./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/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_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 --- 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 00:54:27,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:54:27,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:54:27,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:54:27,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:54:27,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:54:27,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:54:27,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:54:27,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:54:27,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:54:27,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:54:27,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:54:27,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:54:27,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:54:27,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:54:27,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:54:27,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:54:27,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:54:27,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:54:27,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:54:27,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:54:27,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:54:27,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:54:27,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:54:27,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:54:27,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:54:27,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:54:27,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:54:27,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:54:27,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:54:27,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:54:27,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:54:27,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:54:27,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:54:27,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:54:27,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:54:27,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:54:27,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:54:27,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:54:27,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:54:27,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:54:27,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:54:28,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:54:28,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:54:28,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:54:28,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:54:28,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:54:28,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:54:28,032 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:54:28,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:54:28,032 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:54:28,033 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:54:28,033 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:54:28,033 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:54:28,033 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:54:28,034 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:54:28,034 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:54:28,034 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:54:28,034 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:54:28,035 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:54:28,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:54:28,036 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:54:28,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:54:28,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:54:28,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:54:28,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:54:28,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:54:28,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:54:28,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:54:28,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:54:28,043 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:54:28,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:54:28,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:54:28,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:54:28,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:54:28,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:54:28,057 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:54:28,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:54:28,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:54:28,058 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:54:28,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:54:28,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:54:28,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:54:28,059 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_0481d57c-36a4-4c9e-bf62-9c753e0657ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 [2022-11-26 00:54:28,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:54:28,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:54:28,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:54:28,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:54:28,379 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:54:28,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-11-26 00:54:31,374 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:54:31,577 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:54:31,577 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-11-26 00:54:31,584 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data/995a23608/709f61d486bb4d18a190bf61b27a5165/FLAGa51604e2c [2022-11-26 00:54:31,602 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data/995a23608/709f61d486bb4d18a190bf61b27a5165 [2022-11-26 00:54:31,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:54:31,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:54:31,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:54:31,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:54:31,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:54:31,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:54:31" (1/1) ... [2022-11-26 00:54:31,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3780afdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:31, skipping insertion in model container [2022-11-26 00:54:31,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:54:31" (1/1) ... [2022-11-26 00:54:31,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:54:31,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:54:31,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-11-26 00:54:31,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:54:34,100 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:54:34,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-11-26 00:54:34,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:54:34,178 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:54:34,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34 WrapperNode [2022-11-26 00:54:34,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:54:34,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:54:34,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:54:34,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:54:34,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,285 INFO L138 Inliner]: procedures = 16, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-11-26 00:54:34,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:54:34,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:54:34,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:54:34,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:54:34,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:54:34,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:54:34,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:54:34,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:54:34,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (1/1) ... [2022-11-26 00:54:34,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:54:34,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:54:34,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:54:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:54:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:54:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:54:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:54:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:54:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:54:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:54:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:54:34,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:54:34,538 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:54:34,540 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:54:34,735 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:54:34,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:54:34,820 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:54:34,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:54:34 BoogieIcfgContainer [2022-11-26 00:54:34,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:54:34,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:54:34,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:54:34,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:54:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:54:31" (1/3) ... [2022-11-26 00:54:34,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6523a257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:54:34, skipping insertion in model container [2022-11-26 00:54:34,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:34" (2/3) ... [2022-11-26 00:54:34,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6523a257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:54:34, skipping insertion in model container [2022-11-26 00:54:34,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:54:34" (3/3) ... [2022-11-26 00:54:34,832 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_single_elem_init.i [2022-11-26 00:54:34,853 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:54:34,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:54:34,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:54:34,913 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;@57d687ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:54:34,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:54:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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 00:54:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:54:34,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:34,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:54:34,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:54:34,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1506668624, now seen corresponding path program 1 times [2022-11-26 00:54:34,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:34,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715981416] [2022-11-26 00:54:34,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:34,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:35,255 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 00:54:35,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:35,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715981416] [2022-11-26 00:54:35,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715981416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:35,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:35,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:54:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669359585] [2022-11-26 00:54:35,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:35,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:54:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:35,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:54:35,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:54:35,303 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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, 3 states have (on average 2.0) internal successors, (6), 2 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 00:54:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:35,356 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2022-11-26 00:54:35,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:54:35,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 6 [2022-11-26 00:54:35,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:35,369 INFO L225 Difference]: With dead ends: 26 [2022-11-26 00:54:35,369 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:54:35,372 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 00:54:35,376 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:35,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:54:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:54:35,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2022-11-26 00:54:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 00:54:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-26 00:54:35,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2022-11-26 00:54:35,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:35,414 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-26 00:54:35,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 00:54:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-26 00:54:35,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:54:35,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:35,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:35,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:54:35,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:54:35,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:35,418 INFO L85 PathProgramCache]: Analyzing trace with hash 486073672, now seen corresponding path program 1 times [2022-11-26 00:54:35,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:35,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85798042] [2022-11-26 00:54:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:35,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:35,604 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 00:54:35,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:35,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85798042] [2022-11-26 00:54:35,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85798042] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:54:35,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573710106] [2022-11-26 00:54:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:35,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:54:35,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:54:35,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:54:35,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:54:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:35,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:54:35,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:54:35,780 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 00:54:35,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:54:35,803 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 00:54:35,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573710106] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:54:35,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1809370276] [2022-11-26 00:54:35,824 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:54:35,825 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:54:35,829 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:54:35,834 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:54:35,835 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:54:35,908 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 22 treesize of output 22 [2022-11-26 00:54:35,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:35,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:35,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:35,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 00:54:36,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-11-26 00:54:36,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 81 [2022-11-26 00:54:36,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 64 [2022-11-26 00:54:36,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 194 [2022-11-26 00:54:36,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:36,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 74 [2022-11-26 00:54:36,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 14 [2022-11-26 00:54:36,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-26 00:54:36,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:54:36,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2022-11-26 00:54:36,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-26 00:54:36,922 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-26 00:54:36,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 227 [2022-11-26 00:54:36,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 132 [2022-11-26 00:54:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:37,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:37,261 INFO L321 Elim1Store]: treesize reduction 86, result has 23.9 percent of original size [2022-11-26 00:54:37,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1079 treesize of output 1156 [2022-11-26 00:54:37,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:37,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 147 [2022-11-26 00:54:38,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:38,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:38,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:38,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:38,071 INFO L321 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2022-11-26 00:54:38,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 343 treesize of output 995 [2022-11-26 00:54:38,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 1892 treesize of output 6007 [2022-11-26 00:54:38,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:38,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:38,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 945 treesize of output 1324 [2022-11-26 00:54:38,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:38,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:38,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:38,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:39,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:39,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:39,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:39,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 420 treesize of output 3298 [2022-11-26 00:54:39,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:39,133 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:54:41,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:41,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:41,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:41,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 165 [2022-11-26 00:54:41,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:41,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:42,191 INFO L321 Elim1Store]: treesize reduction 198, result has 17.2 percent of original size [2022-11-26 00:54:42,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 17436 treesize of output 17633 [2022-11-26 00:54:43,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:43,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:44,148 INFO L321 Elim1Store]: treesize reduction 148, result has 6.9 percent of original size [2022-11-26 00:54:44,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 31095 treesize of output 14707 [2022-11-26 00:54:46,816 INFO L321 Elim1Store]: treesize reduction 81, result has 18.2 percent of original size [2022-11-26 00:54:46,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 934 treesize of output 743 [2022-11-26 00:54:46,898 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:54:47,368 INFO L217 Elim1Store]: Index analysis took 398 ms [2022-11-26 00:54:47,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 97 [2022-11-26 00:54:47,406 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:54:47,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 11 [2022-11-26 00:54:47,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:47,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:47,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 849 treesize of output 1336 [2022-11-26 00:54:47,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:47,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:48,869 INFO L321 Elim1Store]: treesize reduction 182, result has 21.9 percent of original size [2022-11-26 00:54:48,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 663 treesize of output 980 [2022-11-26 00:54:49,049 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:54:49,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,297 INFO L217 Elim1Store]: Index analysis took 159 ms [2022-11-26 00:54:49,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 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 213 treesize of output 796 [2022-11-26 