./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R --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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- 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-38b53e6 [2022-11-25 17:18:39,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:18:39,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:18:39,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:18:39,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:18:39,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:18:39,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:18:39,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:18:39,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:18:39,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:18:39,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:18:39,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:18:39,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:18:39,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:18:39,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:18:39,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:18:39,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:18:39,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:18:39,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:18:39,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:18:39,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:18:39,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:18:39,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:18:39,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:18:39,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:18:39,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:18:39,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:18:39,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:18:39,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:18:39,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:18:39,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:18:39,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:18:39,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:18:39,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:18:39,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:18:39,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:18:39,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:18:39,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:18:39,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:18:39,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:18:39,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:18:39,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:18:39,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:18:39,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:18:39,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:18:39,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:18:39,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:18:39,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:18:39,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:18:39,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:18:39,166 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:18:39,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:18:39,166 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:18:39,166 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:18:39,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:18:39,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:18:39,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:18:39,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:18:39,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:18:39,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:18:39,168 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:18:39,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:18:39,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:18:39,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:18:39,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:18:39,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:18:39,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:18:39,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:18:39,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:18:39,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:18:39,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:18:39,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:18:39,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:18:39,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:18:39,170 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:18:39,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:18:39,171 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:18:39,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:18:39,171 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_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2022-11-25 17:18:39,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:18:39,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:18:39,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:18:39,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:18:39,450 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:18:39,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-25 17:18:42,671 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:18:43,025 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:18:43,026 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-25 17:18:43,043 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/data/4b3c69492/d300901bc58246d685284baa394c42c1/FLAG5d198ef96 [2022-11-25 17:18:43,063 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/data/4b3c69492/d300901bc58246d685284baa394c42c1 [2022-11-25 17:18:43,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:18:43,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:18:43,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:18:43,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:18:43,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:18:43,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80103cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43, skipping insertion in model container [2022-11-25 17:18:43,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:18:43,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:18:43,351 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_55bd65ae-1385-4924-bb16-b2700b2010b8/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-11-25 17:18:43,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:18:43,637 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:18:43,656 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_55bd65ae-1385-4924-bb16-b2700b2010b8/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-11-25 17:18:43,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:18:43,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:18:43,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:18:43,779 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:18:43,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43 WrapperNode [2022-11-25 17:18:43,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:18:43,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:18:43,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:18:43,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:18:43,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,856 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2022-11-25 17:18:43,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:18:43,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:18:43,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:18:43,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:18:43,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:18:43,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:18:43,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:18:43,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:18:43,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (1/1) ... [2022-11-25 17:18:43,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:18:43,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:43,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:18:43,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:18:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:18:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:18:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:18:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:18:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:18:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 17:18:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 17:18:44,009 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 17:18:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 17:18:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 17:18:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 17:18:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 17:18:44,010 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 17:18:44,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:18:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:18:44,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:18:44,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:18:44,012 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:18:44,264 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:18:44,266 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:18:44,517 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:18:44,547 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:18:44,550 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:18:44,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:44 BoogieIcfgContainer [2022-11-25 17:18:44,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:18:44,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:18:44,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:18:44,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:18:44,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:18:43" (1/3) ... [2022-11-25 17:18:44,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be844a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:44, skipping insertion in model container [2022-11-25 17:18:44,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:43" (2/3) ... [2022-11-25 17:18:44,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be844a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:44, skipping insertion in model container [2022-11-25 17:18:44,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:44" (3/3) ... [2022-11-25 17:18:44,569 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-25 17:18:44,588 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:18:44,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:18:44,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:18:44,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:18:44,691 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:18:44,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 248 flow [2022-11-25 17:18:44,779 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2022-11-25 17:18:44,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:18:44,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-25 17:18:44,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 114 transitions, 248 flow [2022-11-25 17:18:44,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 110 transitions, 232 flow [2022-11-25 17:18:44,793 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:18:44,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 110 transitions, 232 flow [2022-11-25 17:18:44,809 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 110 transitions, 232 flow [2022-11-25 17:18:44,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 110 transitions, 232 flow [2022-11-25 17:18:44,851 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2022-11-25 17:18:44,852 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:18:44,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-25 17:18:44,860 INFO L119 LiptonReduction]: Number of co-enabled transitions 3298 [2022-11-25 17:18:48,447 INFO L134 LiptonReduction]: Checked pairs total: 7134 [2022-11-25 17:18:48,447 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-11-25 17:18:48,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:18:48,477 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;@7f190447, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:18:48,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-25 17:18:48,488 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 17:18:48,488 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:18:48,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:18:48,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:18:48,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:18:48,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:48,495 INFO L85 PathProgramCache]: Analyzing trace with hash 12645814, now seen corresponding path program 1 times [2022-11-25 17:18:48,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:48,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352296656] [2022-11-25 17:18:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:48,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:48,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:48,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352296656] [2022-11-25 17:18:48,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352296656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:48,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:48,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:18:48,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322012961] [2022-11-25 17:18:48,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:48,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:48,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:48,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2022-11-25 17:18:48,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:48,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:18:48,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2022-11-25 17:18:48,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:18:49,501 INFO L130 PetriNetUnfolder]: 3036/4367 cut-off events. [2022-11-25 17:18:49,501 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-11-25 17:18:49,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8907 conditions, 4367 events. 3036/4367 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 23366 event pairs, 999 based on Foata normal form. 70/3256 useless extension candidates. Maximal degree in co-relation 8895. Up to 4171 conditions per place. [2022-11-25 17:18:49,577 INFO L137 encePairwiseOnDemand]: 196/209 looper letters, 37 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2022-11-25 17:18:49,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 193 flow [2022-11-25 17:18:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:18:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2022-11-25 17:18:49,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.529505582137161 [2022-11-25 17:18:49,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2022-11-25 17:18:49,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2022-11-25 17:18:49,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:18:49,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2022-11-25 17:18:49,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:49,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:49,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:49,620 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 68 flow. Second operand 3 states and 332 transitions. [2022-11-25 17:18:49,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 193 flow [2022-11-25 17:18:49,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 186 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 17:18:49,626 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 111 flow [2022-11-25 17:18:49,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2022-11-25 17:18:49,632 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2022-11-25 17:18:49,632 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 111 flow [2022-11-25 17:18:49,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:49,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:18:49,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:49,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:18:49,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:18:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash 604482224, now seen corresponding path program 1 times [2022-11-25 17:18:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:49,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17673080] [2022-11-25 17:18:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:49,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:49,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17673080] [2022-11-25 17:18:49,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17673080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:49,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:49,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:18:49,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777665773] [2022-11-25 17:18:49,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:49,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:18:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:49,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:18:49,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:18:49,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2022-11-25 17:18:49,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:49,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:18:49,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2022-11-25 17:18:49,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:18:50,162 INFO L130 PetriNetUnfolder]: 1540/2237 cut-off events. [2022-11-25 17:18:50,162 INFO L131 PetriNetUnfolder]: For 120/126 co-relation queries the response was YES. [2022-11-25 17:18:50,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5834 conditions, 2237 events. 1540/2237 cut-off events. For 120/126 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10635 event pairs, 387 based on Foata normal form. 494/2236 useless extension candidates. Maximal degree in co-relation 5823. Up to 2040 conditions per place. [2022-11-25 17:18:50,178 INFO L137 encePairwiseOnDemand]: 200/209 looper letters, 33 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-11-25 17:18:50,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 201 flow [2022-11-25 17:18:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:18:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:18:50,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 418 transitions. [2022-11-25 17:18:50,183 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-11-25 17:18:50,183 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 418 transitions. [2022-11-25 17:18:50,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 418 transitions. [2022-11-25 17:18:50,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:18:50,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 418 transitions. [2022-11-25 17:18:50,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,192 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,192 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 111 flow. Second operand 4 states and 418 transitions. [2022-11-25 17:18:50,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 201 flow [2022-11-25 17:18:50,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:18:50,195 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 100 flow [2022-11-25 17:18:50,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2022-11-25 17:18:50,196 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2022-11-25 17:18:50,196 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 100 flow [2022-11-25 17:18:50,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:18:50,197 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:18:50,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:18:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash 536994581, now seen corresponding path program 1 times [2022-11-25 17:18:50,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659653501] [2022-11-25 17:18:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:50,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:50,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659653501] [2022-11-25 17:18:50,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659653501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:50,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:50,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:18:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310560432] [2022-11-25 17:18:50,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:50,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:18:50,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:50,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:18:50,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:18:50,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2022-11-25 17:18:50,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:18:50,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2022-11-25 17:18:50,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:18:50,605 INFO L130 PetriNetUnfolder]: 868/1303 cut-off events. [2022-11-25 17:18:50,605 INFO L131 PetriNetUnfolder]: For 368/374 co-relation queries the response was YES. [2022-11-25 17:18:50,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3377 conditions, 1303 events. 868/1303 cut-off events. For 368/374 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5643 event pairs, 148 based on Foata normal form. 4/1176 useless extension candidates. Maximal degree in co-relation 3365. Up to 707 conditions per place. [2022-11-25 17:18:50,616 INFO L137 encePairwiseOnDemand]: 200/209 looper letters, 43 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2022-11-25 17:18:50,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 274 flow [2022-11-25 17:18:50,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:18:50,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:18:50,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2022-11-25 17:18:50,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5167464114832536 [2022-11-25 17:18:50,618 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2022-11-25 17:18:50,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2022-11-25 17:18:50,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:18:50,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2022-11-25 17:18:50,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,624 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,624 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 100 flow. Second operand 4 states and 432 transitions. [2022-11-25 17:18:50,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 274 flow [2022-11-25 17:18:50,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:18:50,626 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 152 flow [2022-11-25 17:18:50,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2022-11-25 17:18:50,627 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2022-11-25 17:18:50,628 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 152 flow [2022-11-25 17:18:50,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:18:50,629 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:50,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:18:50,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:18:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1377536994, now seen corresponding path program 1 times [2022-11-25 17:18:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:50,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85523044] [2022-11-25 17:18:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:50,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:50,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85523044] [2022-11-25 17:18:50,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85523044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:50,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:50,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:50,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37688605] [2022-11-25 17:18:50,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:50,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:18:50,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:50,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:18:50,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:18:50,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2022-11-25 17:18:50,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:50,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:18:50,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2022-11-25 17:18:50,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:18:50,995 INFO L130 PetriNetUnfolder]: 712/1051 cut-off events. [2022-11-25 17:18:50,995 INFO L131 PetriNetUnfolder]: For 754/766 co-relation queries the response was YES. [2022-11-25 17:18:50,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3294 conditions, 1051 events. 712/1051 cut-off events. For 754/766 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4231 event pairs, 115 based on Foata normal form. 8/1042 useless extension candidates. Maximal degree in co-relation 3281. Up to 405 conditions per place. [2022-11-25 17:18:51,003 INFO L137 encePairwiseOnDemand]: 200/209 looper letters, 47 selfloop transitions, 13 changer transitions 4/66 dead transitions. [2022-11-25 17:18:51,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 66 transitions, 376 flow [2022-11-25 17:18:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:18:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:18:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2022-11-25 17:18:51,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5148325358851674 [2022-11-25 17:18:51,007 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2022-11-25 17:18:51,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2022-11-25 17:18:51,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:18:51,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2022-11-25 17:18:51,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,012 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 152 flow. Second operand 5 states and 538 transitions. [2022-11-25 17:18:51,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 66 transitions, 376 flow [2022-11-25 17:18:51,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 66 transitions, 358 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-25 17:18:51,016 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 176 flow [2022-11-25 17:18:51,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2022-11-25 17:18:51,017 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-11-25 17:18:51,018 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 176 flow [2022-11-25 17:18:51,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:18:51,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:51,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:18:51,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 17:18:51,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:51,019 INFO L85 PathProgramCache]: Analyzing trace with hash -902484936, now seen corresponding path program 1 times [2022-11-25 17:18:51,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:51,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136084127] [2022-11-25 17:18:51,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:51,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:51,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:51,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136084127] [2022-11-25 17:18:51,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136084127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:51,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:51,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:18:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059299638] [2022-11-25 17:18:51,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:51,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:18:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:18:51,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:18:51,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2022-11-25 17:18:51,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:18:51,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2022-11-25 17:18:51,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:18:51,387 INFO L130 PetriNetUnfolder]: 693/1017 cut-off events. [2022-11-25 17:18:51,387 INFO L131 PetriNetUnfolder]: For 1020/1032 co-relation queries the response was YES. [2022-11-25 17:18:51,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1017 events. 693/1017 cut-off events. For 1020/1032 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4075 event pairs, 115 based on Foata normal form. 20/1032 useless extension candidates. Maximal degree in co-relation 3279. Up to 400 conditions per place. [2022-11-25 17:18:51,392 INFO L137 encePairwiseOnDemand]: 200/209 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2022-11-25 17:18:51,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 328 flow [2022-11-25 17:18:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:18:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:18:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 624 transitions. [2022-11-25 17:18:51,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49760765550239233 [2022-11-25 17:18:51,397 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 624 transitions. [2022-11-25 17:18:51,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 624 transitions. [2022-11-25 17:18:51,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:18:51,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 624 transitions. [2022-11-25 17:18:51,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,403 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,403 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 176 flow. Second operand 6 states and 624 transitions. [2022-11-25 17:18:51,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 328 flow [2022-11-25 17:18:51,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 273 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-25 17:18:51,420 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2022-11-25 17:18:51,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2022-11-25 17:18:51,421 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2022-11-25 17:18:51,421 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2022-11-25 17:18:51,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:51,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-25 17:18:51,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-25 17:18:51,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-25 17:18:51,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-25 17:18:51,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-25 17:18:51,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-25 17:18:51,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-25 17:18:51,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-25 17:18:51,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-25 17:18:51,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-25 17:18:51,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-25 17:18:51,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-25 17:18:51,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-25 17:18:51,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-25 17:18:51,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-25 17:18:51,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-25 17:18:51,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-25 17:18:51,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-25 17:18:51,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-25 17:18:51,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-25 17:18:51,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:18:51,430 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 17:18:51,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:18:51,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:18:51,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:18:51 BasicIcfg [2022-11-25 17:18:51,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:18:51,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:18:51,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:18:51,440 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:18:51,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:44" (3/4) ... [2022-11-25 17:18:51,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:18:51,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 17:18:51,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 17:18:51,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 17:18:51,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-25 17:18:51,454 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-25 17:18:51,454 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 17:18:51,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:18:51,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:18:51,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:18:51,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:18:51,488 INFO L158 Benchmark]: Toolchain (without parser) took 8418.26ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 110.6MB in the beginning and 133.6MB in the end (delta: -22.9MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,489 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory was 129.2MB in the beginning and 129.0MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:18:51,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 708.73ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 86.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.94ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 84.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,494 INFO L158 Benchmark]: Boogie Preprocessor took 58.37ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,494 INFO L158 Benchmark]: RCFGBuilder took 637.28ms. Allocated memory is still 155.2MB. Free memory was 82.9MB in the beginning and 116.3MB in the end (delta: -33.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,495 INFO L158 Benchmark]: TraceAbstraction took 6878.80ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 115.6MB in the beginning and 135.7MB in the end (delta: -20.1MB). Peak memory consumption was 144.2MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,495 INFO L158 Benchmark]: Witness Printer took 47.88ms. Allocated memory is still 239.1MB. Free memory was 135.7MB in the beginning and 133.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:51,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory was 129.2MB in the beginning and 129.0MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 708.73ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 86.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.94ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 84.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.37ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 637.28ms. Allocated memory is still 155.2MB. Free memory was 82.9MB in the beginning and 116.3MB in the end (delta: -33.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6878.80ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 115.6MB in the beginning and 135.7MB in the end (delta: -20.1MB). Peak memory consumption was 144.2MB. Max. memory is 16.1GB. * Witness Printer took 47.88ms. Allocated memory is still 239.1MB. Free memory was 135.7MB in the beginning and 133.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 121 PlacesBefore, 41 PlacesAfterwards, 110 TransitionsBefore, 28 TransitionsAfterwards, 3298 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 95 TotalNumberOfCompositions, 7134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3947, independent: 3781, independent conditional: 0, independent unconditional: 3781, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2163, independent: 2125, independent conditional: 0, independent unconditional: 2125, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2163, independent: 2072, independent conditional: 0, independent unconditional: 2072, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 91, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3947, independent: 1656, independent conditional: 0, independent unconditional: 1656, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 2163, unknown conditional: 0, unknown unconditional: 2163] , Statistics on independence cache: Total cache size (in pairs): 224, Positive cache size: 206, Positive conditional cache size: 0, Positive unconditional cache size: 206, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 736]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 736]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: 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, 151 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: 6.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 187 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 3 mSDtfsCounter, 344 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=176occurred 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, 0.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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! [2022-11-25 17:18:51,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55bd65ae-1385-4924-bb16-b2700b2010b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE