./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --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_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- 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 [2022-11-26 00:22:46,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:22:46,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:22:46,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:22:46,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:22:46,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:22:46,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:22:46,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:22:46,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:22:46,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:22:46,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:22:46,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:22:46,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:22:46,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:22:46,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:22:46,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:22:46,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:22:46,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:22:46,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:22:46,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:22:46,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:22:46,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:22:46,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:22:46,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:22:46,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:22:46,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:22:46,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:22:46,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:22:46,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:22:46,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:22:46,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:22:46,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:22:46,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:22:46,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:22:46,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:22:46,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:22:46,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:22:46,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:22:46,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:22:46,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:22:46,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:22:46,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:22:46,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:22:46,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:22:46,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:22:46,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:22:46,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:22:46,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:22:46,255 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:22:46,255 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:22:46,255 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:22:46,255 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:22:46,256 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:22:46,256 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:22:46,257 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:22:46,257 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:22:46,257 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:22:46,257 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:22:46,257 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:22:46,258 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:22:46,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:22:46,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:22:46,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:22:46,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:22:46,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:22:46,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:22:46,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:22:46,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:22:46,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:22:46,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:22:46,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:22:46,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:22:46,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:22:46,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:22:46,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:22:46,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:22:46,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:22:46,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:22:46,262 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:22:46,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:22:46,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:22:46,262 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:22:46,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:22:46,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:22:46,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:22:46,263 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_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-11-26 00:22:46,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:22:46,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:22:46,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:22:46,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:22:46,594 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:22:46,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-26 00:22:49,602 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:22:49,896 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:22:49,897 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-26 00:22:49,914 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/data/456085a84/a002f0b6e27b47829ea1c857fd0f2d69/FLAGe563e2cba [2022-11-26 00:22:49,929 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/data/456085a84/a002f0b6e27b47829ea1c857fd0f2d69 [2022-11-26 00:22:49,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:22:49,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:22:49,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:22:49,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:22:49,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:22:49,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:22:49" (1/1) ... [2022-11-26 00:22:49,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a8a275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:49, skipping insertion in model container [2022-11-26 00:22:49,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:22:49" (1/1) ... [2022-11-26 00:22:49,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:22:50,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:22:50,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:22:50,536 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:22:50,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:22:50,645 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:22:50,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50 WrapperNode [2022-11-26 00:22:50,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:22:50,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:22:50,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:22:50,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:22:50,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,718 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-11-26 00:22:50,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:22:50,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:22:50,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:22:50,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:22:50,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,759 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:22:50,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:22:50,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:22:50,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:22:50,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (1/1) ... [2022-11-26 00:22:50,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:22:50,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:22:50,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:22:50,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:22:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:22:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:22:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:22:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:22:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:22:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:22:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:22:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:22:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:22:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:22:50,880 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:22:51,010 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:22:51,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:22:51,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:22:51,313 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:22:51,314 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:22:51,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:22:51 BoogieIcfgContainer [2022-11-26 00:22:51,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:22:51,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:22:51,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:22:51,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:22:51,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:22:49" (1/3) ... [2022-11-26 00:22:51,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42de95bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:22:51, skipping insertion in model container [2022-11-26 00:22:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:22:50" (2/3) ... [2022-11-26 00:22:51,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42de95bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:22:51, skipping insertion in model container [2022-11-26 00:22:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:22:51" (3/3) ... [2022-11-26 00:22:51,325 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-11-26 00:22:51,334 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:22:51,346 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:22:51,346 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-26 00:22:51,346 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:22:51,405 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:22:51,443 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:22:51,459 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 94 transitions, 193 flow [2022-11-26 00:22:51,462 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 94 transitions, 193 flow [2022-11-26 00:22:51,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 94 transitions, 193 flow [2022-11-26 00:22:51,517 INFO L130 PetriNetUnfolder]: 4/93 cut-off events. [2022-11-26 00:22:51,517 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:22:51,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 4/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-26 00:22:51,524 INFO L119 LiptonReduction]: Number of co-enabled transitions 1360 [2022-11-26 00:22:55,089 INFO L134 LiptonReduction]: Checked pairs total: 1922 [2022-11-26 00:22:55,090 INFO L136 LiptonReduction]: Total number of compositions: 108 [2022-11-26 00:22:55,100 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions, 47 flow [2022-11-26 00:22:55,122 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 64 states, 46 states have (on average 2.347826086956522) internal successors, (108), 63 states have internal predecessors, (108), 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) [2022-11-26 00:22:55,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:22:55,158 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;@7693d633, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:22:55,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-26 00:22:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 46 states have (on average 2.347826086956522) internal successors, (108), 63 states have internal predecessors, (108), 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) [2022-11-26 00:22:55,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:22:55,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:55,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:22:55,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:55,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash 11776, now seen corresponding path program 1 times [2022-11-26 00:22:55,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:55,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382364120] [2022-11-26 00:22:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:55,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:55,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:55,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382364120] [2022-11-26 00:22:55,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382364120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:55,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:55,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:22:55,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578236650] [2022-11-26 00:22:55,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:55,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:22:55,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:55,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:22:55,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:22:55,502 INFO L87 Difference]: Start difference. First operand has 64 states, 46 states have (on average 2.347826086956522) internal successors, (108), 63 states have internal predecessors, (108), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:22:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:55,576 INFO L93 Difference]: Finished difference Result 50 states and 82 transitions. [2022-11-26 00:22:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:22:55,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-26 00:22:55,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:55,587 INFO L225 Difference]: With dead ends: 50 [2022-11-26 00:22:55,587 INFO L226 Difference]: Without dead ends: 45 [2022-11-26 00:22:55,588 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 [2022-11-26 00:22:55,593 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:55,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-26 00:22:55,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-26 00:22:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 2.0) internal successors, (72), 44 states have internal predecessors, (72), 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) [2022-11-26 00:22:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 72 transitions. [2022-11-26 00:22:55,643 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 72 transitions. Word has length 2 [2022-11-26 00:22:55,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:55,643 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 72 transitions. [2022-11-26 00:22:55,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:22:55,644 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2022-11-26 00:22:55,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:22:55,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:55,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:22:55,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:22:55,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:55,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:55,648 INFO L85 PathProgramCache]: Analyzing trace with hash 366416, now seen corresponding path program 1 times [2022-11-26 00:22:55,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:55,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543902215] [2022-11-26 00:22:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:55,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:55,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:55,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543902215] [2022-11-26 00:22:55,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543902215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:55,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:55,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:22:55,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570313081] [2022-11-26 00:22:55,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:55,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:22:55,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:55,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:22:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:22:55,745 INFO L87 Difference]: Start difference. First operand 45 states and 72 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-26 00:22:55,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:55,785 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2022-11-26 00:22:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:22:55,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-26 00:22:55,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:55,788 INFO L225 Difference]: With dead ends: 44 [2022-11-26 00:22:55,788 INFO L226 Difference]: Without dead ends: 44 [2022-11-26 00:22:55,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:22:55,791 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:55,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-26 00:22:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-26 00:22:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.9722222222222223) internal successors, (71), 43 states have internal predecessors, (71), 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) [2022-11-26 00:22:55,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-11-26 00:22:55,808 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 3 [2022-11-26 00:22:55,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:55,809 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-11-26 00:22:55,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-26 00:22:55,809 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-11-26 00:22:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:22:55,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:55,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:22:55,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:22:55,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:55,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:55,811 INFO L85 PathProgramCache]: Analyzing trace with hash 352173922, now seen corresponding path program 1 times [2022-11-26 00:22:55,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:55,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371230481] [2022-11-26 00:22:55,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:55,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:55,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:55,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371230481] [2022-11-26 00:22:55,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371230481] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:22:55,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872748117] [2022-11-26 00:22:55,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:55,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:22:55,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:22:55,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:22:55,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:22:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:56,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:22:56,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:56,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:22:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:56,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872748117] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:22:56,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1266258973] [2022-11-26 00:22:56,134 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-26 00:22:56,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:22:56,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 00:22:56,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503589891] [2022-11-26 00:22:56,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:22:56,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:22:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:22:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:22:56,153 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2022-11-26 00:22:56,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:56,197 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-11-26 00:22:56,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:22:56,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 5 [2022-11-26 00:22:56,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:56,199 INFO L225 Difference]: With dead ends: 47 [2022-11-26 00:22:56,199 INFO L226 Difference]: Without dead ends: 47 [2022-11-26 00:22:56,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:22:56,200 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:56,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-26 00:22:56,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-26 00:22:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.8974358974358974) internal successors, (74), 46 states have internal predecessors, (74), 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) [2022-11-26 00:22:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. [2022-11-26 00:22:56,206 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 74 transitions. Word has length 5 [2022-11-26 00:22:56,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:56,206 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 74 transitions. [2022-11-26 00:22:56,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2022-11-26 00:22:56,207 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2022-11-26 00:22:56,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:22:56,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:56,208 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-26 00:22:56,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:56,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-26 00:22:56,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:56,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1128251886, now seen corresponding path program 2 times [2022-11-26 00:22:56,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:56,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790728649] [2022-11-26 00:22:56,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:56,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:56,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:56,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790728649] [2022-11-26 00:22:56,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790728649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:22:56,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764188197] [2022-11-26 00:22:56,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:22:56,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:22:56,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:22:56,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:22:56,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:22:56,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:22:56,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:56,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:22:56,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:56,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-26 00:22:56,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:56,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-26 00:22:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-26 00:22:56,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:56,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764188197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:56,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:22:56,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-11-26 00:22:56,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246447715] [2022-11-26 00:22:56,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:56,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:22:56,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:56,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:22:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:22:56,802 INFO L87 Difference]: Start difference. First operand 47 states and 74 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-26 00:22:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:56,862 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2022-11-26 00:22:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:22:56,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 8 [2022-11-26 00:22:56,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:56,866 INFO L225 Difference]: With dead ends: 34 [2022-11-26 00:22:56,866 INFO L226 Difference]: Without dead ends: 34 [2022-11-26 00:22:56,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:22:56,871 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:56,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-26 00:22:56,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-26 00:22:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.6) internal successors, (48), 33 states have internal predecessors, (48), 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) [2022-11-26 00:22:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2022-11-26 00:22:56,883 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 8 [2022-11-26 00:22:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:56,883 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2022-11-26 00:22:56,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-26 00:22:56,884 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2022-11-26 00:22:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:22:56,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:56,886 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-26 00:22:56,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:57,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:22:57,092 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:57,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:57,093 INFO L85 PathProgramCache]: Analyzing trace with hash -616069680, now seen corresponding path program 1 times [2022-11-26 00:22:57,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:57,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818704708] [2022-11-26 00:22:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:57,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:57,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818704708] [2022-11-26 00:22:57,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818704708] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:22:57,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063574282] [2022-11-26 00:22:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:57,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:22:57,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:22:57,270 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:22:57,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:22:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:57,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:22:57,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:57,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:22:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:57,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063574282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:22:57,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1140628583] [2022-11-26 00:22:57,441 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-26 00:22:57,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:22:57,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-26 00:22:57,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273481558] [2022-11-26 00:22:57,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:22:57,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:22:57,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:22:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:22:57,448 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-11-26 00:22:57,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:57,508 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2022-11-26 00:22:57,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:22:57,508 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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 [2022-11-26 00:22:57,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:57,509 INFO L225 Difference]: With dead ends: 40 [2022-11-26 00:22:57,509 INFO L226 Difference]: Without dead ends: 40 [2022-11-26 00:22:57,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:22:57,510 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:57,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-26 00:22:57,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-26 00:22:57,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.5) internal successors, (54), 39 states have internal predecessors, (54), 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) [2022-11-26 00:22:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2022-11-26 00:22:57,516 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 9 [2022-11-26 00:22:57,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:57,516 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2022-11-26 00:22:57,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-11-26 00:22:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2022-11-26 00:22:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:22:57,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:57,517 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1] [2022-11-26 00:22:57,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:57,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:22:57,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:57,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:57,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2077374512, now seen corresponding path program 2 times [2022-11-26 00:22:57,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:57,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400557650] [2022-11-26 00:22:57,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:57,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 00:22:58,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:58,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400557650] [2022-11-26 00:22:58,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400557650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:58,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:58,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:22:58,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140865662] [2022-11-26 00:22:58,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:58,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:22:58,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:58,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:22:58,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:22:58,020 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-26 00:22:58,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:58,076 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-11-26 00:22:58,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:22:58,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 [2022-11-26 00:22:58,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:58,077 INFO L225 Difference]: With dead ends: 37 [2022-11-26 00:22:58,077 INFO L226 Difference]: Without dead ends: 37 [2022-11-26 00:22:58,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:22:58,078 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:58,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-26 00:22:58,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-26 00:22:58,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 36 states have internal predecessors, (48), 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) [2022-11-26 00:22:58,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-11-26 00:22:58,082 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 15 [2022-11-26 00:22:58,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:58,082 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-11-26 00:22:58,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-26 00:22:58,083 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-11-26 00:22:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:22:58,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:58,083 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:58,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:22:58,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:58,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash 801109195, now seen corresponding path program 1 times [2022-11-26 00:22:58,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:58,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107903662] [2022-11-26 00:22:58,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:58,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 00:22:58,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:58,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107903662] [2022-11-26 00:22:58,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107903662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:58,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:58,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:22:58,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544662952] [2022-11-26 00:22:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:58,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:22:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:22:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:22:58,415 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-11-26 00:22:58,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:58,470 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2022-11-26 00:22:58,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:22:58,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 17 [2022-11-26 00:22:58,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:58,471 INFO L225 Difference]: With dead ends: 35 [2022-11-26 00:22:58,471 INFO L226 Difference]: Without dead ends: 35 [2022-11-26 00:22:58,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:22:58,472 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:58,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:58,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-26 00:22:58,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-26 00:22:58,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.40625) internal successors, (45), 34 states have internal predecessors, (45), 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) [2022-11-26 00:22:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-11-26 00:22:58,475 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 17 [2022-11-26 00:22:58,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:58,475 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-11-26 00:22:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-11-26 00:22:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-11-26 00:22:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:22:58,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:58,476 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:22:58,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash 802868120, now seen corresponding path program 1 times [2022-11-26 00:22:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:58,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133457118] [2022-11-26 00:22:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 00:22:58,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:58,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133457118] [2022-11-26 00:22:58,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133457118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:58,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:58,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:22:58,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424596685] [2022-11-26 00:22:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:22:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:58,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:22:58,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:22:58,876 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-26 00:22:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:58,976 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2022-11-26 00:22:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:22:58,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 17 [2022-11-26 00:22:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:58,977 INFO L225 Difference]: With dead ends: 33 [2022-11-26 00:22:58,977 INFO L226 Difference]: Without dead ends: 33 [2022-11-26 00:22:58,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:22:58,978 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:58,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:22:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-26 00:22:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-26 00:22:58,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 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) [2022-11-26 00:22:58,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-11-26 00:22:58,982 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 17 [2022-11-26 00:22:58,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:58,982 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-11-26 00:22:58,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-26 00:22:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-11-26 00:22:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:22:58,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:58,983 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:58,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:22:58,984 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:58,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash -935418313, now seen corresponding path program 1 times [2022-11-26 00:22:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:58,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129015563] [2022-11-26 00:22:58,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 00:22:59,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:59,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129015563] [2022-11-26 00:22:59,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129015563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:59,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:59,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:22:59,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227766455] [2022-11-26 00:22:59,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:59,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:22:59,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:59,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:22:59,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:22:59,357 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2022-11-26 00:22:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:59,450 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-11-26 00:22:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:22:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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 18 [2022-11-26 00:22:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:59,451 INFO L225 Difference]: With dead ends: 31 [2022-11-26 00:22:59,451 INFO L226 Difference]: Without dead ends: 25 [2022-11-26 00:22:59,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:22:59,452 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:59,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-26 00:22:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-26 00:22:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-11-26 00:22:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-11-26 00:22:59,455 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 18 [2022-11-26 00:22:59,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:59,456 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-26 00:22:59,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2022-11-26 00:22:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-26 00:22:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:22:59,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:59,457 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:59,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:22:59,457 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-26 00:22:59,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash -933857430, now seen corresponding path program 1 times [2022-11-26 00:22:59,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:22:59,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056343032] [2022-11-26 00:22:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:22:59,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:22:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 00:22:59,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:22:59,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056343032] [2022-11-26 00:22:59,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056343032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:59,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:59,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:22:59,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563791424] [2022-11-26 00:22:59,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:59,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:22:59,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:22:59,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:22:59,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:22:59,860 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2022-11-26 00:22:59,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:59,936 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-11-26 00:22:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:22:59,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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 18 [2022-11-26 00:22:59,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:59,937 INFO L225 Difference]: With dead ends: 23 [2022-11-26 00:22:59,937 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:22:59,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:22:59,938 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:59,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:22:59,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:22:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:22:59,940 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) [2022-11-26 00:22:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:22:59,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-26 00:22:59,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:59,941 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:22:59,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2022-11-26 00:22:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:22:59,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:22:59,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-11-26 00:22:59,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-26 00:22:59,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-26 00:22:59,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-26 00:22:59,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-11-26 00:22:59,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-26 00:22:59,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-26 00:22:59,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-26 00:22:59,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-26 00:22:59,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-26 00:22:59,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-26 00:22:59,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-26 00:22:59,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-26 00:22:59,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:22:59,952 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:59,957 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:22:59,957 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:22:59,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:22:59 BasicIcfg [2022-11-26 00:22:59,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:22:59,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:22:59,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:22:59,962 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:22:59,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:22:51" (3/4) ... [2022-11-26 00:22:59,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:22:59,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-26 00:22:59,976 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-26 00:22:59,977 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:22:59,977 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:23:00,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:23:00,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:23:00,016 INFO L158 Benchmark]: Toolchain (without parser) took 10082.87ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 112.5MB in the beginning and 136.6MB in the end (delta: -24.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-26 00:23:00,016 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 115.3MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:23:00,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.61ms. Allocated memory is still 144.7MB. Free memory was 112.5MB in the beginning and 84.6MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:23:00,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.97ms. Allocated memory is still 144.7MB. Free memory was 84.6MB in the beginning and 82.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:23:00,017 INFO L158 Benchmark]: Boogie Preprocessor took 48.39ms. Allocated memory is still 144.7MB. Free memory was 82.1MB in the beginning and 80.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:23:00,017 INFO L158 Benchmark]: RCFGBuilder took 547.79ms. Allocated memory is still 144.7MB. Free memory was 80.5MB in the beginning and 66.4MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:23:00,018 INFO L158 Benchmark]: TraceAbstraction took 8642.15ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 65.4MB in the beginning and 139.8MB in the end (delta: -74.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:23:00,018 INFO L158 Benchmark]: Witness Printer took 53.84ms. Allocated memory is still 209.7MB. Free memory was 139.8MB in the beginning and 136.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:23:00,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 115.3MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.61ms. Allocated memory is still 144.7MB. Free memory was 112.5MB in the beginning and 84.6MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.97ms. Allocated memory is still 144.7MB. Free memory was 84.6MB in the beginning and 82.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.39ms. Allocated memory is still 144.7MB. Free memory was 82.1MB in the beginning and 80.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.79ms. Allocated memory is still 144.7MB. Free memory was 80.5MB in the beginning and 66.4MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8642.15ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 65.4MB in the beginning and 139.8MB in the end (delta: -74.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.84ms. Allocated memory is still 209.7MB. Free memory was 139.8MB in the beginning and 136.6MB 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: 3.6s, 94 PlacesBefore, 24 PlacesAfterwards, 94 TransitionsBefore, 21 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 108 TotalNumberOfCompositions, 1922 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1484, independent: 1400, independent conditional: 0, independent unconditional: 1400, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 983, independent: 955, independent conditional: 0, independent unconditional: 955, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 983, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 227, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1484, independent: 445, independent conditional: 0, independent unconditional: 445, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 983, unknown conditional: 0, unknown unconditional: 983] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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 3 procedures, 126 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 134 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 2 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 286/329 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! [2022-11-26 00:23:00,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b0a29c-f2c3-4476-b8e8-f06a1ff8ba40/bin/utaipan-ByfvJB40ur/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