flow [2022-12-13 13:49:32,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:32,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:49:32,117 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:49:32,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:49:32,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:49:32,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:32,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2603587, now seen corresponding path program 1 times [2022-12-13 13:49:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:32,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579512173] [2022-12-13 13:49:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:32,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:49:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:49:32,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579512173] [2022-12-13 13:49:32,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579512173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:49:32,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:49:32,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:49:32,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876548612] [2022-12-13 13:49:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:49:32,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:49:32,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:32,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:49:32,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:49:32,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:49:32,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:32,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:49:32,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:49:32,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:50:00,267 INFO L130 PetriNetUnfolder]: 20847/30096 cut-off events. [2022-12-13 13:50:00,267 INFO L131 PetriNetUnfolder]: For 256/256 co-relation queries the response was YES. [2022-12-13 13:50:00,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60694 conditions, 30096 events. 20847/30096 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 4082. Compared 212731 event pairs, 20847 based on Foata normal form. 0/6836 useless extension candidates. Maximal degree in co-relation 60690. Up to 30096 conditions per place. [2022-12-13 13:50:00,352 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 55 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2022-12-13 13:50:00,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 233 flow [2022-12-13 13:50:00,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:50:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:50:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2022-12-13 13:50:00,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4735632183908046 [2022-12-13 13:50:00,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2022-12-13 13:50:00,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2022-12-13 13:50:00,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:50:00,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2022-12-13 13:50:00,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:00,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:00,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:00,358 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 125 flow. Second operand 3 states and 412 transitions. [2022-12-13 13:50:00,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 233 flow [2022-12-13 13:50:00,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 56 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:50:00,359 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 122 flow [2022-12-13 13:50:00,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2022-12-13 13:50:00,360 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -30 predicate places. [2022-12-13 13:50:00,360 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 122 flow [2022-12-13 13:50:00,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:00,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:50:00,361 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:50:00,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:50:00,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:50:00,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:50:00,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2603588, now seen corresponding path program 1 times [2022-12-13 13:50:00,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:50:00,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677626472] [2022-12-13 13:50:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:50:00,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:50:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:50:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:50:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:50:00,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677626472] [2022-12-13 13:50:00,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677626472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:50:00,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:50:00,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:50:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193861313] [2022-12-13 13:50:00,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:50:00,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:50:00,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:50:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:50:00,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:50:00,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:50:00,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:00,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:50:00,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:50:00,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:50:23,545 INFO L130 PetriNetUnfolder]: 18365/26554 cut-off events. [2022-12-13 13:50:23,545 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2022-12-13 13:50:23,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53578 conditions, 26554 events. 18365/26554 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 185231 event pairs, 18365 based on Foata normal form. 0/6142 useless extension candidates. Maximal degree in co-relation 53574. Up to 26554 conditions per place. [2022-12-13 13:50:23,620 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2022-12-13 13:50:23,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 226 flow [2022-12-13 13:50:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:50:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:50:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2022-12-13 13:50:23,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47126436781609193 [2022-12-13 13:50:23,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2022-12-13 13:50:23,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2022-12-13 13:50:23,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:50:23,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2022-12-13 13:50:23,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:23,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:23,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:23,626 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 122 flow. Second operand 3 states and 410 transitions. [2022-12-13 13:50:23,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 226 flow [2022-12-13 13:50:23,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:50:23,628 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 119 flow [2022-12-13 13:50:23,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2022-12-13 13:50:23,629 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -31 predicate places. [2022-12-13 13:50:23,629 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 119 flow [2022-12-13 13:50:23,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:23,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:50:23,630 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:50:23,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:50:23,630 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:50:23,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:50:23,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2603590, now seen corresponding path program 1 times [2022-12-13 13:50:23,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:50:23,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066085012] [2022-12-13 13:50:23,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:50:23,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:50:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:50:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:50:23,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:50:23,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066085012] [2022-12-13 13:50:23,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066085012] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:50:23,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:50:23,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:50:23,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978715738] [2022-12-13 13:50:23,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:50:23,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:50:23,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:50:23,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:50:23,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:50:23,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:50:23,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:23,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:50:23,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:50:23,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:50:43,421 INFO L130 PetriNetUnfolder]: 15991/23160 cut-off events. [2022-12-13 13:50:43,421 INFO L131 PetriNetUnfolder]: For 225/225 co-relation queries the response was YES. [2022-12-13 13:50:43,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46732 conditions, 23160 events. 