./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/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_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/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_353113b3-dd72-4072-8eda-dc91e27465c5/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 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --- 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 17:13:16,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:13:16,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:13:16,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:13:16,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:13:16,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:13:16,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:13:16,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:13:16,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:13:16,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:13:16,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:13:16,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:13:16,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:13:16,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:13:16,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:13:16,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:13:16,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:13:16,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:13:16,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:13:16,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:13:16,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:13:16,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:13:16,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:13:16,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:13:16,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:13:16,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:13:16,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:13:16,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:13:16,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:13:16,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:13:16,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:13:16,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:13:16,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:13:16,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:13:16,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:13:16,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:13:16,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:13:16,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:13:16,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:13:16,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:13:16,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:13:16,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:13:16,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:13:16,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:13:16,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:13:16,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:13:16,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:13:16,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:13:16,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:13:16,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:13:16,858 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:13:16,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:13:16,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:13:16,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:13:16,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:13:16,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:13:16,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:13:16,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:13:16,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:13:16,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:13:16,862 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:13:16,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:13:16,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:13:16,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:13:16,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:13:16,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:13:16,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:13:16,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:13:16,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:13:16,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:13:16,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:13:16,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:13:16,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:13:16,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:13:16,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:13:16,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:13:16,868 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:13:16,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:13:16,869 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_353113b3-dd72-4072-8eda-dc91e27465c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e [2022-11-25 17:13:17,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:13:17,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:13:17,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:13:17,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:13:17,289 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:13:17,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-11-25 17:13:20,666 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:13:20,936 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:13:20,937 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-11-25 17:13:20,942 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/data/f7fb4825b/f8fbf01a1ffb4485b2c174e73684a11c/FLAGbb05c5322 [2022-11-25 17:13:20,954 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/data/f7fb4825b/f8fbf01a1ffb4485b2c174e73684a11c [2022-11-25 17:13:20,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:13:20,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:13:20,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:13:20,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:13:20,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:13:20,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:13:20" (1/1) ... [2022-11-25 17:13:20,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7069e67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:20, skipping insertion in model container [2022-11-25 17:13:20,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:13:20" (1/1) ... [2022-11-25 17:13:20,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:13:20,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:13:21,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,157 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_353113b3-dd72-4072-8eda-dc91e27465c5/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-11-25 17:13:21,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:13:21,169 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:13:21,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:13:21,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:13:21,211 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_353113b3-dd72-4072-8eda-dc91e27465c5/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-11-25 17:13:21,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:13:21,234 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:13:21,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21 WrapperNode [2022-11-25 17:13:21,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:13:21,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:13:21,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:13:21,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:13:21,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,277 INFO L138 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 123 [2022-11-25 17:13:21,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:13:21,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:13:21,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:13:21,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:13:21,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:13:21,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:13:21,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:13:21,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:13:21,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (1/1) ... [2022-11-25 17:13:21,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:13:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:21,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:13:21,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:13:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:13:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:13:21,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:13:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:13:21,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:13:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:13:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:13:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:13:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:13:21,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:13:21,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:13:21,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:13:21,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:13:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:13:21,403 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 17:13:21,554 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:13:21,556 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:13:21,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:13:21,972 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:13:21,972 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:13:21,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:21 BoogieIcfgContainer [2022-11-25 17:13:21,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:13:21,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:13:21,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:13:21,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:13:21,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:13:20" (1/3) ... [2022-11-25 17:13:21,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1c6330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:13:21, skipping insertion in model container [2022-11-25 17:13:21,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:21" (2/3) ... [2022-11-25 17:13:21,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1c6330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:13:21, skipping insertion in model container [2022-11-25 17:13:21,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:21" (3/3) ... [2022-11-25 17:13:21,985 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-11-25 17:13:21,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:13:22,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:13:22,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:13:22,049 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:13:22,181 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 17:13:22,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 146 transitions, 308 flow [2022-11-25 17:13:22,372 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2022-11-25 17:13:22,379 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:13:22,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 144 events. 9/144 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-11-25 17:13:22,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 146 transitions, 308 flow [2022-11-25 17:13:22,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 125 transitions, 259 flow [2022-11-25 17:13:22,398 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:13:22,423 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 125 transitions, 259 flow [2022-11-25 17:13:22,428 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 125 transitions, 259 flow [2022-11-25 17:13:22,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 125 transitions, 259 flow [2022-11-25 17:13:22,493 INFO L130 PetriNetUnfolder]: 8/125 cut-off events. [2022-11-25 17:13:22,493 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:13:22,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 125 events. 8/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-11-25 17:13:22,497 INFO L119 LiptonReduction]: Number of co-enabled transitions 756 [2022-11-25 17:13:28,642 INFO L134 LiptonReduction]: Checked pairs total: 3570 [2022-11-25 17:13:28,642 INFO L136 LiptonReduction]: Total number of compositions: 131 [2022-11-25 17:13:28,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:13:28,670 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;@2e8ac778, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:13:28,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-25 17:13:28,674 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-11-25 17:13:28,674 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:13:28,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:28,675 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:13:28,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:28,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash 582516, now seen corresponding path program 1 times [2022-11-25 17:13:28,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:28,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917315618] [2022-11-25 17:13:28,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:28,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:28,982 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 17:13:28,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:28,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917315618] [2022-11-25 17:13:28,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917315618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:28,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:28,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:13:28,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869211576] [2022-11-25 17:13:28,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:29,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:13:29,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:29,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:13:29,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:13:29,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 277 [2022-11-25 17:13:29,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 17:13:29,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:29,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 277 [2022-11-25 17:13:29,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:29,343 INFO L130 PetriNetUnfolder]: 205/400 cut-off events. [2022-11-25 17:13:29,343 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-25 17:13:29,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 818 conditions, 400 events. 205/400 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1772 event pairs, 81 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 726. Up to 285 conditions per place. [2022-11-25 17:13:29,349 INFO L137 encePairwiseOnDemand]: 265/277 looper letters, 33 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2022-11-25 17:13:29,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 179 flow [2022-11-25 17:13:29,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:13:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:13:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2022-11-25 17:13:29,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48495788206979545 [2022-11-25 17:13:29,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2022-11-25 17:13:29,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2022-11-25 17:13:29,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:29,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2022-11-25 17:13:29,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 17:13:29,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 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 17:13:29,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 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 17:13:29,400 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 61 flow. Second operand 3 states and 403 transitions. [2022-11-25 17:13:29,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 179 flow [2022-11-25 17:13:29,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 171 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:13:29,409 INFO L231 Difference]: Finished difference. Result has 32 places, 31 transitions, 114 flow [2022-11-25 17:13:29,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=32, PETRI_TRANSITIONS=31} [2022-11-25 17:13:29,417 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2022-11-25 17:13:29,417 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 114 flow [2022-11-25 17:13:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 17:13:29,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:29,418 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:13:29,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:13:29,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash 582570, now seen corresponding path program 1 times [2022-11-25 17:13:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:29,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659848396] [2022-11-25 17:13:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:29,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:29,592 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 17:13:29,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:29,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659848396] [2022-11-25 17:13:29,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659848396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:29,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:29,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:13:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961105735] [2022-11-25 17:13:29,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:29,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:13:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:29,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:13:29,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:13:29,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 277 [2022-11-25 17:13:29,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:29,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:29,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 277 [2022-11-25 17:13:29,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:29,768 INFO L130 PetriNetUnfolder]: 222/437 cut-off events. [2022-11-25 17:13:29,768 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2022-11-25 17:13:29,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 437 events. 222/437 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1986 event pairs, 48 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 454. Up to 317 conditions per place. [2022-11-25 17:13:29,779 INFO L137 encePairwiseOnDemand]: 271/277 looper letters, 38 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2022-11-25 17:13:29,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 46 transitions, 253 flow [2022-11-25 17:13:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:13:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:13:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2022-11-25 17:13:29,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4729241877256318 [2022-11-25 17:13:29,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2022-11-25 17:13:29,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2022-11-25 17:13:29,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:29,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2022-11-25 17:13:29,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 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 17:13:29,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 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 17:13:29,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 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 17:13:29,799 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 114 flow. Second operand 3 states and 393 transitions. [2022-11-25 17:13:29,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 46 transitions, 253 flow [2022-11-25 17:13:29,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 46 transitions, 233 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:13:29,806 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 136 flow [2022-11-25 17:13:29,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2022-11-25 17:13:29,808 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-11-25 17:13:29,808 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 136 flow [2022-11-25 17:13:29,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:29,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:29,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:13:29,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:13:29,811 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:29,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 582517, now seen corresponding path program 1 times [2022-11-25 17:13:29,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:29,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248048526] [2022-11-25 17:13:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:29,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:29,984 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 17:13:29,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:29,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248048526] [2022-11-25 17:13:29,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248048526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:29,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:29,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:13:29,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133720436] [2022-11-25 17:13:29,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:29,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:13:29,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:29,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:13:29,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:13:30,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 277 [2022-11-25 17:13:30,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 17:13:30,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:30,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 277 [2022-11-25 17:13:30,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:30,135 INFO L130 PetriNetUnfolder]: 155/295 cut-off events. [2022-11-25 17:13:30,135 INFO L131 PetriNetUnfolder]: For 162/164 co-relation queries the response was YES. [2022-11-25 17:13:30,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 295 events. 155/295 cut-off events. For 162/164 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1206 event pairs, 67 based on Foata normal form. 24/285 useless extension candidates. Maximal degree in co-relation 681. Up to 173 conditions per place. [2022-11-25 17:13:30,138 INFO L137 encePairwiseOnDemand]: 269/277 looper letters, 34 selfloop transitions, 5 changer transitions 0/41 dead transitions. [2022-11-25 17:13:30,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 221 flow [2022-11-25 17:13:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:13:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:13:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2022-11-25 17:13:30,141 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47653429602888087 [2022-11-25 17:13:30,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2022-11-25 17:13:30,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2022-11-25 17:13:30,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:30,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2022-11-25 17:13:30,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:30,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 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 17:13:30,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 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 17:13:30,148 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 136 flow. Second operand 3 states and 396 transitions. [2022-11-25 17:13:30,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 221 flow [2022-11-25 17:13:30,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:13:30,151 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 119 flow [2022-11-25 17:13:30,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2022-11-25 17:13:30,152 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-11-25 17:13:30,153 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 119 flow [2022-11-25 17:13:30,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 17:13:30,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:30,154 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:13:30,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:13:30,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:30,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:30,155 INFO L85 PathProgramCache]: Analyzing trace with hash 178340725, now seen corresponding path program 1 times [2022-11-25 17:13:30,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:30,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784909260] [2022-11-25 17:13:30,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:30,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,346 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 17:13:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:30,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784909260] [2022-11-25 17:13:30,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784909260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:30,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:30,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:13:30,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420400607] [2022-11-25 17:13:30,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:30,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:13:30,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:13:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:13:30,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 277 [2022-11-25 17:13:30,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 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 17:13:30,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:30,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 277 [2022-11-25 17:13:30,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:30,562 INFO L130 PetriNetUnfolder]: 238/431 cut-off events. [2022-11-25 17:13:30,563 INFO L131 PetriNetUnfolder]: For 264/264 co-relation queries the response was YES. [2022-11-25 17:13:30,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 431 events. 238/431 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1742 event pairs, 48 based on Foata normal form. 8/439 useless extension candidates. Maximal degree in co-relation 1096. Up to 249 conditions per place. [2022-11-25 17:13:30,567 INFO L137 encePairwiseOnDemand]: 269/277 looper letters, 43 selfloop transitions, 8 changer transitions 0/52 dead transitions. [2022-11-25 17:13:30,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 52 transitions, 303 flow [2022-11-25 17:13:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:13:30,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:13:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2022-11-25 17:13:30,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.463898916967509 [2022-11-25 17:13:30,570 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2022-11-25 17:13:30,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2022-11-25 17:13:30,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:30,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2022-11-25 17:13:30,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 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 17:13:30,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 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 17:13:30,577 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 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 17:13:30,577 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 119 flow. Second operand 4 states and 514 transitions. [2022-11-25 17:13:30,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 52 transitions, 303 flow [2022-11-25 17:13:30,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 52 transitions, 285 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:13:30,581 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 155 flow [2022-11-25 17:13:30,582 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2022-11-25 17:13:30,583 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2022-11-25 17:13:30,583 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 155 flow [2022-11-25 17:13:30,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 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 17:13:30,584 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:30,584 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:30,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:13:30,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:30,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:30,585 INFO L85 PathProgramCache]: Analyzing trace with hash -412998220, now seen corresponding path program 1 times [2022-11-25 17:13:30,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:30,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345787608] [2022-11-25 17:13:30,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,712 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 17:13:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:30,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345787608] [2022-11-25 17:13:30,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345787608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:30,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:30,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:13:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123961731] [2022-11-25 17:13:30,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:30,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:30,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:30,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:30,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:30,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 277 [2022-11-25 17:13:30,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 155 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 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 17:13:30,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:30,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 277 [2022-11-25 17:13:30,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:30,881 INFO L130 PetriNetUnfolder]: 215/377 cut-off events. [2022-11-25 17:13:30,881 INFO L131 PetriNetUnfolder]: For 418/424 co-relation queries the response was YES. [2022-11-25 17:13:30,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 377 events. 215/377 cut-off events. For 418/424 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1383 event pairs, 62 based on Foata normal form. 14/389 useless extension candidates. Maximal degree in co-relation 1004. Up to 348 conditions per place. [2022-11-25 17:13:30,884 INFO L137 encePairwiseOnDemand]: 269/277 looper letters, 31 selfloop transitions, 10 changer transitions 0/44 dead transitions. [2022-11-25 17:13:30,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 285 flow [2022-11-25 17:13:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:13:30,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:13:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 633 transitions. [2022-11-25 17:13:30,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45703971119133574 [2022-11-25 17:13:30,888 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 633 transitions. [2022-11-25 17:13:30,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 633 transitions. [2022-11-25 17:13:30,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:30,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 633 transitions. [2022-11-25 17:13:30,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 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 17:13:30,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 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 17:13:30,896 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 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 17:13:30,896 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 155 flow. Second operand 5 states and 633 transitions. [2022-11-25 17:13:30,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 285 flow [2022-11-25 17:13:30,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:13:30,900 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 229 flow [2022-11-25 17:13:30,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2022-11-25 17:13:30,901 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2022-11-25 17:13:30,902 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 229 flow [2022-11-25 17:13:30,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 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 17:13:30,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:30,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:30,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:13:30,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:30,904 INFO L85 PathProgramCache]: Analyzing trace with hash -413010610, now seen corresponding path program 1 times [2022-11-25 17:13:30,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:30,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671023257] [2022-11-25 17:13:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:30,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:31,022 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 17:13:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:31,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671023257] [2022-11-25 17:13:31,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671023257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:31,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:31,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:13:31,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442566472] [2022-11-25 17:13:31,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:31,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:13:31,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:31,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:13:31,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:13:31,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 277 [2022-11-25 17:13:31,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 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 17:13:31,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:31,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 277 [2022-11-25 17:13:31,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:31,182 INFO L130 PetriNetUnfolder]: 200/368 cut-off events. [2022-11-25 17:13:31,182 INFO L131 PetriNetUnfolder]: For 723/728 co-relation queries the response was YES. [2022-11-25 17:13:31,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 368 events. 200/368 cut-off events. For 723/728 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1437 event pairs, 24 based on Foata normal form. 38/402 useless extension candidates. Maximal degree in co-relation 926. Up to 281 conditions per place. [2022-11-25 17:13:31,186 INFO L137 encePairwiseOnDemand]: 269/277 looper letters, 27 selfloop transitions, 10 changer transitions 6/46 dead transitions. [2022-11-25 17:13:31,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 324 flow [2022-11-25 17:13:31,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:13:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:13:31,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2022-11-25 17:13:31,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4648014440433213 [2022-11-25 17:13:31,189 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 515 transitions. [2022-11-25 17:13:31,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 515 transitions. [2022-11-25 17:13:31,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:31,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 515 transitions. [2022-11-25 17:13:31,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 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 17:13:31,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 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 17:13:31,195 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 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 17:13:31,195 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 229 flow. Second operand 4 states and 515 transitions. [2022-11-25 17:13:31,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 324 flow [2022-11-25 17:13:31,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 313 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:13:31,199 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 226 flow [2022-11-25 17:13:31,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2022-11-25 17:13:31,201 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2022-11-25 17:13:31,201 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 226 flow [2022-11-25 17:13:31,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 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 17:13:31,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:13:31,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:31,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:13:31,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 17:13:31,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:31,203 INFO L85 PathProgramCache]: Analyzing trace with hash 81573454, now seen corresponding path program 1 times [2022-11-25 17:13:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:31,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529127835] [2022-11-25 17:13:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:31,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:31,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:13:31,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:31,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529127835] [2022-11-25 17:13:31,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529127835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:31,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:31,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:13:31,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273291781] [2022-11-25 17:13:31,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:31,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:31,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:31,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:31,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 277 [2022-11-25 17:13:31,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 17:13:31,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:13:31,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 277 [2022-11-25 17:13:31,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:13:31,420 INFO L130 PetriNetUnfolder]: 60/139 cut-off events. [2022-11-25 17:13:31,421 INFO L131 PetriNetUnfolder]: For 597/600 co-relation queries the response was YES. [2022-11-25 17:13:31,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 139 events. 