00:54:49,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:49,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:49,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:49,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:49,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:49,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 796 [2022-11-26 00:54:49,486 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:54:49,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2022-11-26 00:54:49,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2022-11-26 00:54:50,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 195 [2022-11-26 00:54:50,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 211 [2022-11-26 00:54:50,470 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:54:50,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 195 [2022-11-26 00:54:51,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,674 INFO L217 Elim1Store]: Index analysis took 112 ms [2022-11-26 00:54:51,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 2820 treesize of output 16398 [2022-11-26 00:54:51,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:51,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 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 2820 treesize of output 16582 [2022-11-26 00:54:52,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:52,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:52,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:52,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7828 treesize of output 4720 [2022-11-26 00:54:52,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:52,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:52,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 12396 treesize of output 5812 [2022-11-26 00:54:53,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13712 treesize of output 4898 [2022-11-26 00:54:53,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7828 treesize of output 4736 [2022-11-26 00:54:53,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:53,987 INFO L217 Elim1Store]: Index analysis took 129 ms [2022-11-26 00:54:54,071 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-26 00:54:54,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 13719 treesize of output 4903 [2022-11-26 00:54:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:54,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:54,359 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-26 00:54:54,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 7835 treesize of output 4741 [2022-11-26 00:54:54,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:54,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:54,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 466 [2022-11-26 00:54:55,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13714 treesize of output 4890 [2022-11-26 00:54:55,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:55,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7830 treesize of output 4722 [2022-11-26 00:54:55,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 12391 treesize of output 5809 [2022-11-26 00:54:55,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:55,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7823 treesize of output 4717 [2022-11-26 00:54:55,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:55,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7816 treesize of output 4712 [2022-11-26 00:54:55,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:55,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 12384 treesize of output 5804 [2022-11-26 00:54:56,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:56,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:56,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7823 treesize of output 4717 [2022-11-26 00:54:56,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:56,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:56,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13707 treesize of output 4885 [2022-11-26 00:54:56,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:56,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:56,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 376 treesize of output 461 [2022-11-26 00:54:56,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 376 treesize of output 571 [2022-11-26 00:54:56,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:56,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7816 treesize of output 4728 [2022-11-26 00:54:57,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13700 treesize of output 4890 [2022-11-26 00:54:57,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7823 treesize of output 4733 [2022-11-26 00:54:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 13707 treesize of output 4895 [2022-11-26 00:54:57,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:57,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 376 treesize of output 571 [2022-11-26 00:54:58,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:58,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 434 [2022-11-26 00:54:58,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 13 [2022-11-26 00:54:59,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 572 [2022-11-26 00:54:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 133 [2022-11-26 00:54:59,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 712 treesize of output 613 [2022-11-26 00:54:59,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:59,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 123 [2022-11-26 00:55:00,362 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:00,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:00,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:00,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 537 treesize of output 571 [2022-11-26 00:55:00,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:00,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,183 INFO L321 Elim1Store]: treesize reduction 108, result has 32.1 percent of original size [2022-11-26 00:55:01,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1009 treesize of output 1058 [2022-11-26 00:55:01,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,484 INFO L321 Elim1Store]: treesize reduction 84, result has 37.8 percent of original size [2022-11-26 00:55:01,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 695 treesize of output 762 [2022-11-26 00:55:01,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:01,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:01,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 113 treesize of output 110 [2022-11-26 00:55:01,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,648 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-26 00:55:01,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 24 [2022-11-26 00:55:01,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:01,790 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:55:01,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 45 [2022-11-26 00:55:02,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,227 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,244 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,251 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,271 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 17 [2022-11-26 00:55:02,300 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,310 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,326 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,336 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,363 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,383 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:02,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-26 00:55:02,419 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,429 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,442 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,453 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:55:02,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-26 00:55:02,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:55:02,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-26 00:55:02,597 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:55:03,008 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '103#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) |ULTIMATE.start_main_~#s1~0#1.offset|) (select (select |#memory_int| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 8) |~#a~0.offset|))) (= (ite (= |ULTIMATE.start_main_#t~mem12#1| 10) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#s1~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= 30 (select (select |#memory_int| |~#a~0.base|) (+ |~#a~0.offset| 24))) (= (select |#valid| |ULTIMATE.start_main_~#s1~0#1.base|) 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) (+ |ULTIMATE.start_main_~#s1~0#1.offset| 4)) 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= 8 (select |#length| |ULTIMATE.start_main_~#s1~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#s1~0#1.base|) (= 3 |~#a~0.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) |ULTIMATE.start_main_~#s1~0#1.offset|) |ULTIMATE.start_main_#t~mem12#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |~#a~0.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#s1~0#1.base|) (+ |ULTIMATE.start_main_~#s1~0#1.offset| 4)) (select (select |#memory_int| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 8) 4 |~#a~0.offset|))) (= 40 (select (select |#memory_int| |~#a~0.base|) (+ 28 |~#a~0.offset|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:55:03,008 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:55:03,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:55:03,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 00:55:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733826548] [2022-11-26 00:55:03,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:55:03,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:55:03,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:55:03,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:55:03,012 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 00:55:03,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:03,089 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-11-26 00:55:03,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:55:03,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 7 [2022-11-26 00:55:03,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:03,091 INFO L225 Difference]: With dead ends: 42 [2022-11-26 00:55:03,092 INFO L226 Difference]: Without dead ends: 35 [2022-11-26 00:55:03,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:55:03,095 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 42 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:03,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:55:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-26 00:55:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 13. [2022-11-26 00:55:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-26 00:55:03,108 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2022-11-26 00:55:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:03,108 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-26 00:55:03,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 00:55:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-26 00:55:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:55:03,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:03,109 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:03,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:55:03,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:03,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1945717328, now seen corresponding path program 2 times [2022-11-26 00:55:03,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:03,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688900934] [2022-11-26 00:55:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:03,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:03,602 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 00:55:03,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:03,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688900934] [2022-11-26 00:55:03,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688900934] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:55:03,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249624543] [2022-11-26 00:55:03,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:55:03,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:03,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:03,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:55:03,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:55:03,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-26 00:55:03,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:03,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:55:03,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:03,771 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 00:55:03,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:03,849 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 00:55:03,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249624543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:03,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1263653004] [2022-11-26 00:55:03,857 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:55:03,862 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:55:03,862 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:55:03,863 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:55:03,863 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:55:03,875 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 22 treesize of output 22 [2022-11-26 00:55:03,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 00:55:03,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,957 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:55:03,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 41 [2022-11-26 00:55:03,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:03,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 81 [2022-11-26 00:55:03,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 64 [2022-11-26 00:55:04,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 198 [2022-11-26 00:55:04,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 119 [2022-11-26 00:55:04,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-11-26 00:55:04,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 79 [2022-11-26 00:55:04,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-26 00:55:04,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2022-11-26 00:55:04,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:55:04,308 INFO L321 Elim1Store]: treesize reduction 42, result has 39.1 percent of original size [2022-11-26 00:55:04,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 132 [2022-11-26 00:55:04,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,392 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:55:04,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 49 [2022-11-26 00:55:04,553 INFO L321 Elim1Store]: treesize reduction 46, result has 35.2 percent of original size [2022-11-26 00:55:04,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 789 treesize of output 760 [2022-11-26 00:55:04,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 635 treesize of output 627 [2022-11-26 00:55:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,715 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-26 00:55:04,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 21 [2022-11-26 00:55:04,793 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-26 00:55:04,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 39 [2022-11-26 00:55:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-26 00:55:04,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2022-11-26 00:55:04,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,898 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:55:04,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 54 [2022-11-26 00:55:04,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2022-11-26 00:55:04,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:04,957 INFO L321 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2022-11-26 00:55:04,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 46 [2022-11-26 00:55:04,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2022-11-26 00:55:04,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2022-11-26 00:55:05,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-26 00:55:05,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2022-11-26 00:55:05,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:55:05,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-26 00:55:05,237 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-26 00:55:05,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 232 [2022-11-26 00:55:05,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 132 [2022-11-26 00:55:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:05,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:05,472 INFO L321 Elim1Store]: treesize reduction 94, result has 16.8 percent of original size [2022-11-26 00:55:05,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1079 treesize of output 1148 [2022-11-26 00:55:05,627 INFO L321 Elim1Store]: treesize reduction 121, result has 11.7 percent of original size [2022-11-26 00:55:05,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 610 treesize of output 567 [2022-11-26 00:55:05,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:05,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:05,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 82 treesize of output 72 [2022-11-26 00:55:05,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:05,774 INFO L321 Elim1Store]: treesize reduction 68, result has 25.3 percent of original size [2022-11-26 00:55:05,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 86 treesize of output 83 [2022-11-26 00:55:05,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:05,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:05,811 INFO L321 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-11-26 00:55:05,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 1 [2022-11-26 00:55:05,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-11-26 00:55:05,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:05,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:05,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 193 treesize of output 161 [2022-11-26 00:55:06,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:06,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:06,109 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:55:06,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 496 treesize of output 489 [2022-11-26 00:55:06,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:06,170 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:55:06,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 117 [2022-11-26 00:55:06,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:06,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:06,231 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-26 00:55:06,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 244 treesize of output 110 [2022-11-26 00:55:06,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:55:06,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:06,448 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) 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.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) 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 00:55:06,452 INFO L158 Benchmark]: Toolchain (without parser) took 34846.45ms. Allocated memory was 169.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 139.3MB in the beginning and 680.4MB in the end (delta: -541.1MB). Peak memory consumption was 552.9MB. Max. memory is 16.1GB. [2022-11-26 00:55:06,453 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:55:06,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2567.65ms. Allocated memory was 169.9MB in the beginning and 480.2MB in the end (delta: 310.4MB). Free memory was 139.1MB in the beginning and 240.7MB in the end (delta: -101.6MB). Peak memory consumption was 311.1MB. Max. memory is 16.1GB. [2022-11-26 00:55:06,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.93ms. Allocated memory is still 480.2MB. Free memory was 240.7MB in the beginning and 238.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:55:06,453 INFO L158 Benchmark]: Boogie Preprocessor took 45.71ms. Allocated memory is still 480.2MB. Free memory was 238.6MB in the beginning and 237.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:55:06,453 INFO L158 Benchmark]: RCFGBuilder took 490.27ms. Allocated memory is still 480.2MB. Free memory was 237.5MB in the beginning and 219.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:55:06,454 INFO L158 Benchmark]: TraceAbstraction took 31626.66ms. Allocated memory was 480.2MB in the beginning and 1.3GB in the end (delta: 782.2MB). Free memory was 219.7MB in the beginning and 680.4MB in the end (delta: -460.7MB). Peak memory consumption was 321.5MB. Max. memory is 16.1GB. [2022-11-26 00:55:06,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2567.65ms. Allocated memory was 169.9MB in the beginning and 480.2MB in the end (delta: 310.4MB). Free memory was 139.1MB in the beginning and 240.7MB in the end (delta: -101.6MB). Peak memory consumption was 311.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.93ms. Allocated memory is still 480.2MB. Free memory was 240.7MB in the beginning and 238.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.71ms. Allocated memory is still 480.2MB. Free memory was 238.6MB in the beginning and 237.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 490.27ms. Allocated memory is still 480.2MB. Free memory was 237.5MB in the beginning and 219.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 31626.66ms. Allocated memory was 480.2MB in the beginning and 1.3GB in the end (delta: 782.2MB). Free memory was 219.7MB in the beginning and 680.4MB in the end (delta: -460.7MB). Peak memory consumption was 321.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-26 00:55:06,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/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_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 --- 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 00:55:09,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:55:09,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:55:09,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:55:09,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:55:09,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:55:09,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:55:09,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:55:09,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:55:09,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:55:09,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:55:09,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:55:09,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:55:09,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:55:09,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:55:09,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:55:09,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:55:09,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:55:09,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:55:09,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:55:09,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:55:09,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:55:09,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:55:09,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:55:09,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:55:09,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:55:09,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:55:09,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:55:09,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:55:09,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:55:09,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:55:09,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:55:09,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:55:09,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:55:09,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:55:09,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:55:09,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:55:09,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:55:09,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:55:09,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:55:09,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:55:09,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-26 00:55:09,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:55:09,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:55:09,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:55:09,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:55:09,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:55:09,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:55:09,207 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:55:09,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:55:09,207 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:55:09,207 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:55:09,208 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:55:09,209 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:55:09,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:55:09,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:55:09,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:55:09,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:55:09,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:55:09,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:55:09,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:55:09,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:55:09,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:55:09,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:55:09,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:55:09,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:55:09,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:55:09,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:55:09,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:55:09,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:55:09,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:55:09,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:55:09,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:55:09,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:55:09,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:55:09,215 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:55:09,215 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:55:09,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:55:09,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:55:09,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:55:09,216 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0481d57c-36a4-4c9e-bf62-9c753e0657ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa70df64230ecddb2965be82bddd3a5869e70ae49ad8ed2ef9f27fa2ce4c5f93 [2022-11-26 00:55:09,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:55:09,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:55:09,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:55:09,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:55:09,714 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:55:09,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-11-26 00:55:12,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:55:13,154 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:55:13,155 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i [2022-11-26 00:55:13,161 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data/bc2eafce2/df7c21dde690478bbeb3456e8a5f5aec/FLAGc1a339e7b [2022-11-26 00:55:13,176 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/data/bc2eafce2/df7c21dde690478bbeb3456e8a5f5aec [2022-11-26 00:55:13,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:55:13,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:55:13,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:55:13,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:55:13,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:55:13,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:13" (1/1) ... [2022-11-26 00:55:13,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69db2153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:13, skipping insertion in model container [2022-11-26 00:55:13,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:13" (1/1) ... [2022-11-26 00:55:13,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:55:13,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:55:13,393 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-11-26 00:55:13,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:55:15,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:55:15,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/sv-benchmarks/c/array-industry-pattern/array_of_struct_single_elem_init.i[865,878] [2022-11-26 00:55:15,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:55:15,622 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:55:15,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15 WrapperNode [2022-11-26 00:55:15,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:55:15,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:55:15,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:55:15,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:55:15,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,662 INFO L138 Inliner]: procedures = 19, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-11-26 00:55:15,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:55:15,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:55:15,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:55:15,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:55:15,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:55:15,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:55:15,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:55:15,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:55:15,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (1/1) ... [2022-11-26 00:55:15,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:55:15,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:15,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:55:15,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:55:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:55:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:55:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 00:55:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:55:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:55:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:55:15,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:55:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:55:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:55:15,917 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:55:15,920 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:55:16,160 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:55:16,165 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:55:16,166 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:55:16,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:16 BoogieIcfgContainer [2022-11-26 00:55:16,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:55:16,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:55:16,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:55:16,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:55:16,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:55:13" (1/3) ... [2022-11-26 00:55:16,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2103dc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:55:16, skipping insertion in model container [2022-11-26 00:55:16,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:15" (2/3) ... [2022-11-26 00:55:16,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2103dc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:55:16, skipping insertion in model container [2022-11-26 00:55:16,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:16" (3/3) ... [2022-11-26 00:55:16,182 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_single_elem_init.i [2022-11-26 00:55:16,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:55:16,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:55:16,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:55:16,282 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;@26a2e4e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:55:16,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:55:16,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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 00:55:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:55:16,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:16,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:16,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:16,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:16,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1140000322, now seen corresponding path program 1 times [2022-11-26 00:55:16,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:55:16,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466113516] [2022-11-26 00:55:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:16,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:16,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:55:16,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:55:16,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:55:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:16,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:55:16,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:16,485 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 00:55:16,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:55:16,486 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:55:16,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466113516] [2022-11-26 00:55:16,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466113516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:16,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:16,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:55:16,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744042190] [2022-11-26 00:55:16,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:16,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:55:16,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:55:16,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:55:16,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:55:16,526 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 00:55:16,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:16,542 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-26 00:55:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:55:16,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:55:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:16,550 INFO L225 Difference]: With dead ends: 32 [2022-11-26 00:55:16,551 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 00:55:16,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:55:16,557 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:16,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:55:16,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 00:55:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-26 00:55:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 00:55:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2022-11-26 00:55:16,590 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2022-11-26 00:55:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:16,590 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-11-26 00:55:16,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 00:55:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-26 00:55:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:55:16,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:16,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:16,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-26 00:55:16,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:16,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:16,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1807612939, now seen corresponding path program 1 times [2022-11-26 00:55:16,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:55:16,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830237802] [2022-11-26 00:55:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:16,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:16,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:55:16,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:55:16,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:55:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:16,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:55:16,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:16,922 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 00:55:16,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:55:16,922 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:55:16,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830237802] [2022-11-26 00:55:16,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830237802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:16,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:16,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:55:16,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628496960] [2022-11-26 00:55:16,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:16,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:55:16,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:55:16,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:55:16,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:55:16,926 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:16,973 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-11-26 00:55:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:55:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:55:16,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:16,976 INFO L225 Difference]: With dead ends: 36 [2022-11-26 00:55:16,976 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:55:16,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 00:55:16,977 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:16,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:55:16,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:55:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2022-11-26 00:55:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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 00:55:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-26 00:55:16,984 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2022-11-26 00:55:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:16,985 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-26 00:55:16,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-26 00:55:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:55:16,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:16,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:16,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:55:17,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:17,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:17,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2006795472, now seen corresponding path program 1 times [2022-11-26 00:55:17,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:55:17,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804165605] [2022-11-26 00:55:17,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:17,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:17,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:55:17,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:55:17,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 00:55:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:17,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:55:17,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:17,352 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 00:55:17,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:17,402 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 00:55:17,404 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:55:17,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804165605] [2022-11-26 00:55:17,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804165605] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:17,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1137043923] [2022-11-26 00:55:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:55:17,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:55:17,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:55:17,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-26 00:55:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:17,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:55:17,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:17,613 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 00:55:17,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:17,643 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 00:55:17,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1137043923] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:17,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955356919] [2022-11-26 00:55:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:17,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:17,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:17,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:55:17,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:55:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:17,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:55:17,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:17,777 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 00:55:17,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:17,826 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 00:55:17,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955356919] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:17,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:55:17,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-11-26 00:55:17,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146934093] [2022-11-26 00:55:17,828 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:55:17,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:55:17,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:55:17,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:55:17,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:55:17,830 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 00:55:18,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:18,012 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2022-11-26 00:55:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:55:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 13 [2022-11-26 00:55:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:18,014 INFO L225 Difference]: With dead ends: 62 [2022-11-26 00:55:18,014 INFO L226 Difference]: Without dead ends: 53 [2022-11-26 00:55:18,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:55:18,015 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 92 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:18,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 56 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:55:18,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-26 00:55:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 28. [2022-11-26 00:55:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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 00:55:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-11-26 00:55:18,027 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 13 [2022-11-26 00:55:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:18,028 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-26 00:55:18,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 00:55:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-11-26 00:55:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:55:18,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:18,069 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:18,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-26 00:55:18,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-26 00:55:18,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-26 00:55:18,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:55:18,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:18,672 INFO L85 PathProgramCache]: Analyzing trace with hash -741908511, now seen corresponding path program 2 times [2022-11-26 00:55:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:55:18,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939173592] [2022-11-26 00:55:18,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:55:18,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:18,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:55:18,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:55:18,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-26 00:55:18,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:55:18,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:18,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:55:18,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:19,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:19,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:55:19,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939173592] [2022-11-26 00:55:19,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939173592] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:19,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [571942541] [2022-11-26 00:55:19,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:55:19,240 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:55:19,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:55:19,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:55:19,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-26 00:55:19,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:55:19,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:19,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:55:19,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:19,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:19,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [571942541] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:19,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747361166] [2022-11-26 00:55:19,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:55:19,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:19,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:55:19,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:55:19,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:55:19,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:19,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:55:19,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:19,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:19,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747361166] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:19,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:55:19,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-11-26 00:55:19,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642613745] [2022-11-26 00:55:19,897 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:55:19,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:55:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:55:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:55:19,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:55:19,901 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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 00:55:20,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:20,557 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2022-11-26 00:55:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:55:20,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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 25 [2022-11-26 00:55:20,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:20,560 INFO L225 Difference]: With dead ends: 134 [2022-11-26 00:55:20,560 INFO L226 Difference]: Without dead ends: 125 [2022-11-26 00:55:20,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:55:20,562 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 391 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:20,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 299 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:55:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-26 00:55:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 52. [2022-11-26 00:55:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 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 00:55:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2022-11-26 00:55:20,572 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 25 [2022-11-26 00:55:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:20,573 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2022-11-26 00:55:20,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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 00:55:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2022-11-26 00:55:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-26 00:55:20,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:20,574 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:20,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:55:20,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-26 00:55:20,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:55:21,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:55:21,182 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:21,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:21,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1207212861, now seen corresponding path program 3 times [2022-11-26 00:55:21,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:55:21,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921639122] [2022-11-26 00:55:21,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:55:21,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:55:21,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:55:21,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:55:21,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-26 00:55:22,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-26 00:55:22,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:22,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:55:22,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:22,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:23,449 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:55:23,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921639122] [2022-11-26 00:55:23,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921639122] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:23,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1866921260] [2022-11-26 00:55:23,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:55:23,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:55:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:55:23,451 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:55:23,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-26 00:55:32,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-26 00:55:32,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:32,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:55:32,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:32,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:32,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1866921260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:32,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700402341] [2022-11-26 00:55:32,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:55:32,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:32,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:32,646 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:55:32,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:58:40,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-26 00:58:40,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:58:40,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:58:40,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:58:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:40,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:58:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:40,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700402341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:58:40,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:58:40,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13, 14, 13, 14] total 25 [2022-11-26 00:58:40,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166062296] [2022-11-26 00:58:40,715 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:58:40,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-26 00:58:40,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:58:40,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-26 00:58:40,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:58:40,717 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 25 states, 25 states have (on average 3.64) internal successors, (91), 25 states have internal predecessors, (91), 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 00:58:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:44,063 INFO L93 Difference]: Finished difference Result 278 states and 359 transitions. [2022-11-26 00:58:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:58:44,065 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.64) internal successors, (91), 25 states have internal predecessors, (91), 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 49 [2022-11-26 00:58:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:44,067 INFO L225 Difference]: With dead ends: 278 [2022-11-26 00:58:44,067 INFO L226 Difference]: Without dead ends: 269 [2022-11-26 00:58:44,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=454, Invalid=806, Unknown=0, NotChecked=0, Total=1260 [2022-11-26 00:58:44,069 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1216 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:44,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1336 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:58:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-26 00:58:44,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 100. [2022-11-26 00:58:44,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 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 00:58:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2022-11-26 00:58:44,083 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 49 [2022-11-26 00:58:44,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:44,084 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2022-11-26 00:58:44,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.64) internal successors, (91), 25 states have internal predecessors, (91), 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 00:58:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2022-11-26 00:58:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-26 00:58:44,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:44,087 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:44,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:58:44,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:58:44,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:58:44,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:58:44,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:58:44,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:44,703 INFO L85 PathProgramCache]: Analyzing trace with hash 239950983, now seen corresponding path program 4 times [2022-11-26 00:58:44,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:58:44,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775527236] [2022-11-26 00:58:44,704 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:58:44,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:58:44,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:58:44,705 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:58:44,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-26 00:58:45,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:58:45,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:58:45,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 00:58:45,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:58:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:45,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:58:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:47,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:58:47,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775527236] [2022-11-26 00:58:47,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775527236] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:58:47,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1585242721] [2022-11-26 00:58:47,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:58:47,961 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:58:47,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:58:47,966 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:58:47,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-26 00:58:48,603 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:58:48,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:58:48,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 00:58:48,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:58:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:48,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:58:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:49,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1585242721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:58:49,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496599209] [2022-11-26 00:58:49,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:58:49,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:58:49,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:58:49,130 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:58:49,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-26 00:58:49,507 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:58:49,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:58:49,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 00:58:49,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:58:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:49,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:58:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:49,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496599209] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:58:49,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:58:49,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25, 25, 25, 25] total 48 [2022-11-26 00:58:49,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622954572] [2022-11-26 00:58:49,983 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:58:49,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-26 00:58:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:58:49,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-26 00:58:49,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2022-11-26 00:58:49,986 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 48 states, 48 states have (on average 3.8958333333333335) internal successors, (187), 48 states have internal predecessors, (187), 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 00:59:03,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:03,115 INFO L93 Difference]: Finished difference Result 566 states and 731 transitions. [2022-11-26 00:59:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-26 00:59:03,116 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.8958333333333335) internal successors, (187), 48 states have internal predecessors, (187), 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 97 [2022-11-26 00:59:03,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:03,119 INFO L225 Difference]: With dead ends: 566 [2022-11-26 00:59:03,120 INFO L226 Difference]: Without dead ends: 557 [2022-11-26 00:59:03,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2022-11-26 00:59:03,123 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 6065 mSDsluCounter, 5303 mSDsCounter, 0 mSdLazyCounter, 2826 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 2826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:03,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6065 Valid, 5537 Invalid, 3428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 2826 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:59:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-26 00:59:03,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 196. [2022-11-26 00:59:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.2564102564102564) internal successors, (245), 195 states have internal predecessors, (245), 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 00:59:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 245 transitions. [2022-11-26 00:59:03,148 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 245 transitions. Word has length 97 [2022-11-26 00:59:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:03,149 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 245 transitions. [2022-11-26 00:59:03,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.8958333333333335) internal successors, (187), 48 states have internal predecessors, (187), 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 00:59:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 245 transitions. [2022-11-26 00:59:03,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-26 00:59:03,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:03,156 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:03,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-26 00:59:03,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-26 00:59:03,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-26 00:59:03,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:59:03,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:59:03,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1120861169, now seen corresponding path program 5 times [2022-11-26 00:59:03,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:59:03,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029399460] [2022-11-26 00:59:03,765 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:59:03,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:59:03,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:59:03,767 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:59:03,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-26 00:59:19,009 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-26 00:59:19,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:59:19,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-26 00:59:19,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:59:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:20,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:59:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:32,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:59:32,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029399460] [2022-11-26 00:59:32,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029399460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:59:32,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1810830240] [2022-11-26 00:59:32,393 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:59:32,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:59:32,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:59:32,397 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:59:32,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0481d57c-36a4-4c9e-bf62-9c753e0657ed/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process