15991/23160 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 3123. Compared 159361 event pairs, 15991 based on Foata normal form. 0/5458 useless extension candidates. Maximal degree in co-relation 46728. Up to 23160 conditions per place. [2022-12-13 13:50:43,484 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 51 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2022-12-13 13:50:43,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 219 flow [2022-12-13 13:50:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:50:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:50:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions. [2022-12-13 13:50:43,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4689655172413793 [2022-12-13 13:50:43,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 408 transitions. [2022-12-13 13:50:43,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 408 transitions. [2022-12-13 13:50:43,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:50:43,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 408 transitions. [2022-12-13 13:50:43,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:43,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:43,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:43,489 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 119 flow. Second operand 3 states and 408 transitions. [2022-12-13 13:50:43,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 219 flow [2022-12-13 13:50:43,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:50:43,490 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 116 flow [2022-12-13 13:50:43,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2022-12-13 13:50:43,491 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-13 13:50:43,491 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 116 flow [2022-12-13 13:50:43,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:43,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:50:43,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:50:43,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:50:43,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:50:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:50:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2603591, now seen corresponding path program 1 times [2022-12-13 13:50:43,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:50:43,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590597608] [2022-12-13 13:50:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:50:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:50:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:50:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:50:43,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:50:43,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590597608] [2022-12-13 13:50:43,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590597608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:50:43,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:50:43,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:50:43,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061708279] [2022-12-13 13:50:43,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:50:43,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:50:43,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:50:43,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:50:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:50:43,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:50:43,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:43,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:50:43,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:50:43,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:50:59,807 INFO L130 PetriNetUnfolder]: 13781/19998 cut-off events. [2022-12-13 13:50:59,807 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2022-12-13 13:50:59,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40354 conditions, 19998 events. 13781/19998 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 2692. Compared 135208 event pairs, 13781 based on Foata normal form. 0/4814 useless extension candidates. Maximal degree in co-relation 40350. Up to 19998 conditions per place. [2022-12-13 13:50:59,861 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 49 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2022-12-13 13:50:59,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 50 transitions, 212 flow [2022-12-13 13:50:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:50:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:50:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2022-12-13 13:50:59,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2022-12-13 13:50:59,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2022-12-13 13:50:59,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2022-12-13 13:50:59,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:50:59,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2022-12-13 13:50:59,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:59,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:59,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:59,865 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 116 flow. Second operand 3 states and 406 transitions. [2022-12-13 13:50:59,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 50 transitions, 212 flow [2022-12-13 13:50:59,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:50:59,866 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 113 flow [2022-12-13 13:50:59,866 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2022-12-13 13:50:59,866 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -33 predicate places. [2022-12-13 13:50:59,867 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 113 flow [2022-12-13 13:50:59,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:59,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:50:59,867 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:50:59,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:50:59,867 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:50:59,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:50:59,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2603569, now seen corresponding path program 1 times [2022-12-13 13:50:59,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:50:59,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185818187] [2022-12-13 13:50:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:50:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:50:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:50:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:50:59,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:50:59,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185818187] [2022-12-13 13:50:59,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185818187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:50:59,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:50:59,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:50:59,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754170903] [2022-12-13 13:50:59,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:50:59,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:50:59,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:50:59,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:50:59,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:50:59,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:50:59,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:59,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:50:59,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:50:59,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:51:14,625 INFO L130 PetriNetUnfolder]: 11889/17290 cut-off events. [2022-12-13 13:51:14,625 INFO L131 PetriNetUnfolder]: For 196/196 co-relation queries the response was YES. [2022-12-13 13:51:14,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34910 conditions, 17290 events. 11889/17290 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 2314. Compared 114614 event pairs, 11889 based on Foata normal form. 0/4262 useless extension candidates. Maximal degree in co-relation 34906. Up to 17290 conditions per place. [2022-12-13 13:51:14,669 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 47 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2022-12-13 13:51:14,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 205 flow [2022-12-13 13:51:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:51:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:51:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2022-12-13 13:51:14,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46436781609195404 [2022-12-13 13:51:14,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2022-12-13 13:51:14,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2022-12-13 13:51:14,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:51:14,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2022-12-13 13:51:14,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:14,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:14,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:14,673 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 113 flow. Second operand 3 states and 404 transitions. [2022-12-13 13:51:14,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 205 flow [2022-12-13 13:51:14,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:51:14,674 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 110 flow [2022-12-13 13:51:14,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2022-12-13 13:51:14,675 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-12-13 13:51:14,675 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 110 flow [2022-12-13 13:51:14,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:14,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:51:14,675 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:51:14,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:51:14,675 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:51:14,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:51:14,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2603570, now seen corresponding path program 1 times [2022-12-13 13:51:14,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:51:14,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794390200] [2022-12-13 13:51:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:51:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:51:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:51:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:51:14,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:51:14,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794390200] [2022-12-13 13:51:14,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794390200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:51:14,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:51:14,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:51:14,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256528755] [2022-12-13 13:51:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:51:14,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:51:14,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:51:14,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:51:14,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:51:14,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:51:14,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:14,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:51:14,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:51:14,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:51:28,057 INFO L130 PetriNetUnfolder]: 10133/14774 cut-off events. [2022-12-13 13:51:28,057 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2022-12-13 13:51:28,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29850 conditions, 14774 events. 10133/14774 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 96368 event pairs, 10133 based on Foata normal form. 0/3742 useless extension candidates. Maximal degree in co-relation 29846. Up to 14774 conditions per place. [2022-12-13 13:51:28,092 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 45 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2022-12-13 13:51:28,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 198 flow [2022-12-13 13:51:28,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:51:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:51:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2022-12-13 13:51:28,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2022-12-13 13:51:28,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2022-12-13 13:51:28,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2022-12-13 13:51:28,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:51:28,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2022-12-13 13:51:28,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:28,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:28,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:28,096 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 110 flow. Second operand 3 states and 402 transitions. [2022-12-13 13:51:28,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 198 flow [2022-12-13 13:51:28,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 46 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:51:28,097 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 107 flow [2022-12-13 13:51:28,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2022-12-13 13:51:28,098 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -35 predicate places. [2022-12-13 13:51:28,098 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 107 flow [2022-12-13 13:51:28,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:28,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:51:28,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:51:28,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:51:28,099 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:51:28,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:51:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2603572, now seen corresponding path program 1 times [2022-12-13 13:51:28,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:51:28,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133468814] [2022-12-13 13:51:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:51:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:51:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:51:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:51:28,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:51:28,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133468814] [2022-12-13 13:51:28,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133468814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:51:28,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:51:28,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:51:28,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410065211] [2022-12-13 13:51:28,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:51:28,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:51:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:51:28,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:51:28,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:51:28,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:51:28,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:28,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:51:28,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:51:28,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:51:39,519 INFO L130 PetriNetUnfolder]: 8481/12402 cut-off events. [2022-12-13 13:51:39,519 INFO L131 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2022-12-13 13:51:39,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25060 conditions, 12402 events. 8481/12402 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 1643. Compared 79436 event pairs, 8481 based on Foata normal form. 0/3236 useless extension candidates. Maximal degree in co-relation 25056. Up to 12402 conditions per place. [2022-12-13 13:51:39,548 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 43 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2022-12-13 13:51:39,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 191 flow [2022-12-13 13:51:39,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:51:39,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:51:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2022-12-13 13:51:39,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45977011494252873 [2022-12-13 13:51:39,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2022-12-13 13:51:39,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2022-12-13 13:51:39,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:51:39,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2022-12-13 13:51:39,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:39,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:39,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:39,552 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 107 flow. Second operand 3 states and 400 transitions. [2022-12-13 13:51:39,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 191 flow [2022-12-13 13:51:39,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 44 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:51:39,553 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 104 flow [2022-12-13 13:51:39,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-12-13 13:51:39,554 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -36 predicate places. [2022-12-13 13:51:39,554 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 104 flow [2022-12-13 13:51:39,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:39,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:51:39,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:51:39,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:51:39,554 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:51:39,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:51:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2603573, now seen corresponding path program 1 times [2022-12-13 13:51:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:51:39,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945845867] [2022-12-13 13:51:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:51:39,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:51:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:51:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:51:39,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:51:39,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945845867] [2022-12-13 13:51:39,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945845867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:51:39,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:51:39,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:51:39,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218143804] [2022-12-13 13:51:39,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:51:39,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:51:39,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:51:39,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:51:39,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:51:39,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:51:39,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:39,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:51:39,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:51:39,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:51:49,295 INFO L130 PetriNetUnfolder]: 6973/10234 cut-off events. [2022-12-13 13:51:49,295 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-12-13 13:51:49,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20682 conditions, 10234 events. 6973/10234 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1350. Compared 64024 event pairs, 6973 based on Foata normal form. 0/2766 useless extension candidates. Maximal degree in co-relation 20678. Up to 10234 conditions per place. [2022-12-13 13:51:49,317 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2022-12-13 13:51:49,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 184 flow [2022-12-13 13:51:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:51:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:51:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2022-12-13 13:51:49,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4574712643678161 [2022-12-13 13:51:49,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2022-12-13 13:51:49,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2022-12-13 13:51:49,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:51:49,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2022-12-13 13:51:49,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:49,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:49,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:49,321 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 104 flow. Second operand 3 states and 398 transitions. [2022-12-13 13:51:49,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 184 flow [2022-12-13 13:51:49,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 42 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:51:49,322 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 101 flow [2022-12-13 13:51:49,322 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2022-12-13 13:51:49,322 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -37 predicate places. [2022-12-13 13:51:49,322 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 101 flow [2022-12-13 13:51:49,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:49,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:51:49,322 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:51:49,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:51:49,322 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:51:49,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:51:49,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2603575, now seen corresponding path program 1 times [2022-12-13 13:51:49,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:51:49,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801273604] [2022-12-13 13:51:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:51:49,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:51:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:51:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:51:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:51:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801273604] [2022-12-13 13:51:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801273604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:51:49,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:51:49,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:51:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789188100] [2022-12-13 13:51:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:51:49,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:51:49,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:51:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:51:49,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:51:49,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:51:49,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:49,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:51:49,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:51:49,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:51:57,636 INFO L130 PetriNetUnfolder]: 5707/8412 cut-off events. [2022-12-13 13:51:57,636 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 13:51:57,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17014 conditions, 8412 events. 