./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/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_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/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_1db52924-981b-4ce1-a27d-bbd56019d13b/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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --- 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 14:15:31,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:15:31,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:15:31,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:15:31,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:15:31,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:15:31,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:15:31,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:15:31,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:15:31,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:15:31,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:15:31,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:15:31,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:15:31,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:15:31,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:15:31,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:15:31,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:15:31,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:15:31,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:15:31,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:15:31,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:15:31,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:15:31,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:15:31,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:15:31,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:15:31,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:15:31,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:15:31,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:15:31,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:15:31,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:15:31,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:15:31,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:15:31,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:15:31,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:15:31,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:15:31,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:15:31,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:15:31,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:15:31,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:15:31,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:15:31,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:15:31,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:15:31,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:15:31,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:15:31,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:15:31,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:15:31,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:15:31,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:15:31,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:15:31,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:15:31,790 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:15:31,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:15:31,790 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:15:31,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:15:31,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:15:31,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:15:31,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:15:31,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:15:31,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:15:31,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:15:31,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:15:31,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:15:31,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:15:31,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:15:31,793 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:15:31,793 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_1db52924-981b-4ce1-a27d-bbd56019d13b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2022-12-13 14:15:31,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:15:32,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:15:32,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:15:32,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:15:32,013 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:15:32,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2022-12-13 14:15:34,680 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:15:34,848 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:15:34,849 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2022-12-13 14:15:34,859 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/data/830c8a379/8dbb74b1b6f54370acddaaff9f26f072/FLAGf4fb1b26d [2022-12-13 14:15:34,870 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/data/830c8a379/8dbb74b1b6f54370acddaaff9f26f072 [2022-12-13 14:15:34,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:15:34,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:15:34,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:15:34,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:15:34,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:15:34,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:15:34" (1/1) ... [2022-12-13 14:15:34,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a815cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:34, skipping insertion in model container [2022-12-13 14:15:34,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:15:34" (1/1) ... [2022-12-13 14:15:34,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:15:34,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:15:35,022 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_1db52924-981b-4ce1-a27d-bbd56019d13b/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2022-12-13 14:15:35,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:15:35,153 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:15:35,161 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_1db52924-981b-4ce1-a27d-bbd56019d13b/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2022-12-13 14:15:35,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:15:35,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:15:35,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:15:35,221 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:15:35,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35 WrapperNode [2022-12-13 14:15:35,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:15:35,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:15:35,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:15:35,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:15:35,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,253 INFO L138 Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2022-12-13 14:15:35,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:15:35,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:15:35,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:15:35,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:15:35,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:15:35,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:15:35,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:15:35,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:15:35,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (1/1) ... [2022-12-13 14:15:35,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:15:35,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:15:35,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:15:35,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:15:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 14:15:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 14:15:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 14:15:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 14:15:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 14:15:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 14:15:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 14:15:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 14:15:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:15:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:15:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:15:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:15:35,345 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 14:15:35,468 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:15:35,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:15:35,797 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:15:35,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:15:35,925 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:15:35,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:15:35 BoogieIcfgContainer [2022-12-13 14:15:35,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:15:35,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:15:35,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:15:35,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:15:35,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:15:34" (1/3) ... [2022-12-13 14:15:35,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f5f5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:15:35, skipping