60/139 cut-off events. For 597/600 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 501 event pairs, 4 based on Foata normal form. 38/174 useless extension candidates. Maximal degree in co-relation 343. Up to 80 conditions per place. [2022-11-25 17:13:31,422 INFO L137 encePairwiseOnDemand]: 270/277 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-11-25 17:13:31,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 255 flow [2022-11-25 17:13:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:13:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:13:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 625 transitions. [2022-11-25 17:13:31,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45126353790613716 [2022-11-25 17:13:31,425 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 625 transitions. [2022-11-25 17:13:31,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 625 transitions. [2022-11-25 17:13:31,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:13:31,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 625 transitions. [2022-11-25 17:13:31,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 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 17:13:31,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 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 17:13:31,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 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 17:13:31,432 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 226 flow. Second operand 5 states and 625 transitions. [2022-11-25 17:13:31,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 255 flow [2022-11-25 17:13:31,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 211 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-11-25 17:13:31,435 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-11-25 17:13:31,435 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-11-25 17:13:31,436 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2022-11-25 17:13:31,436 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2022-11-25 17:13:31,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 17:13:31,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-25 17:13:31,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-25 17:13:31,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-25 17:13:31,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-25 17:13:31,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-25 17:13:31,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-25 17:13:31,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-25 17:13:31,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-25 17:13:31,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2022-11-25 17:13:31,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-25 17:13:31,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-25 17:13:31,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-25 17:13:31,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-25 17:13:31,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-25 17:13:31,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-25 17:13:31,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-25 17:13:31,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-25 17:13:31,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-25 17:13:31,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:13:31,446 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:31,453 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:13:31,454 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:13:31,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:13:31 BasicIcfg [2022-11-25 17:13:31,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:13:31,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:13:31,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:13:31,460 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:13:31,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:21" (3/4) ... [2022-11-25 17:13:31,464 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:13:31,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 17:13:31,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 17:13:31,477 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-25 17:13:31,477 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 17:13:31,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:13:31,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:13:31,523 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:13:31,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:13:31,524 INFO L158 Benchmark]: Toolchain (without parser) took 10566.39ms. Allocated memory was 125.8MB in the beginning and 195.0MB in the end (delta: 69.2MB). Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2022-11-25 17:13:31,525 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:13:31,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.13ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 83.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:13:31,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.94ms. Allocated memory is still 125.8MB. Free memory was 83.6MB in the beginning and 81.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:13:31,526 INFO L158 Benchmark]: Boogie Preprocessor took 26.11ms. Allocated memory is still 125.8MB. Free memory was 81.8MB in the beginning and 80.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:13:31,526 INFO L158 Benchmark]: RCFGBuilder took 670.56ms. Allocated memory is still 125.8MB. Free memory was 80.3MB in the beginning and 59.0MB in the end (delta: 21.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 17:13:31,527 INFO L158 Benchmark]: TraceAbstraction took 9480.61ms. Allocated memory was 125.8MB in the beginning and 195.0MB in the end (delta: 69.2MB). Free memory was 58.4MB in the beginning and 99.0MB in the end (delta: -40.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-25 17:13:31,527 INFO L158 Benchmark]: Witness Printer took 64.63ms. Allocated memory is still 195.0MB. Free memory was 99.0MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:13:31,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.13ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 83.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.94ms. Allocated memory is still 125.8MB. Free memory was 83.6MB in the beginning and 81.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.11ms. Allocated memory is still 125.8MB. Free memory was 81.8MB in the beginning and 80.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 670.56ms. Allocated memory is still 125.8MB. Free memory was 80.3MB in the beginning and 59.0MB in the end (delta: 21.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9480.61ms. Allocated memory was 125.8MB in the beginning and 195.0MB in the end (delta: 69.2MB). Free memory was 58.4MB in the beginning and 99.0MB in the end (delta: -40.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Witness Printer took 64.63ms. Allocated memory is still 195.0MB. Free memory was 99.0MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 124 PlacesBefore, 32 PlacesAfterwards, 125 TransitionsBefore, 26 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 8 FixpointIterations, 79 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 4 ConcurrentYvCompositions, 7 ChoiceCompositions, 131 TotalNumberOfCompositions, 3570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1559, independent: 1347, independent conditional: 0, independent unconditional: 1347, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 559, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 559, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 332, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1559, independent: 833, independent conditional: 0, independent unconditional: 833, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 559, unknown conditional: 0, unknown unconditional: 559] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: 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, 167 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 145 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 16 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=5, InterpolantAutomatonStates: 27, 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, 0.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 17:13:31,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353113b3-dd72-4072-8eda-dc91e27465c5/bin/uautomizer-ZsLfNo2U6R/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