5707/8412 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 51337 event pairs, 5707 based on Foata normal form. 0/2368 useless extension candidates. Maximal degree in co-relation 17010. Up to 8412 conditions per place. [2022-12-13 13:51:57,654 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 39 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2022-12-13 13:51:57,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 40 transitions, 177 flow [2022-12-13 13:51:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:51:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:51:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2022-12-13 13:51:57,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45517241379310347 [2022-12-13 13:51:57,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2022-12-13 13:51:57,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2022-12-13 13:51:57,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:51:57,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2022-12-13 13:51:57,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:57,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:57,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:57,657 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 101 flow. Second operand 3 states and 396 transitions. [2022-12-13 13:51:57,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 40 transitions, 177 flow [2022-12-13 13:51:57,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 40 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:51:57,658 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 98 flow [2022-12-13 13:51:57,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2022-12-13 13:51:57,659 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -38 predicate places. [2022-12-13 13:51:57,659 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 98 flow [2022-12-13 13:51:57,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:57,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:51:57,659 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:51:57,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:51:57,659 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:51:57,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:51:57,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2603576, now seen corresponding path program 1 times [2022-12-13 13:51:57,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:51:57,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336571036] [2022-12-13 13:51:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:51:57,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:51:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:51:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:51:57,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:51:57,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336571036] [2022-12-13 13:51:57,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336571036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:51:57,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:51:57,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:51:57,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753358926] [2022-12-13 13:51:57,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:51:57,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:51:57,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:51:57,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:51:57,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:51:57,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:51:57,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:57,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:51:57,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:51:57,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:04,623 INFO L130 PetriNetUnfolder]: 4557/6754 cut-off events. [2022-12-13 13:52:04,623 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2022-12-13 13:52:04,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13674 conditions, 6754 events. 4557/6754 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 40099 event pairs, 4557 based on Foata normal form. 0/1998 useless extension candidates. Maximal degree in co-relation 13670. Up to 6754 conditions per place. [2022-12-13 13:52:04,641 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2022-12-13 13:52:04,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 170 flow [2022-12-13 13:52:04,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-12-13 13:52:04,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4528735632183908 [2022-12-13 13:52:04,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-12-13 13:52:04,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-12-13 13:52:04,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:04,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-12-13 13:52:04,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:04,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:04,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:04,645 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 98 flow. Second operand 3 states and 394 transitions. [2022-12-13 13:52:04,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 170 flow [2022-12-13 13:52:04,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 38 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:04,646 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 95 flow [2022-12-13 13:52:04,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2022-12-13 13:52:04,646 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -39 predicate places. [2022-12-13 13:52:04,646 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 95 flow [2022-12-13 13:52:04,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:04,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:04,646 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:52:04,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:52:04,647 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:04,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:04,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2603578, now seen corresponding path program 1 times [2022-12-13 13:52:04,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:04,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708428983] [2022-12-13 13:52:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:04,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:04,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:04,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708428983] [2022-12-13 13:52:04,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708428983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:04,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:04,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:04,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034947810] [2022-12-13 13:52:04,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:04,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:04,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:04,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:04,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:04,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:04,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:04,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:04,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:04,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:10,509 INFO L130 PetriNetUnfolder]: 3507/5236 cut-off events. [2022-12-13 13:52:10,509 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-12-13 13:52:10,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10604 conditions, 5236 events. 3507/5236 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 30104 event pairs, 3507 based on Foata normal form. 0/1646 useless extension candidates. Maximal degree in co-relation 10600. Up to 5236 conditions per place. [2022-12-13 13:52:10,520 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2022-12-13 13:52:10,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 163 flow [2022-12-13 13:52:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:10,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:10,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-12-13 13:52:10,522 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45057471264367815 [2022-12-13 13:52:10,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2022-12-13 13:52:10,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2022-12-13 13:52:10,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:10,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2022-12-13 13:52:10,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:10,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:10,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:10,524 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 95 flow. Second operand 3 states and 392 transitions. [2022-12-13 13:52:10,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 163 flow [2022-12-13 13:52:10,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 36 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:10,524 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 92 flow [2022-12-13 13:52:10,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2022-12-13 13:52:10,525 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -40 predicate places. [2022-12-13 13:52:10,525 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 92 flow [2022-12-13 13:52:10,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:10,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:10,525 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:52:10,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 13:52:10,525 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:10,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2603579, now seen corresponding path program 1 times [2022-12-13 13:52:10,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:10,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400827165] [2022-12-13 13:52:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:10,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:10,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400827165] [2022-12-13 13:52:10,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400827165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:10,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:10,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:10,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6176565] [2022-12-13 13:52:10,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:10,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:10,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:10,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:10,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:10,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:10,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:15,358 INFO L130 PetriNetUnfolder]: 2581/3894 cut-off events. [2022-12-13 13:52:15,358 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-12-13 13:52:15,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7890 conditions, 3894 events. 2581/3894 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 21727 event pairs, 2581 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 7886. Up to 3894 conditions per place. [2022-12-13 13:52:15,367 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2022-12-13 13:52:15,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 34 transitions, 156 flow [2022-12-13 13:52:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2022-12-13 13:52:15,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2022-12-13 13:52:15,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2022-12-13 13:52:15,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2022-12-13 13:52:15,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:15,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2022-12-13 13:52:15,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:15,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:15,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:15,370 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 92 flow. Second operand 3 states and 390 transitions. [2022-12-13 13:52:15,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 34 transitions, 156 flow [2022-12-13 13:52:15,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 34 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:15,370 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 89 flow [2022-12-13 13:52:15,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2022-12-13 13:52:15,371 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -41 predicate places. [2022-12-13 13:52:15,371 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 89 flow [2022-12-13 13:52:15,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:15,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:15,371 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:52:15,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 13:52:15,371 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2603581, now seen corresponding path program 1 times [2022-12-13 13:52:15,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:15,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106808983] [2022-12-13 13:52:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:15,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:15,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106808983] [2022-12-13 13:52:15,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106808983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:15,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:15,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799162604] [2022-12-13 13:52:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:15,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:15,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:15,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:15,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:15,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:15,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:15,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:15,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:18,568 INFO L130 PetriNetUnfolder]: 1821/2790 cut-off events. [2022-12-13 13:52:18,568 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2022-12-13 13:52:18,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5662 conditions, 2790 events. 1821/2790 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 14934 event pairs, 1821 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 5658. Up to 2790 conditions per place. [2022-12-13 13:52:18,574 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2022-12-13 13:52:18,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 32 transitions, 149 flow [2022-12-13 13:52:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:18,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-12-13 13:52:18,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4459770114942529 [2022-12-13 13:52:18,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-12-13 13:52:18,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-12-13 13:52:18,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:18,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-12-13 13:52:18,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:18,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:18,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:18,577 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 89 flow. Second operand 3 states and 388 transitions. [2022-12-13 13:52:18,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 32 transitions, 149 flow [2022-12-13 13:52:18,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 32 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:18,578 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 86 flow [2022-12-13 13:52:18,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2022-12-13 13:52:18,578 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -42 predicate places. [2022-12-13 13:52:18,578 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 86 flow [2022-12-13 13:52:18,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:18,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:18,579 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:52:18,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 13:52:18,579 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:18,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:18,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2603582, now seen corresponding path program 1 times [2022-12-13 13:52:18,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:18,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128010289] [2022-12-13 13:52:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:18,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:18,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128010289] [2022-12-13 13:52:18,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128010289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:18,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:18,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:18,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127477858] [2022-12-13 13:52:18,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:18,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:18,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:18,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:18,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:18,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:18,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:18,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:18,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:18,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:20,676 INFO L130 PetriNetUnfolder]: 1157/1822 cut-off events. [2022-12-13 13:52:20,677 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2022-12-13 13:52:20,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3706 conditions, 1822 events. 1157/1822 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 9253 event pairs, 1157 based on Foata normal form. 0/814 useless extension candidates. Maximal degree in co-relation 3702. Up to 1822 conditions per place. [2022-12-13 13:52:20,681 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2022-12-13 13:52:20,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 142 flow [2022-12-13 13:52:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:20,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-12-13 13:52:20,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4436781609195402 [2022-12-13 13:52:20,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-12-13 13:52:20,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-12-13 13:52:20,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:20,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-12-13 13:52:20,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:20,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:20,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:20,687 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 86 flow. Second operand 3 states and 386 transitions. [2022-12-13 13:52:20,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 142 flow [2022-12-13 13:52:20,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 30 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:20,688 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 83 flow [2022-12-13 13:52:20,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2022-12-13 13:52:20,688 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -43 predicate places. [2022-12-13 13:52:20,689 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 83 flow [2022-12-13 13:52:20,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:20,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:20,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:20,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 13:52:20,689 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702694, now seen corresponding path program 1 times [2022-12-13 13:52:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:20,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868114749] [2022-12-13 13:52:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:20,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:20,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:20,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868114749] [2022-12-13 13:52:20,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868114749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:20,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:20,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:20,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785601264] [2022-12-13 13:52:20,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:20,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:20,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:20,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:20,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:20,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:20,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:20,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:20,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:20,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:22,676 INFO L130 PetriNetUnfolder]: 933/1478 cut-off events. [2022-12-13 13:52:22,676 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 13:52:22,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3015 conditions, 1478 events. 933/1478 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7211 event pairs, 933 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 3011. Up to 1478 conditions per place. [2022-12-13 13:52:22,679 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2022-12-13 13:52:22,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 28 transitions, 135 flow [2022-12-13 13:52:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:22,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-12-13 13:52:22,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4413793103448276 [2022-12-13 13:52:22,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-12-13 13:52:22,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-12-13 13:52:22,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:22,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-12-13 13:52:22,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:22,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:22,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:22,682 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 83 flow. Second operand 3 states and 384 transitions. [2022-12-13 13:52:22,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 28 transitions, 135 flow [2022-12-13 13:52:22,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 28 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:22,683 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 80 flow [2022-12-13 13:52:22,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2022-12-13 13:52:22,683 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -44 predicate places. [2022-12-13 13:52:22,683 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 80 flow [2022-12-13 13:52:22,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:22,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:22,683 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:22,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 13:52:22,684 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:22,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:22,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702693, now seen corresponding path program 1 times [2022-12-13 13:52:22,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:22,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954247385] [2022-12-13 13:52:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:22,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:22,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:22,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954247385] [2022-12-13 13:52:22,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954247385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:22,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:22,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:22,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909656428] [2022-12-13 13:52:22,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:22,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:22,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:22,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:22,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:22,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:22,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:22,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:22,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:22,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:24,671 INFO L130 PetriNetUnfolder]: 733/1170 cut-off events. [2022-12-13 13:52:24,672 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2022-12-13 13:52:24,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1170 events. 733/1170 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5435 event pairs, 733 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 2392. Up to 1170 conditions per place. [2022-12-13 13:52:24,674 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2022-12-13 13:52:24,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 26 transitions, 128 flow [2022-12-13 13:52:24,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:24,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2022-12-13 13:52:24,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43908045977011495 [2022-12-13 13:52:24,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2022-12-13 13:52:24,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2022-12-13 13:52:24,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:24,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2022-12-13 13:52:24,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:24,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:24,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:24,677 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 80 flow. Second operand 3 states and 382 transitions. [2022-12-13 13:52:24,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 26 transitions, 128 flow [2022-12-13 13:52:24,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 26 transitions, 127 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:24,678 INFO L231 Difference]: Finished difference. Result has 51 places, 26 transitions, 77 flow [2022-12-13 13:52:24,678 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=51, PETRI_TRANSITIONS=26} [2022-12-13 13:52:24,678 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -45 predicate places. [2022-12-13 13:52:24,678 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 26 transitions, 77 flow [2022-12-13 13:52:24,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:24,678 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:24,678 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:24,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 13:52:24,678 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:24,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702688, now seen corresponding path program 1 times [2022-12-13 13:52:24,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:24,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517975475] [2022-12-13 13:52:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:24,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:24,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:24,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517975475] [2022-12-13 13:52:24,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517975475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:24,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:24,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:24,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444164769] [2022-12-13 13:52:24,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:24,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:24,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:24,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:24,722 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:24,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 26 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:24,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:24,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:24,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:26,063 INFO L130 PetriNetUnfolder]: 557/898 cut-off events. [2022-12-13 13:52:26,063 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 13:52:26,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 898 events. 557/898 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3973 event pairs, 557 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1845. Up to 898 conditions per place. [2022-12-13 13:52:26,065 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2022-12-13 13:52:26,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 121 flow [2022-12-13 13:52:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2022-12-13 13:52:26,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4367816091954023 [2022-12-13 13:52:26,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2022-12-13 13:52:26,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2022-12-13 13:52:26,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:26,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2022-12-13 13:52:26,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:26,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:26,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:26,068 INFO L175 Difference]: Start difference. First operand has 51 places, 26 transitions, 77 flow. Second operand 3 states and 380 transitions. [2022-12-13 13:52:26,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 121 flow [2022-12-13 13:52:26,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 24 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:26,068 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 74 flow [2022-12-13 13:52:26,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2022-12-13 13:52:26,069 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -46 predicate places. [2022-12-13 13:52:26,069 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 74 flow [2022-12-13 13:52:26,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:26,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:26,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:26,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 13:52:26,069 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:26,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702687, now seen corresponding path program 1 times [2022-12-13 13:52:26,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:26,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300809702] [2022-12-13 13:52:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:26,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:26,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:26,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300809702] [2022-12-13 13:52:26,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300809702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:26,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:26,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:26,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689939181] [2022-12-13 13:52:26,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:26,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:26,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:26,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:26,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:26,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:26,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 24 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:26,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:26,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:26,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:27,255 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2022-12-13 13:52:27,256 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 13:52:27,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 662 events. 405/662 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2729 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1370. Up to 662 conditions per place. [2022-12-13 13:52:27,258 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2022-12-13 13:52:27,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 22 transitions, 114 flow [2022-12-13 13:52:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2022-12-13 13:52:27,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43448275862068964 [2022-12-13 13:52:27,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2022-12-13 13:52:27,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2022-12-13 13:52:27,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:27,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2022-12-13 13:52:27,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:27,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:27,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:27,261 INFO L175 Difference]: Start difference. First operand has 50 places, 24 transitions, 74 flow. Second operand 3 states and 378 transitions. [2022-12-13 13:52:27,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 22 transitions, 114 flow [2022-12-13 13:52:27,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 22 transitions, 113 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:27,261 INFO L231 Difference]: Finished difference. Result has 49 places, 22 transitions, 71 flow [2022-12-13 13:52:27,261 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=49, PETRI_TRANSITIONS=22} [2022-12-13 13:52:27,262 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2022-12-13 13:52:27,262 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 22 transitions, 71 flow [2022-12-13 13:52:27,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:27,262 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:27,262 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:27,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 13:52:27,262 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:27,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:27,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702682, now seen corresponding path program 1 times [2022-12-13 13:52:27,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:27,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966829117] [2022-12-13 13:52:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:27,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:27,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966829117] [2022-12-13 13:52:27,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966829117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:27,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:27,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:27,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258936466] [2022-12-13 13:52:27,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:27,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:27,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:27,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:27,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:27,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 22 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:27,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:27,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:27,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:28,426 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2022-12-13 13:52:28,426 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 13:52:28,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 462 events. 277/462 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1758 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 967. Up to 462 conditions per place. [2022-12-13 13:52:28,427 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2022-12-13 13:52:28,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 20 transitions, 107 flow [2022-12-13 13:52:28,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2022-12-13 13:52:28,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.432183908045977 [2022-12-13 13:52:28,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2022-12-13 13:52:28,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2022-12-13 13:52:28,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:28,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2022-12-13 13:52:28,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:28,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:28,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:28,430 INFO L175 Difference]: Start difference. First operand has 49 places, 22 transitions, 71 flow. Second operand 3 states and 376 transitions. [2022-12-13 13:52:28,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 20 transitions, 107 flow [2022-12-13 13:52:28,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 20 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:28,430 INFO L231 Difference]: Finished difference. Result has 48 places, 20 transitions, 68 flow [2022-12-13 13:52:28,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=48, PETRI_TRANSITIONS=20} [2022-12-13 13:52:28,430 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -48 predicate places. [2022-12-13 13:52:28,431 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 20 transitions, 68 flow [2022-12-13 13:52:28,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:28,431 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:28,431 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:28,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 13:52:28,431 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702681, now seen corresponding path program 1 times [2022-12-13 13:52:28,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:28,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156704290] [2022-12-13 13:52:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:28,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:28,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156704290] [2022-12-13 13:52:28,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156704290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:28,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:28,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:28,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2221899] [2022-12-13 13:52:28,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:28,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:28,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:28,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:28,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 20 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:28,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:28,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:28,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:29,164 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2022-12-13 13:52:29,164 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-13 13:52:29,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1003 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 636. Up to 298 conditions per place. [2022-12-13 13:52:29,165 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2022-12-13 13:52:29,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 18 transitions, 100 flow [2022-12-13 13:52:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-12-13 13:52:29,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4298850574712644 [2022-12-13 13:52:29,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-12-13 13:52:29,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-12-13 13:52:29,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:29,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-12-13 13:52:29,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,168 INFO L175 Difference]: Start difference. First operand has 48 places, 20 transitions, 68 flow. Second operand 3 states and 374 transitions. [2022-12-13 13:52:29,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 18 transitions, 100 flow [2022-12-13 13:52:29,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 18 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:29,168 INFO L231 Difference]: Finished difference. Result has 47 places, 18 transitions, 65 flow [2022-12-13 13:52:29,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=47, PETRI_TRANSITIONS=18} [2022-12-13 13:52:29,169 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2022-12-13 13:52:29,169 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 18 transitions, 65 flow [2022-12-13 13:52:29,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:29,169 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:29,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 13:52:29,169 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:29,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702676, now seen corresponding path program 1 times [2022-12-13 13:52:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:29,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739477263] [2022-12-13 13:52:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:29,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:29,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:29,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739477263] [2022-12-13 13:52:29,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739477263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:29,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:29,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:29,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875108688] [2022-12-13 13:52:29,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:29,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:29,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:29,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:29,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:29,221 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:29,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 18 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:29,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:29,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:29,601 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2022-12-13 13:52:29,602 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 13:52:29,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 470 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 377. Up to 170 conditions per place. [2022-12-13 13:52:29,602 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-12-13 13:52:29,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 93 flow [2022-12-13 13:52:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2022-12-13 13:52:29,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42758620689655175 [2022-12-13 13:52:29,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2022-12-13 13:52:29,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2022-12-13 13:52:29,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:29,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2022-12-13 13:52:29,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,605 INFO L175 Difference]: Start difference. First operand has 47 places, 18 transitions, 65 flow. Second operand 3 states and 372 transitions. [2022-12-13 13:52:29,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 93 flow [2022-12-13 13:52:29,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 16 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:29,605 INFO L231 Difference]: Finished difference. Result has 46 places, 16 transitions, 62 flow [2022-12-13 13:52:29,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=46, PETRI_TRANSITIONS=16} [2022-12-13 13:52:29,605 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -50 predicate places. [2022-12-13 13:52:29,606 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 16 transitions, 62 flow [2022-12-13 13:52:29,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:52:29,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:52:29,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 13:52:29,606 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-13 13:52:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:52:29,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1792702675, now seen corresponding path program 1 times [2022-12-13 13:52:29,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:52:29,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398439517] [2022-12-13 13:52:29,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:52:29,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:52:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:52:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:52:29,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:52:29,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398439517] [2022-12-13 13:52:29,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398439517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:52:29,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:52:29,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:52:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453461251] [2022-12-13 13:52:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:52:29,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:52:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:52:29,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:52:29,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:52:29,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 13:52:29,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 16 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:52:29,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 13:52:29,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:52:29,917 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2022-12-13 13:52:29,917 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:52:29,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 190. Up to 78 conditions per place. [2022-12-13 13:52:29,918 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-12-13 13:52:29,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 14 transitions, 86 flow [2022-12-13 13:52:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:52:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:52:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2022-12-13 13:52:29,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42528735632183906 [2022-12-13 13:52:29,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2022-12-13 13:52:29,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2022-12-13 13:52:29,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:52:29,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2022-12-13 13:52:29,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,920 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,920 INFO L175 Difference]: Start difference. First operand has 46 places, 16 transitions, 62 flow. Second operand 3 states and 370 transitions. [2022-12-13 13:52:29,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 14 transitions, 86 flow [2022-12-13 13:52:29,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 14 transitions, 85 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:52:29,920 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2022-12-13 13:52:29,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2022-12-13 13:52:29,921 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -51 predicate places. [2022-12-13 13:52:29,921 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2022-12-13 13:52:29,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 147 remaining) [2022-12-13 13:52:29,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 147 remaining) [2022-12-13 13:52:29,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 147 remaining) [2022-12-13 13:52:29,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 147 remaining) [2022-12-13 13:52:29,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 147 remaining) [2022-12-13 13:52:29,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 147 remaining) [2022-12-13 13:52:29,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 147 remaining) [2022-12-13 13:52:29,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 147 remaining) [2022-12-13 13:52:29,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 147 remaining) [2022-12-13 13:52:29,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 147 remaining) [2022-12-13 13:52:29,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 147 remaining) [2022-12-13 13:52:29,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 147 remaining) [2022-12-13 13:52:29,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 147 remaining) [2022-12-13 13:52:29,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 13:52:29,932 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:52:29,936 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:52:29,936 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:52:29,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:52:29 BasicIcfg [2022-12-13 13:52:29,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:52:29,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:52:29,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:52:29,939 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:52:29,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:33" (3/4) ... [2022-12-13 13:52:29,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:52:29,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 13:52:29,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 13:52:29,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 13:52:29,947 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 13:52:29,948 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:52:29,948 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:52:29,948 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:52:29,970 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:52:29,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:52:29,970 INFO L158 Benchmark]: Toolchain (without parser) took 360493.63ms. Allocated memory was 121.6MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 83.7MB in the beginning and 2.1GB in the end (delta: -2.1GB). Peak memory consumption was 930.4MB. Max. memory is 16.1GB. [2022-12-13 13:52:29,970 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:52:29,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.22ms. Allocated memory is still 121.6MB. Free memory was 83.4MB in the beginning and 71.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:52:29,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.79ms. Allocated memory is still 121.6MB. Free memory was 71.1MB in the beginning and 67.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:52:29,971 INFO L158 Benchmark]: Boogie Preprocessor took 30.88ms. Allocated memory is still 121.6MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:52:29,971 INFO L158 Benchmark]: RCFGBuilder took 3571.20ms. Allocated memory was 121.6MB in the beginning and 274.7MB in the end (delta: 153.1MB). Free memory was 64.9MB in the beginning and 195.2MB in the end (delta: -130.3MB). Peak memory consumption was 171.4MB. Max. memory is 16.1GB. [2022-12-13 13:52:29,972 INFO L158 Benchmark]: TraceAbstraction took 356618.41ms. Allocated memory was 274.7MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 195.2MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2022-12-13 13:52:29,972 INFO L158 Benchmark]: Witness Printer took 30.78ms. Allocated memory is still 3.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:52:29,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.22ms. Allocated memory is still 121.6MB. Free memory was 83.4MB in the beginning and 71.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.79ms. Allocated memory is still 121.6MB. Free memory was 71.1MB in the beginning and 67.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.88ms. Allocated memory is still 121.6MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3571.20ms. Allocated memory was 121.6MB in the beginning and 274.7MB in the end (delta: 153.1MB). Free memory was 64.9MB in the beginning and 195.2MB in the end (delta: -130.3MB). Peak memory consumption was 171.4MB. Max. memory is 16.1GB. * TraceAbstraction took 356618.41ms. Allocated memory was 274.7MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 195.2MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 30.78ms. Allocated memory is still 3.1GB. Free memory was 2.1GB in the beginning and 2.1GB 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: 61.7s, 182 PlacesBefore, 96 PlacesAfterwards, 172 TransitionsBefore, 86 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 8 FixpointIterations, 68 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 86 TotalNumberOfCompositions, 3619 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3619, independent: 3619, independent conditional: 0, independent unconditional: 3619, 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: 1231, independent: 1231, independent conditional: 0, independent unconditional: 1231, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3619, independent: 2388, independent conditional: 0, independent unconditional: 2388, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1231, unknown conditional: 0, unknown unconditional: 1231] , Statistics on independence cache: Total cache size (in pairs): 303, Positive cache size: 303, Positive conditional cache size: 0, Positive unconditional cache size: 303, 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: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 290 locations, 147 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: 355.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 291.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 62.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 883 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 987 IncrementalHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 27 mSDtfsCounter, 987 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, InterpolantAutomatonStates: 74, 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, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 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 72 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:52:29,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76ba999-3ac1-4841-b1a5-917cbfffbc76/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