insertion in model container [2022-12-13 14:15:35,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:15:35" (2/3) ... [2022-12-13 14:15:35,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f5f5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:15:35, skipping insertion in model container [2022-12-13 14:15:35,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:15:35" (3/3) ... [2022-12-13 14:15:35,933 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_rmo.i [2022-12-13 14:15:35,940 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:15:35,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:15:35,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 14:15:35,947 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:15:35,991 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 14:15:36,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 161 transitions, 342 flow [2022-12-13 14:15:36,058 INFO L130 PetriNetUnfolder]: 2/157 cut-off events. [2022-12-13 14:15:36,058 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:15:36,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 2/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-13 14:15:36,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 161 transitions, 342 flow [2022-12-13 14:15:36,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 157 transitions, 326 flow [2022-12-13 14:15:36,070 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:15:36,077 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 157 transitions, 326 flow [2022-12-13 14:15:36,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 157 transitions, 326 flow [2022-12-13 14:15:36,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 326 flow [2022-12-13 14:15:36,102 INFO L130 PetriNetUnfolder]: 2/157 cut-off events. [2022-12-13 14:15:36,102 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:15:36,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 2/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-13 14:15:36,105 INFO L119 LiptonReduction]: Number of co-enabled transitions 3732 [2022-12-13 14:15:42,491 INFO L134 LiptonReduction]: Checked pairs total: 13319 [2022-12-13 14:15:42,491 INFO L136 LiptonReduction]: Total number of compositions: 134 [2022-12-13 14:15:42,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:15:42,505 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;@6fd988f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:15:42,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-13 14:15:42,508 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 14:15:42,508 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:15:42,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:15:42,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:15:42,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 14:15:42,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:15:42,513 INFO L85 PathProgramCache]: Analyzing trace with hash 707662252, now seen corresponding path program 1 times [2022-12-13 14:15:42,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:15:42,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775639114] [2022-12-13 14:15:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:15:42,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:15:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:15:42,730 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 14:15:42,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:15:42,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775639114] [2022-12-13 14:15:42,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775639114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:15:42,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:15:42,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:15:42,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025455634] [2022-12-13 14:15:42,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:15:42,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:15:42,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:15:42,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:15:42,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:15:42,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 295 [2022-12-13 14:15:42,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:42,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:15:42,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 295 [2022-12-13 14:15:42,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:15:43,550 INFO L130 PetriNetUnfolder]: 4811/6820 cut-off events. [2022-12-13 14:15:43,551 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-12-13 14:15:43,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13796 conditions, 6820 events. 4811/6820 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 37833 event pairs, 1461 based on Foata normal form. 0/4521 useless extension candidates. Maximal degree in co-relation 13784. Up to 6455 conditions per place. [2022-12-13 14:15:43,606 INFO L137 encePairwiseOnDemand]: 282/295 looper letters, 41 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2022-12-13 14:15:43,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 213 flow [2022-12-13 14:15:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:15:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:15:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2022-12-13 14:15:43,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5254237288135594 [2022-12-13 14:15:43,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2022-12-13 14:15:43,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2022-12-13 14:15:43,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:15:43,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2022-12-13 14:15:43,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:43,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:43,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:43,636 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 76 flow. Second operand 3 states and 465 transitions. [2022-12-13 14:15:43,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 213 flow [2022-12-13 14:15:43,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 14:15:43,641 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 119 flow [2022-12-13 14:15:43,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2022-12-13 14:15:43,645 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2022-12-13 14:15:43,645 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 119 flow [2022-12-13 14:15:43,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:43,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:15:43,646 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:15:43,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:15:43,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 14:15:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:15:43,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1249623925, now seen corresponding path program 1 times [2022-12-13 14:15:43,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:15:43,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876557565] [2022-12-13 14:15:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:15:43,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:15:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:15:43,744 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 14:15:43,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:15:43,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876557565] [2022-12-13 14:15:43,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876557565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:15:43,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:15:43,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:15:43,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679982353] [2022-12-13 14:15:43,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:15:43,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:15:43,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:15:43,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:15:43,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:15:43,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 295 [2022-12-13 14:15:43,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:43,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:15:43,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 295 [2022-12-13 14:15:43,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:15:44,232 INFO L130 PetriNetUnfolder]: 2531/3616 cut-off events. [2022-12-13 14:15:44,232 INFO L131 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2022-12-13 14:15:44,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9199 conditions, 3616 events. 2531/3616 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 17820 event pairs, 605 based on Foata normal form. 0/2879 useless extension candidates. Maximal degree in co-relation 9188. Up to 3250 conditions per place. [2022-12-13 14:15:44,250 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 37 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2022-12-13 14:15:44,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 221 flow [2022-12-13 14:15:44,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:15:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:15:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 594 transitions. [2022-12-13 14:15:44,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5033898305084745 [2022-12-13 14:15:44,255 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 594 transitions. [2022-12-13 14:15:44,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 594 transitions. [2022-12-13 14:15:44,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:15:44,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 594 transitions. [2022-12-13 14:15:44,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.5) internal successors, (594), 4 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,260 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,260 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 119 flow. Second operand 4 states and 594 transitions. [2022-12-13 14:15:44,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 221 flow [2022-12-13 14:15:44,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:15:44,261 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 108 flow [2022-12-13 14:15:44,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2022-12-13 14:15:44,262 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2022-12-13 14:15:44,262 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 108 flow [2022-12-13 14:15:44,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:15:44,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:15:44,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:15:44,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 14:15:44,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:15:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash 162709676, now seen corresponding path program 1 times [2022-12-13 14:15:44,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:15:44,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252732074] [2022-12-13 14:15:44,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:15:44,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:15:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:15:44,337 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 14:15:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:15:44,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252732074] [2022-12-13 14:15:44,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252732074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:15:44,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:15:44,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:15:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559988525] [2022-12-13 14:15:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:15:44,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:15:44,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:15:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:15:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:15:44,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 295 [2022-12-13 14:15:44,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:15:44,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 295 [2022-12-13 14:15:44,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:15:44,677 INFO L130 PetriNetUnfolder]: 1466/2153 cut-off events. [2022-12-13 14:15:44,677 INFO L131 PetriNetUnfolder]: For 614/614 co-relation queries the response was YES. [2022-12-13 14:15:44,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5420 conditions, 2153 events. 1466/2153 cut-off events. For 614/614 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9775 event pairs, 263 based on Foata normal form. 0/1960 useless extension candidates. Maximal degree in co-relation 5408. Up to 1096 conditions per place. [2022-12-13 14:15:44,684 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 49 selfloop transitions, 9 changer transitions 0/62 dead transitions. [2022-12-13 14:15:44,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 302 flow [2022-12-13 14:15:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:15:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:15:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 610 transitions. [2022-12-13 14:15:44,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5169491525423728 [2022-12-13 14:15:44,686 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 610 transitions. [2022-12-13 14:15:44,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 610 transitions. [2022-12-13 14:15:44,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:15:44,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 610 transitions. [2022-12-13 14:15:44,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,689 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,689 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 108 flow. Second operand 4 states and 610 transitions. [2022-12-13 14:15:44,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 302 flow [2022-12-13 14:15:44,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:15:44,691 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 160 flow [2022-12-13 14:15:44,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2022-12-13 14:15:44,691 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2022-12-13 14:15:44,691 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 160 flow [2022-12-13 14:15:44,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:15:44,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:15:44,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:15:44,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 14:15:44,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:15:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash 907826402, now seen corresponding path program 1 times [2022-12-13 14:15:44,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:15:44,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521563460] [2022-12-13 14:15:44,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:15:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:15:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:15:44,768 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 14:15:44,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:15:44,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521563460] [2022-12-13 14:15:44,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521563460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:15:44,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:15:44,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:15:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796972009] [2022-12-13 14:15:44,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:15:44,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:15:44,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:15:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:15:44,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:15:44,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 295 [2022-12-13 14:15:44,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 139.4) internal successors, (697), 5 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:44,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:15:44,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 295 [2022-12-13 14:15:44,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:15:45,107 INFO L130 PetriNetUnfolder]: 1229/1778 cut-off events. [2022-12-13 14:15:45,107 INFO L131 PetriNetUnfolder]: For 1236/1236 co-relation queries the response was YES. [2022-12-13 14:15:45,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5347 conditions, 1778 events. 1229/1778 cut-off events. For 1236/1236 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7548 event pairs, 219 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 5334. Up to 692 conditions per place. [2022-12-13 14:15:45,116 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 55 selfloop transitions, 13 changer transitions 4/76 dead transitions. [2022-12-13 14:15:45,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 76 transitions, 412 flow [2022-12-13 14:15:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:15:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:15:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 761 transitions. [2022-12-13 14:15:45,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5159322033898305 [2022-12-13 14:15:45,118 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 761 transitions. [2022-12-13 14:15:45,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 761 transitions. [2022-12-13 14:15:45,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:15:45,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 761 transitions. [2022-12-13 14:15:45,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.2) internal successors, (761), 5 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,122 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,122 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 160 flow. Second operand 5 states and 761 transitions. [2022-12-13 14:15:45,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 76 transitions, 412 flow [2022-12-13 14:15:45,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 394 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 14:15:45,125 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 184 flow [2022-12-13 14:15:45,125 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2022-12-13 14:15:45,126 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2022-12-13 14:15:45,126 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 184 flow [2022-12-13 14:15:45,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.4) internal successors, (697), 5 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:15:45,127 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] [2022-12-13 14:15:45,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:15:45,127 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 14:15:45,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:15:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash -147626044, now seen corresponding path program 1 times [2022-12-13 14:15:45,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:15:45,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134910065] [2022-12-13 14:15:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:15:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:15:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:15:45,234 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 14:15:45,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:15:45,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134910065] [2022-12-13 14:15:45,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134910065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:15:45,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:15:45,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:15:45,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994604390] [2022-12-13 14:15:45,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:15:45,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:15:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:15:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:15:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:15:45,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 295 [2022-12-13 14:15:45,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:15:45,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 295 [2022-12-13 14:15:45,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:15:45,559 INFO L130 PetriNetUnfolder]: 1202/1731 cut-off events. [2022-12-13 14:15:45,560 INFO L131 PetriNetUnfolder]: For 1618/1618 co-relation queries the response was YES. [2022-12-13 14:15:45,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5360 conditions, 1731 events. 1202/1731 cut-off events. For 1618/1618 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7380 event pairs, 219 based on Foata normal form. 16/1732 useless extension candidates. Maximal degree in co-relation 5346. Up to 692 conditions per place. [2022-12-13 14:15:45,565 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2022-12-13 14:15:45,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 364 flow [2022-12-13 14:15:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:15:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:15:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 890 transitions. [2022-12-13 14:15:45,568 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5028248587570622 [2022-12-13 14:15:45,568 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 890 transitions. [2022-12-13 14:15:45,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 890 transitions. [2022-12-13 14:15:45,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:15:45,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 890 transitions. [2022-12-13 14:15:45,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 148.33333333333334) internal successors, (890), 6 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,572 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,572 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 184 flow. Second operand 6 states and 890 transitions. [2022-12-13 14:15:45,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 364 flow [2022-12-13 14:15:45,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 309 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-13 14:15:45,585 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2022-12-13 14:15:45,586 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2022-12-13 14:15:45,586 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2022-12-13 14:15:45,586 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2022-12-13 14:15:45,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:15:45,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-12-13 14:15:45,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-12-13 14:15:45,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-12-13 14:15:45,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-12-13 14:15:45,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-12-13 14:15:45,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-12-13 14:15:45,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-12-13 14:15:45,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:15:45,591 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 14:15:45,596 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:15:45,596 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:15:45,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:15:45 BasicIcfg [2022-12-13 14:15:45,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:15:45,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:15:45,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:15:45,599 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:15:45,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:15:35" (3/4) ... [2022-12-13 14:15:45,601 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:15:45,605 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 14:15:45,605 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 14:15:45,605 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 14:15:45,605 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-13 14:15:45,608 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-12-13 14:15:45,609 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 14:15:45,609 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 14:15:45,609 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:15:45,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:15:45,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:15:45,638 INFO L158 Benchmark]: Toolchain (without parser) took 10765.46ms. Allocated memory was 132.1MB in the beginning and 352.3MB in the end (delta: 220.2MB). Free memory was 96.5MB in the beginning and 165.5MB in the end (delta: -69.1MB). Peak memory consumption was 152.6MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,638 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:15:45,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.00ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 69.2MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.85ms. Allocated memory is still 132.1MB. Free memory was 69.2MB in the beginning and 66.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,639 INFO L158 Benchmark]: Boogie Preprocessor took 23.59ms. Allocated memory is still 132.1MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,639 INFO L158 Benchmark]: RCFGBuilder took 648.96ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 64.6MB in the beginning and 99.7MB in the end (delta: -35.1MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,640 INFO L158 Benchmark]: TraceAbstraction took 9669.77ms. Allocated memory was 159.4MB in the beginning and 352.3MB in the end (delta: 192.9MB). Free memory was 98.5MB in the beginning and 168.7MB in the end (delta: -70.1MB). Peak memory consumption was 172.1MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,640 INFO L158 Benchmark]: Witness Printer took 38.82ms. Allocated memory is still 352.3MB. Free memory was 168.7MB in the beginning and 165.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:15:45,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.00ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 69.2MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.85ms. Allocated memory is still 132.1MB. Free memory was 69.2MB in the beginning and 66.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.59ms. Allocated memory is still 132.1MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.96ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 64.6MB in the beginning and 99.7MB in the end (delta: -35.1MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9669.77ms. Allocated memory was 159.4MB in the beginning and 352.3MB in the end (delta: 192.9MB). Free memory was 98.5MB in the beginning and 168.7MB in the end (delta: -70.1MB). Peak memory consumption was 172.1MB. Max. memory is 16.1GB. * Witness Printer took 38.82ms. Allocated memory is still 352.3MB. Free memory was 168.7MB in the beginning and 165.5MB 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: 6.4s, 168 PlacesBefore, 45 PlacesAfterwards, 157 TransitionsBefore, 32 TransitionsAfterwards, 3732 CoEnabledTransitionPairs, 8 FixpointIterations, 67 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 134 TotalNumberOfCompositions, 13319 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6148, independent: 5781, independent conditional: 0, independent unconditional: 5781, dependent: 367, dependent conditional: 0, dependent unconditional: 367, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1895, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6148, independent: 3941, independent conditional: 0, independent unconditional: 3941, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 1895, unknown conditional: 0, unknown unconditional: 1895] , Statistics on independence cache: Total cache size (in pairs): 192, Positive cache size: 170, Positive conditional cache size: 0, Positive unconditional cache size: 170, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: 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 9 procedures, 201 locations, 20 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: 9.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 11 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 14:15:45,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db52924-981b-4ce1-a27d-bbd56019d13b/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