./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:42:10,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:42:10,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:42:10,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:42:10,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:42:10,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:42:10,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:42:10,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:42:10,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:42:10,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:42:10,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:42:10,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:42:10,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:42:10,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:42:10,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:42:10,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:42:10,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:42:10,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:42:10,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:42:10,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:42:10,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:42:10,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:42:10,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:42:10,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:42:10,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:42:10,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:42:10,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:42:10,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:42:10,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:42:10,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:42:10,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:42:10,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:42:10,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:42:10,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:42:10,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:42:10,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:42:10,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:42:10,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:42:10,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:42:10,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:42:10,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:42:10,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 16:42:10,673 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:42:10,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:42:10,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:42:10,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:42:10,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:42:10,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:42:10,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:42:10,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:42:10,680 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:42:10,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:42:10,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:42:10,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:42:10,682 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:42:10,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:42:10,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:42:10,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:42:10,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:42:10,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:42:10,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:42:10,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:42:10,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:42:10,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:42:10,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:42:10,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:42:10,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:42:10,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:42:10,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:42:10,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:42:10,684 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:42:10,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:42:10,684 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:42:10,684 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_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2022-12-13 16:42:10,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:42:10,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:42:10,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:42:10,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:42:10,895 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:42:10,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2022-12-13 16:42:13,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:42:13,711 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:42:13,712 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2022-12-13 16:42:13,724 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/data/5baaa29dc/45bb5183689f438296917eec1547b2ad/FLAG3ce3444a9 [2022-12-13 16:42:13,738 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/data/5baaa29dc/45bb5183689f438296917eec1547b2ad [2022-12-13 16:42:13,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:42:13,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:42:13,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:42:13,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:42:13,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:42:13,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:42:13" (1/1) ... [2022-12-13 16:42:13,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b2ca35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:13, skipping insertion in model container [2022-12-13 16:42:13,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:42:13" (1/1) ... [2022-12-13 16:42:13,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:42:13,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:42:13,932 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_c4409b7c-cc2e-4de4-a945-006ff701fd5b/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2022-12-13 16:42:14,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:42:14,121 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:42:14,129 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_c4409b7c-cc2e-4de4-a945-006ff701fd5b/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2022-12-13 16:42:14,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:42:14,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:42:14,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:42:14,211 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:42:14,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14 WrapperNode [2022-12-13 16:42:14,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:42:14,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:42:14,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:42:14,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:42:14,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,260 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 205 [2022-12-13 16:42:14,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:42:14,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:42:14,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:42:14,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:42:14,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:42:14,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:42:14,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:42:14,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:42:14,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (1/1) ... [2022-12-13 16:42:14,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:42:14,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:42:14,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:42:14,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:42:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:42:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 16:42:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:42:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:42:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:42:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 16:42:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 16:42:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 16:42:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 16:42:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:42:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 16:42:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:42:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:42:14,360 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:42:14,466 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:42:14,467 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:42:14,803 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:42:14,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:42:14,916 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:42:14,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:42:14 BoogieIcfgContainer [2022-12-13 16:42:14,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:42:14,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:42:14,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:42:14,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:42:14,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:42:13" (1/3) ... [2022-12-13 16:42:14,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3464abf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:42:14, skipping insertion in model container [2022-12-13 16:42:14,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:42:14" (2/3) ... [2022-12-13 16:42:14,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3464abf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:42:14, skipping insertion in model container [2022-12-13 16:42:14,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:42:14" (3/3) ... [2022-12-13 16:42:14,924 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2022-12-13 16:42:14,930 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:42:14,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:42:14,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 16:42:14,938 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:42:14,978 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:42:15,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 115 transitions, 240 flow [2022-12-13 16:42:15,038 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-13 16:42:15,038 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:15,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-13 16:42:15,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 115 transitions, 240 flow [2022-12-13 16:42:15,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 113 transitions, 232 flow [2022-12-13 16:42:15,051 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:42:15,061 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 113 transitions, 232 flow [2022-12-13 16:42:15,064 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 113 transitions, 232 flow [2022-12-13 16:42:15,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 113 transitions, 232 flow [2022-12-13 16:42:15,091 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-13 16:42:15,092 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:15,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-13 16:42:15,109 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-12-13 16:42:19,216 INFO L134 LiptonReduction]: Checked pairs total: 5371 [2022-12-13 16:42:19,216 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-12-13 16:42:19,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:42:19,230 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;@2fee3d39, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:42:19,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 16:42:19,234 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-13 16:42:19,234 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:42:19,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:19,235 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:42:19,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 16:42:19,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash 474453616, now seen corresponding path program 1 times [2022-12-13 16:42:19,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:19,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599565632] [2022-12-13 16:42:19,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:19,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:19,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:19,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599565632] [2022-12-13 16:42:19,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599565632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:19,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:19,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:42:19,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97940834] [2022-12-13 16:42:19,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:19,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:42:19,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:19,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:42:19,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:42:19,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 215 [2022-12-13 16:42:19,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 50 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) [2022-12-13 16:42:19,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:19,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 215 [2022-12-13 16:42:19,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:19,720 INFO L130 PetriNetUnfolder]: 265/462 cut-off events. [2022-12-13 16:42:19,721 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 16:42:19,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 462 events. 265/462 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1658 event pairs, 175 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 932. Up to 306 conditions per place. [2022-12-13 16:42:19,724 INFO L137 encePairwiseOnDemand]: 208/215 looper letters, 33 selfloop transitions, 3 changer transitions 2/38 dead transitions. [2022-12-13 16:42:19,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 161 flow [2022-12-13 16:42:19,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:42:19,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:42:19,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2022-12-13 16:42:19,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49767441860465117 [2022-12-13 16:42:19,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2022-12-13 16:42:19,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2022-12-13 16:42:19,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:19,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2022-12-13 16:42:19,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:19,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:19,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:19,744 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 50 flow. Second operand 3 states and 321 transitions. [2022-12-13 16:42:19,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 161 flow [2022-12-13 16:42:19,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:42:19,748 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 65 flow [2022-12-13 16:42:19,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 16:42:19,752 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 16:42:19,752 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 65 flow [2022-12-13 16:42:19,752 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) [2022-12-13 16:42:19,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:19,752 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:42:19,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:42:19,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 16:42:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash 342648358, now seen corresponding path program 1 times [2022-12-13 16:42:19,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:19,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814865876] [2022-12-13 16:42:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:19,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:19,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:19,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814865876] [2022-12-13 16:42:19,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814865876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:19,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:19,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:42:19,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268255503] [2022-12-13 16:42:19,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:19,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:42:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:42:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:42:19,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 215 [2022-12-13 16:42:19,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:19,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:19,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 215 [2022-12-13 16:42:19,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:20,095 INFO L130 PetriNetUnfolder]: 252/437 cut-off events. [2022-12-13 16:42:20,095 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 16:42:20,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 437 events. 252/437 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1549 event pairs, 175 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 982. Up to 306 conditions per place. [2022-12-13 16:42:20,098 INFO L137 encePairwiseOnDemand]: 210/215 looper letters, 31 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2022-12-13 16:42:20,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 155 flow [2022-12-13 16:42:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:42:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 16:42:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2022-12-13 16:42:20,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4744186046511628 [2022-12-13 16:42:20,102 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 408 transitions. [2022-12-13 16:42:20,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 408 transitions. [2022-12-13 16:42:20,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:20,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 408 transitions. [2022-12-13 16:42:20,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,107 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,107 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 65 flow. Second operand 4 states and 408 transitions. [2022-12-13 16:42:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 155 flow [2022-12-13 16:42:20,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:42:20,109 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 60 flow [2022-12-13 16:42:20,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2022-12-13 16:42:20,110 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 16:42:20,110 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 60 flow [2022-12-13 16:42:20,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:42:20,111 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:42:20,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:42:20,112 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 16:42:20,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:20,112 INFO L85 PathProgramCache]: Analyzing trace with hash 342648359, now seen corresponding path program 1 times [2022-12-13 16:42:20,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:20,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906721773] [2022-12-13 16:42:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:20,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:20,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:20,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906721773] [2022-12-13 16:42:20,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906721773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:42:20,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:42:20,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:42:20,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854277026] [2022-12-13 16:42:20,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:42:20,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:42:20,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:42:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:42:20,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 215 [2022-12-13 16:42:20,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:42:20,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 215 [2022-12-13 16:42:20,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:42:20,351 INFO L130 PetriNetUnfolder]: 246/423 cut-off events. [2022-12-13 16:42:20,351 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2022-12-13 16:42:20,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 423 events. 246/423 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1500 event pairs, 175 based on Foata normal form. 8/431 useless extension candidates. Maximal degree in co-relation 946. Up to 306 conditions per place. [2022-12-13 16:42:20,352 INFO L137 encePairwiseOnDemand]: 210/215 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2022-12-13 16:42:20,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 146 flow [2022-12-13 16:42:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:42:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 16:42:20,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2022-12-13 16:42:20,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4720930232558139 [2022-12-13 16:42:20,353 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 406 transitions. [2022-12-13 16:42:20,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 406 transitions. [2022-12-13 16:42:20,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:42:20,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 406 transitions. [2022-12-13 16:42:20,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,356 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,356 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 60 flow. Second operand 4 states and 406 transitions. [2022-12-13 16:42:20,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 146 flow [2022-12-13 16:42:20,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 32 transitions, 139 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 16:42:20,357 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2022-12-13 16:42:20,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2022-12-13 16:42:20,358 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2022-12-13 16:42:20,358 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2022-12-13 16:42:20,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:20,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 16:42:20,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 16:42:20,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 16:42:20,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 16:42:20,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:42:20,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 16:42:20,365 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:42:20,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:42:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:42:20 BasicIcfg [2022-12-13 16:42:20,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:42:20,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:42:20,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:42:20,369 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:42:20,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:42:14" (3/4) ... [2022-12-13 16:42:20,371 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:42:20,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 16:42:20,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 16:42:20,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-12-13 16:42:20,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 16:42:20,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 16:42:20,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:42:20,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:42:20,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:42:20,411 INFO L158 Benchmark]: Toolchain (without parser) took 6670.20ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 108.5MB in the beginning and 171.7MB in the end (delta: -63.2MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,411 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:42:20,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.33ms. Allocated memory is still 148.9MB. Free memory was 108.5MB in the beginning and 78.0MB in the end (delta: 30.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.78ms. Allocated memory is still 148.9MB. Free memory was 78.0MB in the beginning and 74.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,412 INFO L158 Benchmark]: Boogie Preprocessor took 35.95ms. Allocated memory is still 148.9MB. Free memory was 74.4MB in the beginning and 71.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,412 INFO L158 Benchmark]: RCFGBuilder took 620.44ms. Allocated memory is still 148.9MB. Free memory was 71.8MB in the beginning and 77.2MB in the end (delta: -5.4MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,412 INFO L158 Benchmark]: TraceAbstraction took 5448.55ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 76.5MB in the beginning and 56.6MB in the end (delta: 19.8MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,413 INFO L158 Benchmark]: Witness Printer took 41.96ms. Allocated memory is still 207.6MB. Free memory was 55.6MB in the beginning and 171.7MB in the end (delta: -116.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:42:20,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.33ms. Allocated memory is still 148.9MB. Free memory was 108.5MB in the beginning and 78.0MB in the end (delta: 30.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.78ms. Allocated memory is still 148.9MB. Free memory was 78.0MB in the beginning and 74.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.95ms. Allocated memory is still 148.9MB. Free memory was 74.4MB in the beginning and 71.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.44ms. Allocated memory is still 148.9MB. Free memory was 71.8MB in the beginning and 77.2MB in the end (delta: -5.4MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5448.55ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 76.5MB in the beginning and 56.6MB in the end (delta: 19.8MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. * Witness Printer took 41.96ms. Allocated memory is still 207.6MB. Free memory was 55.6MB in the beginning and 171.7MB in the end (delta: -116.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 118 PlacesBefore, 29 PlacesAfterwards, 113 TransitionsBefore, 22 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 100 TotalNumberOfCompositions, 5371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2009, independent: 1776, independent conditional: 0, independent unconditional: 1776, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 903, independent: 852, independent conditional: 0, independent unconditional: 852, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2009, independent: 924, independent conditional: 0, independent unconditional: 924, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 903, unknown conditional: 0, unknown unconditional: 903] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 139 locations, 10 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: 5.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 4 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 16:42:20,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4409b7c-cc2e-4de4-a945-006ff701fd5b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE