./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/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_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/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_221cad1f-7ba9-4760-a82d-188f39015c8b/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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- 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 15:36:39,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:36:39,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:36:39,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:36:39,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:36:39,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:36:39,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:36:39,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:36:39,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:36:39,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:36:39,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:36:39,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:36:39,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:36:39,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:36:39,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:36:39,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:36:39,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:36:39,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:36:39,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:36:39,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:36:39,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:36:39,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:36:39,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:36:39,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:36:39,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:36:39,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:36:39,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:36:39,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:36:39,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:36:39,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:36:39,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:36:39,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:36:39,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:36:39,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:36:39,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:36:39,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:36:39,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:36:39,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:36:39,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:36:39,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:36:39,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:36:39,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:36:39,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:36:39,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:36:39,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:36:39,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:36:39,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:36:39,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:36:39,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:36:39,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:36:39,818 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:36:39,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:36:39,819 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:36:39,819 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:36:39,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:36:39,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:36:39,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:36:39,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:36:39,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:36:39,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:36:39,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:36:39,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:36:39,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:36:39,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:36:39,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:36:39,822 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:36:39,822 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_221cad1f-7ba9-4760-a82d-188f39015c8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-12-13 15:36:39,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:36:40,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:36:40,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:36:40,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:36:40,009 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:36:40,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-12-13 15:36:42,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:36:42,718 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:36:42,718 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-12-13 15:36:42,723 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/data/fb2704b83/3dc846fd4d014185ad2233eac88c0bde/FLAG4b886e8e6 [2022-12-13 15:36:43,133 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/data/fb2704b83/3dc846fd4d014185ad2233eac88c0bde [2022-12-13 15:36:43,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:36:43,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:36:43,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:36:43,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:36:43,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:36:43,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3418cdf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43, skipping insertion in model container [2022-12-13 15:36:43,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:36:43,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:36:43,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,291 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_221cad1f-7ba9-4760-a82d-188f39015c8b/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-12-13 15:36:43,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:36:43,299 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:36:43,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:36:43,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:36:43,323 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_221cad1f-7ba9-4760-a82d-188f39015c8b/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-12-13 15:36:43,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:36:43,334 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:36:43,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43 WrapperNode [2022-12-13 15:36:43,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:36:43,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:36:43,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:36:43,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:36:43,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,365 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 258 [2022-12-13 15:36:43,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:36:43,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:36:43,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:36:43,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:36:43,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:36:43,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:36:43,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:36:43,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:36:43,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (1/1) ... [2022-12-13 15:36:43,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:36:43,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:43,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:36:43,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:36:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:36:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 15:36:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 15:36:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 15:36:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 15:36:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 15:36:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 15:36:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 15:36:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 15:36:43,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 15:36:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:36:43,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:36:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:36:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:36:43,440 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 15:36:43,528 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:36:43,529 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:36:43,810 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:36:43,936 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:36:43,936 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:36:43,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:36:43 BoogieIcfgContainer [2022-12-13 15:36:43,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:36:43,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:36:43,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:36:43,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:36:43,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:36:43" (1/3) ... [2022-12-13 15:36:43,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce0d72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:36:43, skipping insertion in model container [2022-12-13 15:36:43,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:43" (2/3) ... [2022-12-13 15:36:43,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce0d72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:36:43, skipping insertion in model container [2022-12-13 15:36:43,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:36:43" (3/3) ... [2022-12-13 15:36:43,943 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-12-13 15:36:43,950 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:36:43,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:36:43,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-12-13 15:36:43,957 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:36:44,011 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-13 15:36:44,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 184 transitions, 408 flow [2022-12-13 15:36:44,085 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-12-13 15:36:44,085 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 15:36:44,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 179 events. 2/179 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-12-13 15:36:44,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 184 transitions, 408 flow [2022-12-13 15:36:44,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 154 transitions, 335 flow [2022-12-13 15:36:44,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:36:44,103 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 154 transitions, 335 flow [2022-12-13 15:36:44,105 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 154 transitions, 335 flow [2022-12-13 15:36:44,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 154 transitions, 335 flow [2022-12-13 15:36:44,129 INFO L130 PetriNetUnfolder]: 1/154 cut-off events. [2022-12-13 15:36:44,129 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 15:36:44,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 154 events. 1/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-12-13 15:36:44,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 4234 [2022-12-13 15:36:48,694 INFO L134 LiptonReduction]: Checked pairs total: 23550 [2022-12-13 15:36:48,694 INFO L136 LiptonReduction]: Total number of compositions: 99 [2022-12-13 15:36:48,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:36:48,712 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;@6d61047, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:36:48,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2022-12-13 15:36:48,715 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 15:36:48,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:36:48,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:36:48,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:36:48,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:36:48,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:48,720 INFO L85 PathProgramCache]: Analyzing trace with hash 757189, now seen corresponding path program 1 times [2022-12-13 15:36:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:48,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342028120] [2022-12-13 15:36:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:48,989 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 15:36:48,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:48,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342028120] [2022-12-13 15:36:48,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342028120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:48,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:48,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:36:48,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724193215] [2022-12-13 15:36:48,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:48,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:36:49,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:49,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:36:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:36:49,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:36:49,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 60 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:36:49,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:36:49,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:36:49,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:09,751 INFO L130 PetriNetUnfolder]: 314139/408372 cut-off events. [2022-12-13 15:37:09,751 INFO L131 PetriNetUnfolder]: For 17430/17430 co-relation queries the response was YES. [2022-12-13 15:37:10,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819869 conditions, 408372 events. 314139/408372 cut-off events. For 17430/17430 co-relation queries the response was YES. Maximal size of possible extension queue 20701. Compared 2997697 event pairs, 258754 based on Foata normal form. 0/210532 useless extension candidates. Maximal degree in co-relation 818224. Up to 397670 conditions per place. [2022-12-13 15:37:12,093 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 62 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2022-12-13 15:37:12,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 323 flow [2022-12-13 15:37:12,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:37:12,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:37:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2022-12-13 15:37:12,108 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5653710247349824 [2022-12-13 15:37:12,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2022-12-13 15:37:12,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2022-12-13 15:37:12,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:12,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2022-12-13 15:37:12,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:12,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:12,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:12,123 INFO L175 Difference]: Start difference. First operand has 76 places, 60 transitions, 147 flow. Second operand 3 states and 480 transitions. [2022-12-13 15:37:12,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 323 flow [2022-12-13 15:37:12,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 74 transitions, 299 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-12-13 15:37:12,519 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 188 flow [2022-12-13 15:37:12,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2022-12-13 15:37:12,523 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2022-12-13 15:37:12,523 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 188 flow [2022-12-13 15:37:12,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:12,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:12,524 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:37:12,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:37:12,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:12,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1087369800, now seen corresponding path program 1 times [2022-12-13 15:37:12,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:12,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673084547] [2022-12-13 15:37:12,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:12,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:12,602 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 15:37:12,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673084547] [2022-12-13 15:37:12,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673084547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:12,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:12,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:37:12,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229126488] [2022-12-13 15:37:12,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:12,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:37:12,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:12,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:37:12,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:37:12,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:37:12,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 188 flow. Second operand has 3 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 15:37:12,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:12,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:37:12,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:22,390 INFO L130 PetriNetUnfolder]: 163615/214312 cut-off events. [2022-12-13 15:37:22,390 INFO L131 PetriNetUnfolder]: For 24736/24736 co-relation queries the response was YES. [2022-12-13 15:37:22,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487630 conditions, 214312 events. 163615/214312 cut-off events. For 24736/24736 co-relation queries the response was YES. Maximal size of possible extension queue 10672. Compared 1523683 event pairs, 156055 based on Foata normal form. 0/123726 useless extension candidates. Maximal degree in co-relation 353719. Up to 208316 conditions per place. [2022-12-13 15:37:23,325 INFO L137 encePairwiseOnDemand]: 277/283 looper letters, 53 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2022-12-13 15:37:23,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 276 flow [2022-12-13 15:37:23,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:37:23,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:37:23,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2022-12-13 15:37:23,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5371024734982333 [2022-12-13 15:37:23,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2022-12-13 15:37:23,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2022-12-13 15:37:23,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:23,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2022-12-13 15:37:23,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:23,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:23,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:23,332 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 188 flow. Second operand 3 states and 456 transitions. [2022-12-13 15:37:23,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 276 flow [2022-12-13 15:37:23,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:37:23,333 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 164 flow [2022-12-13 15:37:23,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=64, 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=164, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2022-12-13 15:37:23,334 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -10 predicate places. [2022-12-13 15:37:23,334 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 164 flow [2022-12-13 15:37:23,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 15:37:23,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:23,335 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:37:23,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:37:23,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:23,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1087323301, now seen corresponding path program 1 times [2022-12-13 15:37:23,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:23,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497870204] [2022-12-13 15:37:23,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:23,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:23,427 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 15:37:23,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:23,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497870204] [2022-12-13 15:37:23,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497870204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:23,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:23,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:37:23,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975310493] [2022-12-13 15:37:23,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:23,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:37:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:37:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:37:23,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:37:23,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:23,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:23,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:37:23,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:32,778 INFO L130 PetriNetUnfolder]: 158918/209679 cut-off events. [2022-12-13 15:37:32,778 INFO L131 PetriNetUnfolder]: For 22228/22228 co-relation queries the response was YES. [2022-12-13 15:37:33,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472606 conditions, 209679 events. 158918/209679 cut-off events. For 22228/22228 co-relation queries the response was YES. Maximal size of possible extension queue 10641. Compared 1521161 event pairs, 88368 based on Foata normal form. 0/122197 useless extension candidates. Maximal degree in co-relation 472598. Up to 202162 conditions per place. [2022-12-13 15:37:33,877 INFO L137 encePairwiseOnDemand]: 272/283 looper letters, 86 selfloop transitions, 11 changer transitions 0/103 dead transitions. [2022-12-13 15:37:33,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 464 flow [2022-12-13 15:37:33,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:37:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:37:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 638 transitions. [2022-12-13 15:37:33,880 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5636042402826855 [2022-12-13 15:37:33,880 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 638 transitions. [2022-12-13 15:37:33,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 638 transitions. [2022-12-13 15:37:33,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:33,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 638 transitions. [2022-12-13 15:37:33,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.5) internal successors, (638), 4 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:33,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:33,884 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:33,884 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 164 flow. Second operand 4 states and 638 transitions. [2022-12-13 15:37:33,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 464 flow [2022-12-13 15:37:33,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 103 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:37:33,887 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 235 flow [2022-12-13 15:37:33,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2022-12-13 15:37:33,888 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2022-12-13 15:37:33,888 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 235 flow [2022-12-13 15:37:33,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:33,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:33,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:33,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:37:33,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash -780177911, now seen corresponding path program 1 times [2022-12-13 15:37:33,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:33,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500818172] [2022-12-13 15:37:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:33,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:33,960 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 15:37:33,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:33,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500818172] [2022-12-13 15:37:33,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500818172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:33,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:33,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:37:33,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661421] [2022-12-13 15:37:33,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:33,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:37:33,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:37:33,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:37:33,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:37:33,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:33,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:33,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:37:33,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:39,310 INFO L130 PetriNetUnfolder]: 90756/119498 cut-off events. [2022-12-13 15:37:39,310 INFO L131 PetriNetUnfolder]: For 50343/50343 co-relation queries the response was YES. [2022-12-13 15:37:39,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308819 conditions, 119498 events. 90756/119498 cut-off events. For 50343/50343 co-relation queries the response was YES. Maximal size of possible extension queue 6286. Compared 755808 event pairs, 27762 based on Foata normal form. 0/72241 useless extension candidates. Maximal degree in co-relation 308809. Up to 110267 conditions per place. [2022-12-13 15:37:39,835 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 87 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2022-12-13 15:37:39,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 99 transitions, 559 flow [2022-12-13 15:37:39,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:37:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:37:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2022-12-13 15:37:39,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5771495877502945 [2022-12-13 15:37:39,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2022-12-13 15:37:39,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2022-12-13 15:37:39,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:39,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2022-12-13 15:37:39,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:39,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:39,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:39,841 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 235 flow. Second operand 3 states and 490 transitions. [2022-12-13 15:37:39,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 99 transitions, 559 flow [2022-12-13 15:37:39,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 99 transitions, 522 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-12-13 15:37:39,846 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 271 flow [2022-12-13 15:37:39,846 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2022-12-13 15:37:39,847 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2022-12-13 15:37:39,847 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 271 flow [2022-12-13 15:37:39,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:39,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:39,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:39,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:37:39,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:39,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:39,848 INFO L85 PathProgramCache]: Analyzing trace with hash -190133354, now seen corresponding path program 1 times [2022-12-13 15:37:39,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:39,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827027653] [2022-12-13 15:37:39,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,929 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 15:37:39,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:39,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827027653] [2022-12-13 15:37:39,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827027653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:39,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:39,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:37:39,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230321151] [2022-12-13 15:37:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:39,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:37:39,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:37:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:37:39,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:37:39,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:39,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:39,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:37:39,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:45,533 INFO L130 PetriNetUnfolder]: 81174/110495 cut-off events. [2022-12-13 15:37:45,533 INFO L131 PetriNetUnfolder]: For 43908/43908 co-relation queries the response was YES. [2022-12-13 15:37:45,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320708 conditions, 110495 events. 81174/110495 cut-off events. For 43908/43908 co-relation queries the response was YES. Maximal size of possible extension queue 6489. Compared 800224 event pairs, 31584 based on Foata normal form. 0/68469 useless extension candidates. Maximal degree in co-relation 320697. Up to 105040 conditions per place. [2022-12-13 15:37:46,287 INFO L137 encePairwiseOnDemand]: 272/283 looper letters, 115 selfloop transitions, 16 changer transitions 0/137 dead transitions. [2022-12-13 15:37:46,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 137 transitions, 762 flow [2022-12-13 15:37:46,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:37:46,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:37:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 796 transitions. [2022-12-13 15:37:46,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5625441696113074 [2022-12-13 15:37:46,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 796 transitions. [2022-12-13 15:37:46,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 796 transitions. [2022-12-13 15:37:46,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:46,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 796 transitions. [2022-12-13 15:37:46,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.2) internal successors, (796), 5 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:46,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:46,295 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:46,295 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 271 flow. Second operand 5 states and 796 transitions. [2022-12-13 15:37:46,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 137 transitions, 762 flow [2022-12-13 15:37:46,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 137 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:37:46,305 INFO L231 Difference]: Finished difference. Result has 74 places, 75 transitions, 357 flow [2022-12-13 15:37:46,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=357, PETRI_PLACES=74, PETRI_TRANSITIONS=75} [2022-12-13 15:37:46,305 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -2 predicate places. [2022-12-13 15:37:46,306 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 75 transitions, 357 flow [2022-12-13 15:37:46,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:46,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:46,306 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:46,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:37:46,306 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:46,307 INFO L85 PathProgramCache]: Analyzing trace with hash -919281029, now seen corresponding path program 1 times [2022-12-13 15:37:46,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:46,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815201886] [2022-12-13 15:37:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:46,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:37:46,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:46,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815201886] [2022-12-13 15:37:46,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815201886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:46,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:46,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:37:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517044440] [2022-12-13 15:37:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:46,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:37:46,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:37:46,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:37:46,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:37:46,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 357 flow. Second operand has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:46,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:46,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:37:46,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:50,868 INFO L130 PetriNetUnfolder]: 61932/84493 cut-off events. [2022-12-13 15:37:50,868 INFO L131 PetriNetUnfolder]: For 61937/61937 co-relation queries the response was YES. [2022-12-13 15:37:51,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254780 conditions, 84493 events. 61932/84493 cut-off events. For 61937/61937 co-relation queries the response was YES. Maximal size of possible extension queue 5166. Compared 603607 event pairs, 10484 based on Foata normal form. 0/54295 useless extension candidates. Maximal degree in co-relation 254767. Up to 72638 conditions per place. [2022-12-13 15:37:51,299 INFO L137 encePairwiseOnDemand]: 272/283 looper letters, 149 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2022-12-13 15:37:51,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 176 transitions, 1039 flow [2022-12-13 15:37:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:37:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:37:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 964 transitions. [2022-12-13 15:37:51,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5677267373380448 [2022-12-13 15:37:51,302 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 964 transitions. [2022-12-13 15:37:51,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 964 transitions. [2022-12-13 15:37:51,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:51,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 964 transitions. [2022-12-13 15:37:51,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:51,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:51,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:51,307 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 357 flow. Second operand 6 states and 964 transitions. [2022-12-13 15:37:51,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 176 transitions, 1039 flow [2022-12-13 15:37:51,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 176 transitions, 997 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-13 15:37:51,329 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 427 flow [2022-12-13 15:37:51,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2022-12-13 15:37:51,329 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2022-12-13 15:37:51,329 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 427 flow [2022-12-13 15:37:51,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:51,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:51,330 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:51,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:37:51,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:51,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:51,331 INFO L85 PathProgramCache]: Analyzing trace with hash -479334432, now seen corresponding path program 1 times [2022-12-13 15:37:51,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:51,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142354939] [2022-12-13 15:37:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:51,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:51,362 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 15:37:51,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:51,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142354939] [2022-12-13 15:37:51,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142354939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:51,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:51,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:37:51,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922935712] [2022-12-13 15:37:51,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:51,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:37:51,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:51,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:37:51,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:37:51,368 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:37:51,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 427 flow. Second operand has 3 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 15:37:51,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:51,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:37:51,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:53,902 INFO L130 PetriNetUnfolder]: 30540/41690 cut-off events. [2022-12-13 15:37:53,902 INFO L131 PetriNetUnfolder]: For 58894/58894 co-relation queries the response was YES. [2022-12-13 15:37:53,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135506 conditions, 41690 events. 30540/41690 cut-off events. For 58894/58894 co-relation queries the response was YES. Maximal size of possible extension queue 2254. Compared 269953 event pairs, 23262 based on Foata normal form. 0/31763 useless extension candidates. Maximal degree in co-relation 135492. Up to 40445 conditions per place. [2022-12-13 15:37:54,126 INFO L137 encePairwiseOnDemand]: 277/283 looper letters, 68 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2022-12-13 15:37:54,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 75 transitions, 545 flow [2022-12-13 15:37:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:37:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:37:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2022-12-13 15:37:54,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5312131919905771 [2022-12-13 15:37:54,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2022-12-13 15:37:54,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2022-12-13 15:37:54,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:37:54,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2022-12-13 15:37:54,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:54,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:54,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:54,131 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 427 flow. Second operand 3 states and 451 transitions. [2022-12-13 15:37:54,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 75 transitions, 545 flow [2022-12-13 15:37:54,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 75 transitions, 483 flow, removed 15 selfloop flow, removed 4 redundant places. [2022-12-13 15:37:54,233 INFO L231 Difference]: Finished difference. Result has 70 places, 75 transitions, 347 flow [2022-12-13 15:37:54,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2022-12-13 15:37:54,234 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2022-12-13 15:37:54,234 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 75 transitions, 347 flow [2022-12-13 15:37:54,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 15:37:54,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:54,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:54,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:37:54,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:37:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash 577996293, now seen corresponding path program 1 times [2022-12-13 15:37:54,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:54,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745558521] [2022-12-13 15:37:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:54,332 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 15:37:54,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:54,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745558521] [2022-12-13 15:37:54,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745558521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:54,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:54,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:37:54,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008947495] [2022-12-13 15:37:54,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:54,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:37:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:37:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:37:54,354 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 283 [2022-12-13 15:37:54,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 131.42857142857142) internal successors, (920), 7 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:37:54,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:37:54,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 283 [2022-12-13 15:37:54,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:37:59,696 INFO L130 PetriNetUnfolder]: 60842/87581 cut-off events. [2022-12-13 15:37:59,696 INFO L131 PetriNetUnfolder]: For 77399/77399 co-relation queries the response was YES. [2022-12-13 15:37:59,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258775 conditions, 87581 events. 60842/87581 cut-off events. For 77399/77399 co-relation queries the response was YES. Maximal size of possible extension queue 4387. Compared 653329 event pairs, 9468 based on Foata normal form. 0/71737 useless extension candidates. Maximal degree in co-relation 258761. Up to 32860 conditions per place. [2022-12-13 15:38:00,118 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 169 selfloop transitions, 46 changer transitions 2/223 dead transitions. [2022-12-13 15:38:00,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 223 transitions, 1487 flow [2022-12-13 15:38:00,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:38:00,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:38:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 945 transitions. [2022-12-13 15:38:00,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5565371024734982 [2022-12-13 15:38:00,121 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 945 transitions. [2022-12-13 15:38:00,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 945 transitions. [2022-12-13 15:38:00,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:00,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 945 transitions. [2022-12-13 15:38:00,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 157.5) internal successors, (945), 6 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:00,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:00,126 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:00,126 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 347 flow. Second operand 6 states and 945 transitions. [2022-12-13 15:38:00,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 223 transitions, 1487 flow [2022-12-13 15:38:00,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 223 transitions, 1486 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:38:00,207 INFO L231 Difference]: Finished difference. Result has 76 places, 110 transitions, 762 flow [2022-12-13 15:38:00,208 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=76, PETRI_TRANSITIONS=110} [2022-12-13 15:38:00,208 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2022-12-13 15:38:00,208 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 110 transitions, 762 flow [2022-12-13 15:38:00,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 131.42857142857142) internal successors, (920), 7 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:00,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:00,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:00,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:38:00,209 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:00,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:00,210 INFO L85 PathProgramCache]: Analyzing trace with hash -588167681, now seen corresponding path program 2 times [2022-12-13 15:38:00,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:00,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126964470] [2022-12-13 15:38:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:00,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:00,319 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 15:38:00,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:00,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126964470] [2022-12-13 15:38:00,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126964470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:00,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:00,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:38:00,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031350152] [2022-12-13 15:38:00,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:00,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:38:00,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:38:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:38:00,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 283 [2022-12-13 15:38:00,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 110 transitions, 762 flow. Second operand has 7 states, 7 states have (on average 131.42857142857142) internal successors, (920), 7 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:00,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:00,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 283 [2022-12-13 15:38:00,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:04,551 INFO L130 PetriNetUnfolder]: 43473/62306 cut-off events. [2022-12-13 15:38:04,551 INFO L131 PetriNetUnfolder]: For 158445/158649 co-relation queries the response was YES. [2022-12-13 15:38:04,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228193 conditions, 62306 events. 43473/62306 cut-off events. For 158445/158649 co-relation queries the response was YES. Maximal size of possible extension queue 2683. Compared 428681 event pairs, 5898 based on Foata normal form. 2704/64906 useless extension candidates. Maximal degree in co-relation 228176. Up to 41159 conditions per place. [2022-12-13 15:38:04,897 INFO L137 encePairwiseOnDemand]: 262/283 looper letters, 215 selfloop transitions, 41 changer transitions 0/262 dead transitions. [2022-12-13 15:38:04,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 262 transitions, 2254 flow [2022-12-13 15:38:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:38:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:38:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1074 transitions. [2022-12-13 15:38:04,900 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5421504290762241 [2022-12-13 15:38:04,900 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1074 transitions. [2022-12-13 15:38:04,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1074 transitions. [2022-12-13 15:38:04,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:04,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1074 transitions. [2022-12-13 15:38:04,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.42857142857142) internal successors, (1074), 7 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:04,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 283.0) internal successors, (2264), 8 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:04,904 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 283.0) internal successors, (2264), 8 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:04,905 INFO L175 Difference]: Start difference. First operand has 76 places, 110 transitions, 762 flow. Second operand 7 states and 1074 transitions. [2022-12-13 15:38:04,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 262 transitions, 2254 flow [2022-12-13 15:38:05,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 262 transitions, 2248 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:38:05,005 INFO L231 Difference]: Finished difference. Result has 83 places, 135 transitions, 1128 flow [2022-12-13 15:38:05,005 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1128, PETRI_PLACES=83, PETRI_TRANSITIONS=135} [2022-12-13 15:38:05,005 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 7 predicate places. [2022-12-13 15:38:05,005 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 135 transitions, 1128 flow [2022-12-13 15:38:05,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 131.42857142857142) internal successors, (920), 7 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:05,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:05,006 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:05,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:38:05,006 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:05,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1178792969, now seen corresponding path program 1 times [2022-12-13 15:38:05,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:05,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877597947] [2022-12-13 15:38:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:05,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:05,082 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 15:38:05,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:05,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877597947] [2022-12-13 15:38:05,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877597947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:05,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:05,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:38:05,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510302791] [2022-12-13 15:38:05,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:05,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:38:05,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:05,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:38:05,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:38:05,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:38:05,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 135 transitions, 1128 flow. Second operand has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:05,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:05,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:38:05,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:08,601 INFO L130 PetriNetUnfolder]: 31383/46590 cut-off events. [2022-12-13 15:38:08,601 INFO L131 PetriNetUnfolder]: For 199054/199370 co-relation queries the response was YES. [2022-12-13 15:38:08,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184962 conditions, 46590 events. 31383/46590 cut-off events. For 199054/199370 co-relation queries the response was YES. Maximal size of possible extension queue 1802. Compared 335086 event pairs, 1710 based on Foata normal form. 4096/50654 useless extension candidates. Maximal degree in co-relation 184942. Up to 17799 conditions per place. [2022-12-13 15:38:08,882 INFO L137 encePairwiseOnDemand]: 272/283 looper letters, 233 selfloop transitions, 46 changer transitions 0/285 dead transitions. [2022-12-13 15:38:08,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 285 transitions, 2639 flow [2022-12-13 15:38:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:38:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:38:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1097 transitions. [2022-12-13 15:38:08,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5537607269056032 [2022-12-13 15:38:08,885 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1097 transitions. [2022-12-13 15:38:08,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1097 transitions. [2022-12-13 15:38:08,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:08,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1097 transitions. [2022-12-13 15:38:08,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 156.71428571428572) internal successors, (1097), 7 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:08,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 283.0) internal successors, (2264), 8 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:08,889 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 283.0) internal successors, (2264), 8 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:08,889 INFO L175 Difference]: Start difference. First operand has 83 places, 135 transitions, 1128 flow. Second operand 7 states and 1097 transitions. [2022-12-13 15:38:08,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 285 transitions, 2639 flow [2022-12-13 15:38:09,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 285 transitions, 2445 flow, removed 60 selfloop flow, removed 4 redundant places. [2022-12-13 15:38:09,993 INFO L231 Difference]: Finished difference. Result has 79 places, 115 transitions, 922 flow [2022-12-13 15:38:09,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=922, PETRI_PLACES=79, PETRI_TRANSITIONS=115} [2022-12-13 15:38:09,994 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 3 predicate places. [2022-12-13 15:38:09,994 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 115 transitions, 922 flow [2022-12-13 15:38:09,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:09,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:09,994 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:09,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:38:09,994 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:09,995 INFO L85 PathProgramCache]: Analyzing trace with hash -536199138, now seen corresponding path program 1 times [2022-12-13 15:38:09,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:09,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489854625] [2022-12-13 15:38:09,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:09,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:10,063 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 15:38:10,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:10,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489854625] [2022-12-13 15:38:10,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489854625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:10,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:10,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:38:10,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237291428] [2022-12-13 15:38:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:10,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:38:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:10,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:38:10,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:38:10,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:38:10,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 115 transitions, 922 flow. Second operand has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:10,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:10,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:38:10,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:12,570 INFO L130 PetriNetUnfolder]: 23747/34151 cut-off events. [2022-12-13 15:38:12,570 INFO L131 PetriNetUnfolder]: For 109130/109153 co-relation queries the response was YES. [2022-12-13 15:38:12,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137884 conditions, 34151 events. 23747/34151 cut-off events. For 109130/109153 co-relation queries the response was YES. Maximal size of possible extension queue 1302. Compared 213073 event pairs, 2548 based on Foata normal form. 1776/35861 useless extension candidates. Maximal degree in co-relation 137865. Up to 10827 conditions per place. [2022-12-13 15:38:12,761 INFO L137 encePairwiseOnDemand]: 272/283 looper letters, 195 selfloop transitions, 36 changer transitions 0/237 dead transitions. [2022-12-13 15:38:12,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 237 transitions, 2338 flow [2022-12-13 15:38:12,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:38:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:38:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 786 transitions. [2022-12-13 15:38:12,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5554770318021202 [2022-12-13 15:38:12,763 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 786 transitions. [2022-12-13 15:38:12,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 786 transitions. [2022-12-13 15:38:12,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:12,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 786 transitions. [2022-12-13 15:38:12,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:12,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:12,766 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:12,766 INFO L175 Difference]: Start difference. First operand has 79 places, 115 transitions, 922 flow. Second operand 5 states and 786 transitions. [2022-12-13 15:38:12,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 237 transitions, 2338 flow [2022-12-13 15:38:13,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 237 transitions, 1820 flow, removed 125 selfloop flow, removed 9 redundant places. [2022-12-13 15:38:13,068 INFO L231 Difference]: Finished difference. Result has 75 places, 130 transitions, 981 flow [2022-12-13 15:38:13,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=981, PETRI_PLACES=75, PETRI_TRANSITIONS=130} [2022-12-13 15:38:13,069 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -1 predicate places. [2022-12-13 15:38:13,069 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 130 transitions, 981 flow [2022-12-13 15:38:13,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:13,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:13,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:13,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:38:13,069 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:13,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:13,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1335706560, now seen corresponding path program 1 times [2022-12-13 15:38:13,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:13,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376774131] [2022-12-13 15:38:13,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:13,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:13,227 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 15:38:13,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:13,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376774131] [2022-12-13 15:38:13,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376774131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:13,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:13,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:38:13,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473016241] [2022-12-13 15:38:13,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:13,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 15:38:13,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:13,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 15:38:13,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:38:13,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 283 [2022-12-13 15:38:13,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 130 transitions, 981 flow. Second operand has 11 states, 11 states have (on average 128.9090909090909) internal successors, (1418), 11 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:13,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:13,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 283 [2022-12-13 15:38:13,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:18,334 INFO L130 PetriNetUnfolder]: 45898/66987 cut-off events. [2022-12-13 15:38:18,334 INFO L131 PetriNetUnfolder]: For 163746/163802 co-relation queries the response was YES. [2022-12-13 15:38:18,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242840 conditions, 66987 events. 45898/66987 cut-off events. For 163746/163802 co-relation queries the response was YES. Maximal size of possible extension queue 2803. Compared 476497 event pairs, 2914 based on Foata normal form. 1450/68437 useless extension candidates. Maximal degree in co-relation 242824. Up to 18023 conditions per place. [2022-12-13 15:38:18,675 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 328 selfloop transitions, 174 changer transitions 99/606 dead transitions. [2022-12-13 15:38:18,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 606 transitions, 4829 flow [2022-12-13 15:38:18,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 15:38:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 15:38:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2713 transitions. [2022-12-13 15:38:18,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5325873576756969 [2022-12-13 15:38:18,680 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2713 transitions. [2022-12-13 15:38:18,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2713 transitions. [2022-12-13 15:38:18,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:18,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2713 transitions. [2022-12-13 15:38:18,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 150.72222222222223) internal successors, (2713), 18 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:18,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 283.0) internal successors, (5377), 19 states have internal predecessors, (5377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:18,690 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 283.0) internal successors, (5377), 19 states have internal predecessors, (5377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:18,690 INFO L175 Difference]: Start difference. First operand has 75 places, 130 transitions, 981 flow. Second operand 18 states and 2713 transitions. [2022-12-13 15:38:18,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 606 transitions, 4829 flow [2022-12-13 15:38:20,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 606 transitions, 4512 flow, removed 90 selfloop flow, removed 3 redundant places. [2022-12-13 15:38:20,633 INFO L231 Difference]: Finished difference. Result has 98 places, 243 transitions, 2534 flow [2022-12-13 15:38:20,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2534, PETRI_PLACES=98, PETRI_TRANSITIONS=243} [2022-12-13 15:38:20,633 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 22 predicate places. [2022-12-13 15:38:20,634 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 243 transitions, 2534 flow [2022-12-13 15:38:20,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 128.9090909090909) internal successors, (1418), 11 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:20,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:20,634 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:20,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:38:20,634 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1882056731, now seen corresponding path program 1 times [2022-12-13 15:38:20,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:20,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146018973] [2022-12-13 15:38:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:20,796 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 15:38:20,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:20,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146018973] [2022-12-13 15:38:20,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146018973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:20,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:20,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:38:20,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700563472] [2022-12-13 15:38:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:20,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:38:20,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:38:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:38:20,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 283 [2022-12-13 15:38:20,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 243 transitions, 2534 flow. Second operand has 10 states, 10 states have (on average 132.5) internal successors, (1325), 10 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:20,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:20,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 283 [2022-12-13 15:38:20,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:26,569 INFO L130 PetriNetUnfolder]: 37386/56959 cut-off events. [2022-12-13 15:38:26,569 INFO L131 PetriNetUnfolder]: For 238978/239878 co-relation queries the response was YES. [2022-12-13 15:38:26,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238900 conditions, 56959 events. 37386/56959 cut-off events. For 238978/239878 co-relation queries the response was YES. Maximal size of possible extension queue 2599. Compared 439383 event pairs, 2292 based on Foata normal form. 146/56905 useless extension candidates. Maximal degree in co-relation 238875. Up to 14387 conditions per place. [2022-12-13 15:38:26,839 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 214 selfloop transitions, 170 changer transitions 166/556 dead transitions. [2022-12-13 15:38:26,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 556 transitions, 5882 flow [2022-12-13 15:38:26,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 15:38:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 15:38:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1992 transitions. [2022-12-13 15:38:26,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.54145148138081 [2022-12-13 15:38:26,843 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1992 transitions. [2022-12-13 15:38:26,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1992 transitions. [2022-12-13 15:38:26,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:26,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1992 transitions. [2022-12-13 15:38:26,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 153.23076923076923) internal successors, (1992), 13 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:26,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 283.0) internal successors, (3962), 14 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:26,849 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 283.0) internal successors, (3962), 14 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:26,850 INFO L175 Difference]: Start difference. First operand has 98 places, 243 transitions, 2534 flow. Second operand 13 states and 1992 transitions. [2022-12-13 15:38:26,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 556 transitions, 5882 flow [2022-12-13 15:38:33,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 556 transitions, 5243 flow, removed 163 selfloop flow, removed 7 redundant places. [2022-12-13 15:38:33,478 INFO L231 Difference]: Finished difference. Result has 107 places, 228 transitions, 2580 flow [2022-12-13 15:38:33,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=2165, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2580, PETRI_PLACES=107, PETRI_TRANSITIONS=228} [2022-12-13 15:38:33,479 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 31 predicate places. [2022-12-13 15:38:33,479 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 228 transitions, 2580 flow [2022-12-13 15:38:33,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 132.5) internal successors, (1325), 10 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:33,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:33,480 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:33,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:38:33,480 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash 351401867, now seen corresponding path program 2 times [2022-12-13 15:38:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:33,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900186419] [2022-12-13 15:38:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:33,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:33,633 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 15:38:33,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:33,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900186419] [2022-12-13 15:38:33,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900186419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:33,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:33,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:38:33,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854528193] [2022-12-13 15:38:33,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:33,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:38:33,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:33,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:38:33,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:38:33,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 283 [2022-12-13 15:38:33,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 228 transitions, 2580 flow. Second operand has 9 states, 9 states have (on average 132.77777777777777) internal successors, (1195), 9 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:33,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:33,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 283 [2022-12-13 15:38:33,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:37,793 INFO L130 PetriNetUnfolder]: 28295/42240 cut-off events. [2022-12-13 15:38:37,793 INFO L131 PetriNetUnfolder]: For 234755/235309 co-relation queries the response was YES. [2022-12-13 15:38:37,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191175 conditions, 42240 events. 28295/42240 cut-off events. For 234755/235309 co-relation queries the response was YES. Maximal size of possible extension queue 1871. Compared 302419 event pairs, 1032 based on Foata normal form. 176/42366 useless extension candidates. Maximal degree in co-relation 191147. Up to 10328 conditions per place. [2022-12-13 15:38:38,012 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 202 selfloop transitions, 164 changer transitions 49/421 dead transitions. [2022-12-13 15:38:38,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 421 transitions, 4600 flow [2022-12-13 15:38:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:38:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:38:38,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1842 transitions. [2022-12-13 15:38:38,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5424028268551236 [2022-12-13 15:38:38,015 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1842 transitions. [2022-12-13 15:38:38,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1842 transitions. [2022-12-13 15:38:38,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:38,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1842 transitions. [2022-12-13 15:38:38,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.5) internal successors, (1842), 12 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:38,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 283.0) internal successors, (3679), 13 states have internal predecessors, (3679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:38,022 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 283.0) internal successors, (3679), 13 states have internal predecessors, (3679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:38,022 INFO L175 Difference]: Start difference. First operand has 107 places, 228 transitions, 2580 flow. Second operand 12 states and 1842 transitions. [2022-12-13 15:38:38,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 421 transitions, 4600 flow [2022-12-13 15:38:50,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 421 transitions, 4202 flow, removed 117 selfloop flow, removed 9 redundant places. [2022-12-13 15:38:50,578 INFO L231 Difference]: Finished difference. Result has 111 places, 208 transitions, 2509 flow [2022-12-13 15:38:50,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=2238, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2509, PETRI_PLACES=111, PETRI_TRANSITIONS=208} [2022-12-13 15:38:50,579 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 35 predicate places. [2022-12-13 15:38:50,579 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 208 transitions, 2509 flow [2022-12-13 15:38:50,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 132.77777777777777) internal successors, (1195), 9 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:50,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:38:50,579 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:50,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:38:50,579 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:38:50,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1877626276, now seen corresponding path program 1 times [2022-12-13 15:38:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:50,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21824222] [2022-12-13 15:38:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:50,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:50,731 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 15:38:50,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:50,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21824222] [2022-12-13 15:38:50,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21824222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:50,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:38:50,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:38:50,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291650725] [2022-12-13 15:38:50,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:50,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:38:50,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:50,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:38:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:38:50,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 283 [2022-12-13 15:38:50,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 208 transitions, 2509 flow. Second operand has 10 states, 10 states have (on average 132.5) internal successors, (1325), 10 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:50,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:38:50,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 283 [2022-12-13 15:38:50,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:38:54,006 INFO L130 PetriNetUnfolder]: 21176/31531 cut-off events. [2022-12-13 15:38:54,006 INFO L131 PetriNetUnfolder]: For 197763/197939 co-relation queries the response was YES. [2022-12-13 15:38:54,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147431 conditions, 31531 events. 21176/31531 cut-off events. For 197763/197939 co-relation queries the response was YES. Maximal size of possible extension queue 1136. Compared 211133 event pairs, 1682 based on Foata normal form. 82/31597 useless extension candidates. Maximal degree in co-relation 147403. Up to 8215 conditions per place. [2022-12-13 15:38:54,188 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 285 selfloop transitions, 123 changer transitions 40/454 dead transitions. [2022-12-13 15:38:54,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 454 transitions, 4875 flow [2022-12-13 15:38:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 15:38:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 15:38:54,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2563 transitions. [2022-12-13 15:38:54,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5327374766160882 [2022-12-13 15:38:54,193 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2563 transitions. [2022-12-13 15:38:54,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2563 transitions. [2022-12-13 15:38:54,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:38:54,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2563 transitions. [2022-12-13 15:38:54,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 150.76470588235293) internal successors, (2563), 17 states have internal predecessors, (2563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:54,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 283.0) internal successors, (5094), 18 states have internal predecessors, (5094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:54,201 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 283.0) internal successors, (5094), 18 states have internal predecessors, (5094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:38:54,201 INFO L175 Difference]: Start difference. First operand has 111 places, 208 transitions, 2509 flow. Second operand 17 states and 2563 transitions. [2022-12-13 15:38:54,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 454 transitions, 4875 flow [2022-12-13 15:39:00,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 454 transitions, 4112 flow, removed 249 selfloop flow, removed 10 redundant places. [2022-12-13 15:39:00,938 INFO L231 Difference]: Finished difference. Result has 117 places, 227 transitions, 2496 flow [2022-12-13 15:39:00,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=2019, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2496, PETRI_PLACES=117, PETRI_TRANSITIONS=227} [2022-12-13 15:39:00,939 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 41 predicate places. [2022-12-13 15:39:00,939 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 227 transitions, 2496 flow [2022-12-13 15:39:00,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 132.5) internal successors, (1325), 10 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:00,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:00,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:00,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:39:00,940 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:39:00,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2041345361, now seen corresponding path program 3 times [2022-12-13 15:39:00,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:00,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314486659] [2022-12-13 15:39:00,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:00,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:01,093 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 15:39:01,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:01,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314486659] [2022-12-13 15:39:01,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314486659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:01,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:01,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:39:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119854679] [2022-12-13 15:39:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:01,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:39:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:39:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:39:01,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 283 [2022-12-13 15:39:01,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 227 transitions, 2496 flow. Second operand has 10 states, 10 states have (on average 132.5) internal successors, (1325), 10 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:01,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:01,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 283 [2022-12-13 15:39:01,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:04,290 INFO L130 PetriNetUnfolder]: 20573/30708 cut-off events. [2022-12-13 15:39:04,290 INFO L131 PetriNetUnfolder]: For 150373/150695 co-relation queries the response was YES. [2022-12-13 15:39:04,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134758 conditions, 30708 events. 20573/30708 cut-off events. For 150373/150695 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 207632 event pairs, 852 based on Foata normal form. 144/30816 useless extension candidates. Maximal degree in co-relation 134731. Up to 7592 conditions per place. [2022-12-13 15:39:04,501 INFO L137 encePairwiseOnDemand]: 267/283 looper letters, 212 selfloop transitions, 134 changer transitions 55/407 dead transitions. [2022-12-13 15:39:04,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 407 transitions, 4061 flow [2022-12-13 15:39:04,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:39:04,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 15:39:04,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2127 transitions. [2022-12-13 15:39:04,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5368500757193336 [2022-12-13 15:39:04,504 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2127 transitions. [2022-12-13 15:39:04,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2127 transitions. [2022-12-13 15:39:04,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:04,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2127 transitions. [2022-12-13 15:39:04,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 151.92857142857142) internal successors, (2127), 14 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:04,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 283.0) internal successors, (4245), 15 states have internal predecessors, (4245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:04,510 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 283.0) internal successors, (4245), 15 states have internal predecessors, (4245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:04,511 INFO L175 Difference]: Start difference. First operand has 117 places, 227 transitions, 2496 flow. Second operand 14 states and 2127 transitions. [2022-12-13 15:39:04,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 407 transitions, 4061 flow [2022-12-13 15:39:08,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 407 transitions, 3778 flow, removed 75 selfloop flow, removed 11 redundant places. [2022-12-13 15:39:08,374 INFO L231 Difference]: Finished difference. Result has 119 places, 182 transitions, 2056 flow [2022-12-13 15:39:08,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=2253, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2056, PETRI_PLACES=119, PETRI_TRANSITIONS=182} [2022-12-13 15:39:08,374 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 43 predicate places. [2022-12-13 15:39:08,374 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 182 transitions, 2056 flow [2022-12-13 15:39:08,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 132.5) internal successors, (1325), 10 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:08,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:08,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:08,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 15:39:08,375 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-12-13 15:39:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:08,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1170459047, now seen corresponding path program 4 times [2022-12-13 15:39:08,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:08,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663709913] [2022-12-13 15:39:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:08,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:08,485 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 15:39:08,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:08,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663709913] [2022-12-13 15:39:08,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663709913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:08,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:08,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:39:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266854230] [2022-12-13 15:39:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:08,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:39:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:08,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:39:08,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:39:08,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2022-12-13 15:39:08,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 182 transitions, 2056 flow. Second operand has 7 states, 7 states have (on average 137.57142857142858) internal successors, (963), 7 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:08,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:08,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2022-12-13 15:39:08,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:10,699 INFO L130 PetriNetUnfolder]: 17951/26085 cut-off events. [2022-12-13 15:39:10,699 INFO L131 PetriNetUnfolder]: For 126965/126969 co-relation queries the response was YES. [2022-12-13 15:39:10,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118946 conditions, 26085 events. 17951/26085 cut-off events. For 126965/126969 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 162829 event pairs, 3246 based on Foata normal form. 120/26200 useless extension candidates. Maximal degree in co-relation 118921. Up to 7345 conditions per place. [2022-12-13 15:39:10,775 INFO L137 encePairwiseOnDemand]: 272/283 looper letters, 0 selfloop transitions, 0 changer transitions 237/237 dead transitions. [2022-12-13 15:39:10,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 237 transitions, 2645 flow [2022-12-13 15:39:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:39:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:39:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1057 transitions. [2022-12-13 15:39:10,777 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5335689045936396 [2022-12-13 15:39:10,777 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1057 transitions. [2022-12-13 15:39:10,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1057 transitions. [2022-12-13 15:39:10,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:10,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1057 transitions. [2022-12-13 15:39:10,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:10,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 283.0) internal successors, (2264), 8 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:10,781 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 283.0) internal successors, (2264), 8 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:10,781 INFO L175 Difference]: Start difference. First operand has 119 places, 182 transitions, 2056 flow. Second operand 7 states and 1057 transitions. [2022-12-13 15:39:10,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 237 transitions, 2645 flow [2022-12-13 15:39:12,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 237 transitions, 2004 flow, removed 35 selfloop flow, removed 24 redundant places. [2022-12-13 15:39:12,811 INFO L231 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2022-12-13 15:39:12,811 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2022-12-13 15:39:12,811 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, 20 predicate places. [2022-12-13 15:39:12,811 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2022-12-13 15:39:12,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 137.57142857142858) internal successors, (963), 7 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:12,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2022-12-13 15:39:12,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2022-12-13 15:39:12,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2022-12-13 15:39:12,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2022-12-13 15:39:12,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 45 remaining) [2022-12-13 15:39:12,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 15:39:12,818 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:12,822 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:39:12,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:39:12,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:39:12 BasicIcfg [2022-12-13 15:39:12,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:39:12,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:39:12,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:39:12,825 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:39:12,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:36:43" (3/4) ... [2022-12-13 15:39:12,827 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:39:12,830 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 15:39:12,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 15:39:12,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 15:39:12,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-12-13 15:39:12,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2022-12-13 15:39:12,834 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-12-13 15:39:12,835 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:39:12,835 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:39:12,835 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:39:12,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:39:12,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:39:12,864 INFO L158 Benchmark]: Toolchain (without parser) took 149724.47ms. Allocated memory was 167.8MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 139.1MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2022-12-13 15:39:12,864 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory was 68.1MB in the beginning and 68.0MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:39:12,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.00ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 122.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 15:39:12,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.10ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 120.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:39:12,865 INFO L158 Benchmark]: Boogie Preprocessor took 18.38ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:39:12,865 INFO L158 Benchmark]: RCFGBuilder took 552.86ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 131.5MB in the end (delta: -12.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-12-13 15:39:12,865 INFO L158 Benchmark]: TraceAbstraction took 148885.19ms. Allocated memory was 167.8MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 131.5MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2022-12-13 15:39:12,866 INFO L158 Benchmark]: Witness Printer took 38.73ms. Allocated memory is still 8.5GB. Free memory was 6.0GB in the beginning and 6.0GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:39:12,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory was 68.1MB in the beginning and 68.0MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.00ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 122.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.10ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 120.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.38ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.86ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 131.5MB in the end (delta: -12.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 148885.19ms. Allocated memory was 167.8MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 131.5MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. * Witness Printer took 38.73ms. Allocated memory is still 8.5GB. Free memory was 6.0GB in the beginning and 6.0GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 169 PlacesBefore, 76 PlacesAfterwards, 154 TransitionsBefore, 60 TransitionsAfterwards, 4234 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 99 TotalNumberOfCompositions, 23550 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6845, independent: 6403, independent conditional: 0, independent unconditional: 6403, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1712, independent: 1646, independent conditional: 0, independent unconditional: 1646, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6845, independent: 4757, independent conditional: 0, independent unconditional: 4757, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 1712, unknown conditional: 0, unknown unconditional: 1712] , Statistics on independence cache: Total cache size (in pairs): 478, Positive cache size: 449, Positive conditional cache size: 0, Positive unconditional cache size: 449, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: 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 11 procedures, 244 locations, 45 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: 148.8s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 142.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2782 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2674 mSDsluCounter, 403 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 375 mSDsCounter, 805 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5471 IncrementalHoareTripleChecker+Invalid, 6276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 805 mSolverCounterUnsat, 28 mSDtfsCounter, 5471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2580occurred in iteration=13, InterpolantAutomatonStates: 133, 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, 1.5s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 1053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:39:12,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_221cad1f-7ba9-4760-a82d-188f39015c8b/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