./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d --- 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-4e7fbc6 [2022-11-23 14:34:21,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:34:21,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:34:21,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:34:21,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:34:21,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:34:21,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:34:21,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:34:21,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:34:21,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:34:21,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:34:21,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:34:21,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:34:21,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:34:21,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:34:21,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:34:21,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:34:21,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:34:21,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:34:21,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:34:21,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:34:21,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:34:21,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:34:21,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:34:21,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:34:21,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:34:21,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:34:21,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:34:21,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:34:21,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:34:21,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:34:21,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:34:21,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:34:21,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:34:21,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:34:21,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:34:21,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:34:21,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:34:21,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:34:21,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:34:21,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:34:21,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:34:21,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:34:21,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:34:21,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:34:21,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:34:21,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:34:21,722 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:34:21,722 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:34:21,723 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:34:21,723 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:34:21,723 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:34:21,725 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:34:21,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:34:21,726 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:34:21,726 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:34:21,726 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:34:21,727 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:34:21,727 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:34:21,727 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:34:21,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:34:21,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:34:21,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:34:21,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:34:21,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:34:21,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:34:21,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:34:21,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:34:21,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:34:21,732 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:34:21,732 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:34:21,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:34:21,733 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:34:21,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:34:21,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:34:21,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:34:21,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:34:21,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:34:21,736 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:34:21,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:34:21,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:34:21,736 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:34:21,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:34:21,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:34:21,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:34:21,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d [2022-11-23 14:34:22,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:34:22,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:34:22,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:34:22,111 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:34:22,111 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:34:22,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/safe001_tso.i [2022-11-23 14:34:25,829 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:34:26,147 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:34:26,147 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/sv-benchmarks/c/pthread-wmm/safe001_tso.i [2022-11-23 14:34:26,165 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/data/15b1f0bb8/1ded7e2d621544b5875fed6f4155715f/FLAG0a7c73fad [2022-11-23 14:34:26,203 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/data/15b1f0bb8/1ded7e2d621544b5875fed6f4155715f [2022-11-23 14:34:26,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:34:26,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:34:26,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:34:26,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:34:26,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:34:26,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:26,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760e4a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26, skipping insertion in model container [2022-11-23 14:34:26,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:26,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:34:26,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:34:26,519 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_4878b063-e499-437e-a85b-f538b629edd5/sv-benchmarks/c/pthread-wmm/safe001_tso.i[945,958] [2022-11-23 14:34:26,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:34:26,835 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:34:26,857 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_4878b063-e499-437e-a85b-f538b629edd5/sv-benchmarks/c/pthread-wmm/safe001_tso.i[945,958] [2022-11-23 14:34:26,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:34:26,959 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:34:26,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26 WrapperNode [2022-11-23 14:34:26,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:34:26,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:34:26,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:34:26,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:34:26,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,061 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-23 14:34:27,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:34:27,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:34:27,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:34:27,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:34:27,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:34:27,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:34:27,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:34:27,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:34:27,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2022-11-23 14:34:27,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:34:27,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:34:27,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:34:27,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:34:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:34:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 14:34:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:34:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:34:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:34:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 14:34:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 14:34:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 14:34:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 14:34:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 14:34:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 14:34:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:34:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 14:34:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:34:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:34:27,265 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:34:27,488 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:34:27,491 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:34:27,806 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:34:27,839 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:34:27,839 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:34:27,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:27 BoogieIcfgContainer [2022-11-23 14:34:27,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:34:27,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:34:27,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:34:27,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:34:27,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:26" (1/3) ... [2022-11-23 14:34:27,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199ae72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:27, skipping insertion in model container [2022-11-23 14:34:27,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (2/3) ... [2022-11-23 14:34:27,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199ae72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:27, skipping insertion in model container [2022-11-23 14:34:27,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:27" (3/3) ... [2022-11-23 14:34:27,855 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2022-11-23 14:34:27,866 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:34:27,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:34:27,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 14:34:27,881 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:34:27,954 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:34:27,998 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:34:28,016 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 96 transitions, 207 flow [2022-11-23 14:34:28,020 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 96 transitions, 207 flow [2022-11-23 14:34:28,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2022-11-23 14:34:28,091 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-11-23 14:34:28,092 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:34:28,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-11-23 14:34:28,105 INFO L119 LiptonReduction]: Number of co-enabled transitions 2208 [2022-11-23 14:34:32,103 INFO L134 LiptonReduction]: Checked pairs total: 5698 [2022-11-23 14:34:32,104 INFO L136 LiptonReduction]: Total number of compositions: 80 [2022-11-23 14:34:32,116 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 26 transitions, 67 flow [2022-11-23 14:34:32,239 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 731 states, 705 states have (on average 3.201418439716312) internal successors, (2257), 730 states have internal predecessors, (2257), 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) [2022-11-23 14:34:32,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:34:32,291 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=FINITE_AUTOMATA, 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;@2eecbdeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:34:32,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 14:34:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 731 states, 705 states have (on average 3.201418439716312) internal successors, (2257), 730 states have internal predecessors, (2257), 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) [2022-11-23 14:34:32,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:34:32,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:32,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:34:32,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:34:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash 10755594, now seen corresponding path program 1 times [2022-11-23 14:34:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:32,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227058707] [2022-11-23 14:34:32,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:32,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227058707] [2022-11-23 14:34:32,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227058707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:32,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:32,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:34:32,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732252992] [2022-11-23 14:34:32,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:32,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:34:32,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:32,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:34:32,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:34:32,840 INFO L87 Difference]: Start difference. First operand has 731 states, 705 states have (on average 3.201418439716312) internal successors, (2257), 730 states have internal predecessors, (2257), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:34:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:33,017 INFO L93 Difference]: Finished difference Result 401 states and 1075 transitions. [2022-11-23 14:34:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:34:33,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-23 14:34:33,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:33,053 INFO L225 Difference]: With dead ends: 401 [2022-11-23 14:34:33,054 INFO L226 Difference]: Without dead ends: 401 [2022-11-23 14:34:33,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:34:33,061 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:33,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:34:33,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-23 14:34:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2022-11-23 14:34:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 383 states have (on average 2.8067885117493474) internal successors, (1075), 400 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:34:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1075 transitions. [2022-11-23 14:34:33,207 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1075 transitions. Word has length 4 [2022-11-23 14:34:33,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:33,208 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 1075 transitions. [2022-11-23 14:34:33,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:34:33,209 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1075 transitions. [2022-11-23 14:34:33,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:34:33,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:33,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:33,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:34:33,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:34:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:33,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1572008049, now seen corresponding path program 1 times [2022-11-23 14:34:33,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:33,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281620775] [2022-11-23 14:34:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:33,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:33,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:33,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281620775] [2022-11-23 14:34:33,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281620775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:33,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:33,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:34:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105786428] [2022-11-23 14:34:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:33,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:33,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:33,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:33,349 INFO L87 Difference]: Start difference. First operand 401 states and 1075 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-23 14:34:33,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:33,444 INFO L93 Difference]: Finished difference Result 307 states and 836 transitions. [2022-11-23 14:34:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:34:33,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-23 14:34:33,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:33,449 INFO L225 Difference]: With dead ends: 307 [2022-11-23 14:34:33,450 INFO L226 Difference]: Without dead ends: 307 [2022-11-23 14:34:33,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:33,452 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:33,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:34:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-11-23 14:34:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2022-11-23 14:34:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 301 states have (on average 2.777408637873754) internal successors, (836), 306 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:34:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 836 transitions. [2022-11-23 14:34:33,473 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 836 transitions. Word has length 9 [2022-11-23 14:34:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:33,474 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 836 transitions. [2022-11-23 14:34:33,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-23 14:34:33,474 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 836 transitions. [2022-11-23 14:34:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:34:33,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:33,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:33,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:34:33,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:34:33,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1487607845, now seen corresponding path program 1 times [2022-11-23 14:34:33,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:33,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010568832] [2022-11-23 14:34:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:33,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:33,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:33,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010568832] [2022-11-23 14:34:33,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010568832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:33,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:33,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:34:33,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283953418] [2022-11-23 14:34:33,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:33,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:33,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:33,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:33,608 INFO L87 Difference]: Start difference. First operand 307 states and 836 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-23 14:34:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:33,711 INFO L93 Difference]: Finished difference Result 240 states and 660 transitions. [2022-11-23 14:34:33,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:34:33,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-11-23 14:34:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:33,714 INFO L225 Difference]: With dead ends: 240 [2022-11-23 14:34:33,715 INFO L226 Difference]: Without dead ends: 240 [2022-11-23 14:34:33,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:33,717 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:33,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 9 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:34:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-23 14:34:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2022-11-23 14:34:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 237 states have (on average 2.7848101265822787) internal successors, (660), 239 states have internal predecessors, (660), 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) [2022-11-23 14:34:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 660 transitions. [2022-11-23 14:34:33,731 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 660 transitions. Word has length 10 [2022-11-23 14:34:33,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:33,731 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 660 transitions. [2022-11-23 14:34:33,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-23 14:34:33,732 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 660 transitions. [2022-11-23 14:34:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 14:34:33,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:33,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:34:33,736 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:34:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash 491395149, now seen corresponding path program 1 times [2022-11-23 14:34:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:33,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242258904] [2022-11-23 14:34:33,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:33,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:33,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:33,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242258904] [2022-11-23 14:34:33,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242258904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:33,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:33,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:34:33,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741177521] [2022-11-23 14:34:33,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:33,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:34:33,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:33,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:34:33,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:34:33,863 INFO L87 Difference]: Start difference. First operand 240 states and 660 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-23 14:34:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:33,948 INFO L93 Difference]: Finished difference Result 231 states and 645 transitions. [2022-11-23 14:34:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:34:33,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 15 [2022-11-23 14:34:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:33,950 INFO L225 Difference]: With dead ends: 231 [2022-11-23 14:34:33,950 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:34:33,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:34:33,952 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 41 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:33,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 9 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:34:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:34:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:34:33,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 14:34:33,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:34:33,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-11-23 14:34:33,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:33,955 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:34:33,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-23 14:34:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:34:33,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:34:33,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-23 14:34:33,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-23 14:34:33,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-23 14:34:33,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-23 14:34:33,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-23 14:34:33,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-23 14:34:33,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-23 14:34:33,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-23 14:34:33,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-23 14:34:33,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-23 14:34:33,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-23 14:34:33,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-23 14:34:33,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-23 14:34:33,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-23 14:34:33,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-23 14:34:33,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:34:33,969 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 14:34:33,975 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:34:33,976 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:34:33,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:34:33 BasicIcfg [2022-11-23 14:34:33,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:34:33,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:34:33,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:34:33,981 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:34:33,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:27" (3/4) ... [2022-11-23 14:34:33,986 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:34:33,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 14:34:33,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 14:34:33,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 14:34:34,003 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-23 14:34:34,004 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 14:34:34,004 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 14:34:34,004 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:34:34,076 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:34:34,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:34:34,077 INFO L158 Benchmark]: Toolchain (without parser) took 7864.82ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 80.1MB in the beginning and 76.1MB in the end (delta: 4.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,077 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:34:34,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 746.45ms. Allocated memory is still 123.7MB. Free memory was 79.8MB in the beginning and 59.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.84ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 59.8MB in the beginning and 120.3MB in the end (delta: -60.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,079 INFO L158 Benchmark]: Boogie Preprocessor took 74.71ms. Allocated memory is still 151.0MB. Free memory was 120.3MB in the beginning and 122.1MB in the end (delta: -1.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,079 INFO L158 Benchmark]: RCFGBuilder took 704.56ms. Allocated memory is still 151.0MB. Free memory was 122.1MB in the beginning and 107.2MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,080 INFO L158 Benchmark]: TraceAbstraction took 6133.95ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 106.3MB in the beginning and 78.2MB in the end (delta: 28.1MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,080 INFO L158 Benchmark]: Witness Printer took 95.92ms. Allocated memory is still 182.5MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:34:34,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 746.45ms. Allocated memory is still 123.7MB. Free memory was 79.8MB in the beginning and 59.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.84ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 59.8MB in the beginning and 120.3MB in the end (delta: -60.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.71ms. Allocated memory is still 151.0MB. Free memory was 120.3MB in the beginning and 122.1MB in the end (delta: -1.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * RCFGBuilder took 704.56ms. Allocated memory is still 151.0MB. Free memory was 122.1MB in the beginning and 107.2MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6133.95ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 106.3MB in the beginning and 78.2MB in the end (delta: 28.1MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 95.92ms. Allocated memory is still 182.5MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 104 PlacesBefore, 36 PlacesAfterwards, 96 TransitionsBefore, 26 TransitionsAfterwards, 2208 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 5698 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2594, independent: 2421, independent conditional: 0, independent unconditional: 2421, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1501, independent: 1458, independent conditional: 0, independent unconditional: 1458, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1501, independent: 1427, independent conditional: 0, independent unconditional: 1427, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 288, independent: 116, independent conditional: 0, independent unconditional: 116, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2594, independent: 963, independent conditional: 0, independent unconditional: 963, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 1501, unknown conditional: 0, unknown unconditional: 1501] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: 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 7 procedures, 125 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 15 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 14:34:34,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4878b063-e499-437e-a85b-f538b629edd5/bin/utaipan-Q6hlc19bkW/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