./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array22_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array22_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta --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 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b --- 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-dbf71c6-m [2022-10-17 17:21:35,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:21:35,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:21:36,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:21:36,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:21:36,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:21:36,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:21:36,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:21:36,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:21:36,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:21:36,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:21:36,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:21:36,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:21:36,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:21:36,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:21:36,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:21:36,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:21:36,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:21:36,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:21:36,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:21:36,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:21:36,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:21:36,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:21:36,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:21:36,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:21:36,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:21:36,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:21:36,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:21:36,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:21:36,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:21:36,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:21:36,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:21:36,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:21:36,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:21:36,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:21:36,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:21:36,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:21:36,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:21:36,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:21:36,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:21:36,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:21:36,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:21:36,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:21:36,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:21:36,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:21:36,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:21:36,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:21:36,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:21:36,134 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:21:36,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:21:36,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:21:36,135 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:21:36,136 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:21:36,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:21:36,137 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:21:36,137 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:21:36,137 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:21:36,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:21:36,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:21:36,138 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:21:36,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:21:36,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:21:36,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:21:36,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:21:36,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:21:36,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:21:36,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:21:36,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:21:36,140 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:21:36,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:21:36,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:21:36,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:21:36,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:21:36,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:21:36,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:36,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:21:36,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:21:36,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:21:36,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:21:36,143 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:21:36,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:21:36,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:21:36,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:21:36,144 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_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b [2022-10-17 17:21:36,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:21:36,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:21:36,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:21:36,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:21:36,561 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:21:36,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/array-patterns/array22_pattern.c [2022-10-17 17:21:36,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/data/12dc7c472/246c37e19a4b49f1aad7c5e78889832f/FLAG5c92030db [2022-10-17 17:21:37,224 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:21:37,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/sv-benchmarks/c/array-patterns/array22_pattern.c [2022-10-17 17:21:37,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/data/12dc7c472/246c37e19a4b49f1aad7c5e78889832f/FLAG5c92030db [2022-10-17 17:21:37,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/data/12dc7c472/246c37e19a4b49f1aad7c5e78889832f [2022-10-17 17:21:37,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:21:37,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:21:37,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:37,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:21:37,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:21:37,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b8bda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37, skipping insertion in model container [2022-10-17 17:21:37,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:21:37,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:21:37,846 WARN L230 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_e666db8c-408c-43eb-b2a9-611165969fd3/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2022-10-17 17:21:37,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:37,911 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:21:37,924 WARN L230 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_e666db8c-408c-43eb-b2a9-611165969fd3/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2022-10-17 17:21:37,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:37,951 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:21:37,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37 WrapperNode [2022-10-17 17:21:37,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:37,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:37,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:21:37,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:21:37,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:37,995 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2022-10-17 17:21:37,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:37,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:21:38,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:21:38,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:21:38,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:21:38,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:21:38,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:21:38,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:21:38,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (1/1) ... [2022-10-17 17:21:38,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:38,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:38,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:21:38,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:21:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2022-10-17 17:21:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2022-10-17 17:21:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:21:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:21:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:21:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:21:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:21:38,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:21:38,215 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:21:38,218 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:21:38,499 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:21:38,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:21:38,606 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-17 17:21:38,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:38 BoogieIcfgContainer [2022-10-17 17:21:38,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:21:38,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:21:38,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:21:38,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:21:38,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:21:37" (1/3) ... [2022-10-17 17:21:38,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61263520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:38, skipping insertion in model container [2022-10-17 17:21:38,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:37" (2/3) ... [2022-10-17 17:21:38,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61263520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:38, skipping insertion in model container [2022-10-17 17:21:38,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:38" (3/3) ... [2022-10-17 17:21:38,629 INFO L112 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2022-10-17 17:21:38,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:21:38,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:21:38,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:21:38,751 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;@7fd4373d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:21:38,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:21:38,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:21:38,767 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:38,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:38,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:38,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:38,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1938318667, now seen corresponding path program 1 times [2022-10-17 17:21:38,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:38,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027277802] [2022-10-17 17:21:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:38,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:38,926 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:38,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945488074] [2022-10-17 17:21:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:38,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:38,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:38,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:38,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:21:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:39,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 17:21:39,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:39,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:39,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:39,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027277802] [2022-10-17 17:21:39,094 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:39,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945488074] [2022-10-17 17:21:39,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945488074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:39,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:39,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:21:39,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588311893] [2022-10-17 17:21:39,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:39,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 17:21:39,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 17:21:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:21:39,162 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:21:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:39,244 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-10-17 17:21:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 17:21:39,247 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-10-17 17:21:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:39,256 INFO L225 Difference]: With dead ends: 33 [2022-10-17 17:21:39,256 INFO L226 Difference]: Without dead ends: 23 [2022-10-17 17:21:39,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:21:39,271 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:39,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-17 17:21:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-17 17:21:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-10-17 17:21:39,330 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2022-10-17 17:21:39,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:39,333 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-10-17 17:21:39,333 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:21:39,333 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-10-17 17:21:39,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 17:21:39,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:39,336 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:39,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:39,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:39,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:39,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:39,553 INFO L85 PathProgramCache]: Analyzing trace with hash -651899950, now seen corresponding path program 1 times [2022-10-17 17:21:39,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:39,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244341726] [2022-10-17 17:21:39,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:39,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:39,612 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:39,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500882769] [2022-10-17 17:21:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:39,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:39,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:39,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:39,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:21:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:39,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:21:39,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 17:21:39,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:39,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:39,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244341726] [2022-10-17 17:21:39,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:39,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500882769] [2022-10-17 17:21:39,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500882769] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:39,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:39,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:21:39,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734627923] [2022-10-17 17:21:39,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:39,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:21:39,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:21:39,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:21:39,914 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 17:21:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:40,004 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-10-17 17:21:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:21:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2022-10-17 17:21:40,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:40,006 INFO L225 Difference]: With dead ends: 28 [2022-10-17 17:21:40,006 INFO L226 Difference]: Without dead ends: 25 [2022-10-17 17:21:40,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:21:40,008 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:40,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-17 17:21:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-17 17:21:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2022-10-17 17:21:40,017 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 26 [2022-10-17 17:21:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:40,018 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2022-10-17 17:21:40,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 17:21:40,018 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-10-17 17:21:40,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 17:21:40,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:40,020 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:40,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:40,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-10-17 17:21:40,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash -741748724, now seen corresponding path program 1 times [2022-10-17 17:21:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:40,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373598404] [2022-10-17 17:21:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:40,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:40,255 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:40,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339964286] [2022-10-17 17:21:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:40,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:40,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:40,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:40,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 17:21:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:40,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 17:21:40,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 17:21:40,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:40,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:40,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373598404] [2022-10-17 17:21:40,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:40,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339964286] [2022-10-17 17:21:40,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339964286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:40,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:40,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:21:40,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037033882] [2022-10-17 17:21:40,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:40,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:21:40,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:40,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:21:40,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:21:40,401 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 17:21:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:40,527 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2022-10-17 17:21:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:21:40,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2022-10-17 17:21:40,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:40,553 INFO L225 Difference]: With dead ends: 51 [2022-10-17 17:21:40,554 INFO L226 Difference]: Without dead ends: 30 [2022-10-17 17:21:40,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:21:40,558 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:40,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 51 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-17 17:21:40,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-10-17 17:21:40,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-10-17 17:21:40,567 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 29 [2022-10-17 17:21:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:40,568 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-10-17 17:21:40,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 17:21:40,568 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-10-17 17:21:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 17:21:40,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:40,570 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:40,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:40,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:40,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:40,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1070521775, now seen corresponding path program 1 times [2022-10-17 17:21:40,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:40,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934502227] [2022-10-17 17:21:40,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:40,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:40,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:40,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218649153] [2022-10-17 17:21:40,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:40,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:40,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:40,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:40,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 17:21:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:40,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 17:21:40,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 17:21:40,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:40,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:40,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934502227] [2022-10-17 17:21:40,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:40,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218649153] [2022-10-17 17:21:40,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218649153] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:40,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:40,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 17:21:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308374477] [2022-10-17 17:21:40,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:40,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:21:40,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:40,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:21:40,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:21:40,977 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 17:21:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:41,035 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2022-10-17 17:21:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:21:41,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2022-10-17 17:21:41,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:41,037 INFO L225 Difference]: With dead ends: 50 [2022-10-17 17:21:41,037 INFO L226 Difference]: Without dead ends: 28 [2022-10-17 17:21:41,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:21:41,039 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:41,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:21:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-17 17:21:41,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-10-17 17:21:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-17 17:21:41,047 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 31 [2022-10-17 17:21:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:41,048 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-17 17:21:41,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 17:21:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-17 17:21:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:21:41,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:41,049 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:41,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:41,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:41,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:41,265 INFO L85 PathProgramCache]: Analyzing trace with hash 272504613, now seen corresponding path program 1 times [2022-10-17 17:21:41,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:41,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263705197] [2022-10-17 17:21:41,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:41,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:41,287 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:41,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576421954] [2022-10-17 17:21:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:41,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:41,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:41,296 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:41,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 17:21:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:41,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 17:21:41,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 17:21:41,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:21:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 17:21:41,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263705197] [2022-10-17 17:21:41,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576421954] [2022-10-17 17:21:41,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576421954] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:21:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2008793838] [2022-10-17 17:21:41,620 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-10-17 17:21:41,621 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:21:41,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:21:41,645 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:21:41,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:21:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:41,912 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-10-17 17:21:41,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-10-17 17:21:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:41,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 60 [2022-10-17 17:21:42,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:42,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2022-10-17 17:21:42,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:42,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:21:42,315 INFO L356 Elim1Store]: treesize reduction 109, result has 26.8 percent of original size [2022-10-17 17:21:42,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 351 treesize of output 354 [2022-10-17 17:21:42,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:42,761 INFO L356 Elim1Store]: treesize reduction 69, result has 9.2 percent of original size [2022-10-17 17:21:42,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 192 treesize of output 194 [2022-10-17 17:21:42,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:42,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2022-10-17 17:21:42,929 INFO L356 Elim1Store]: treesize reduction 34, result has 48.5 percent of original size [2022-10-17 17:21:42,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 108 [2022-10-17 17:21:42,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:43,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 54 [2022-10-17 17:21:43,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 80 [2022-10-17 17:21:44,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2022-10-17 17:21:44,147 INFO L356 Elim1Store]: treesize reduction 34, result has 48.5 percent of original size [2022-10-17 17:21:44,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 108 [2022-10-17 17:21:44,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:44,198 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2022-10-17 17:21:44,200 INFO L197 IcfgInterpreter]: Interpreting procedure outerBoundaryPatternCheck with input of size 18 for LOIs [2022-10-17 17:21:44,204 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:21:45,982 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '936#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (not (< |ULTIMATE.start_main_~row~0#1| ~ARR_SIZE~0)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= |ULTIMATE.start_main_~sum~0#1| 0) 1 0)) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2022-10-17 17:21:45,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:21:45,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-17 17:21:45,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-10-17 17:21:45,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353500731] [2022-10-17 17:21:45,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-17 17:21:45,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 17:21:45,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 17:21:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2022-10-17 17:21:45,986 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 9 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 17:21:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:46,135 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2022-10-17 17:21:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 17:21:46,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 32 [2022-10-17 17:21:46,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:46,138 INFO L225 Difference]: With dead ends: 54 [2022-10-17 17:21:46,138 INFO L226 Difference]: Without dead ends: 31 [2022-10-17 17:21:46,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2022-10-17 17:21:46,141 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 42 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:46,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 37 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:46,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-17 17:21:46,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-17 17:21:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:46,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-10-17 17:21:46,164 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 32 [2022-10-17 17:21:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:46,165 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-10-17 17:21:46,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 17:21:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-10-17 17:21:46,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 17:21:46,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:46,170 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:46,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-17 17:21:46,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:46,392 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:46,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1994024419, now seen corresponding path program 2 times [2022-10-17 17:21:46,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:46,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550777682] [2022-10-17 17:21:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:46,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:46,407 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:46,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941953481] [2022-10-17 17:21:46,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 17:21:46,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:46,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:46,409 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:46,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 17:21:46,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-17 17:21:46,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:21:46,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 17:21:46,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-17 17:21:46,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:21:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-17 17:21:46,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:46,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550777682] [2022-10-17 17:21:46,705 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:21:46,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941953481] [2022-10-17 17:21:46,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941953481] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:21:46,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [259352168] [2022-10-17 17:21:46,708 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-10-17 17:21:46,709 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:21:46,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:21:46,709 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:21:46,710 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:21:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:46,882 INFO L356 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2022-10-17 17:21:46,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 68 [2022-10-17 17:21:46,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:46,940 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-10-17 17:21:46,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-10-17 17:21:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:46,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2022-10-17 17:21:47,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:47,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:21:47,127 INFO L356 Elim1Store]: treesize reduction 109, result has 26.8 percent of original size [2022-10-17 17:21:47,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 351 treesize of output 354 [2022-10-17 17:21:47,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:47,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:47,408 INFO L356 Elim1Store]: treesize reduction 69, result has 9.2 percent of original size [2022-10-17 17:21:47,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 192 treesize of output 194 [2022-10-17 17:21:47,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:47,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2022-10-17 17:21:47,559 INFO L356 Elim1Store]: treesize reduction 34, result has 48.5 percent of original size [2022-10-17 17:21:47,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 108 [2022-10-17 17:21:47,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:47,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 54 [2022-10-17 17:21:48,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 80 [2022-10-17 17:21:48,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:48,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 104 treesize of output 103 [2022-10-17 17:21:48,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-10-17 17:21:48,515 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2022-10-17 17:21:48,518 INFO L197 IcfgInterpreter]: Interpreting procedure outerBoundaryPatternCheck with input of size 18 for LOIs [2022-10-17 17:21:48,521 INFO L180 IcfgInterpreter]: Interpretation finished [2022-10-17 17:21:50,191 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1303#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (not (< |ULTIMATE.start_main_~row~0#1| ~ARR_SIZE~0)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= |ULTIMATE.start_main_~sum~0#1| 0) 1 0)) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2022-10-17 17:21:50,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-10-17 17:21:50,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-17 17:21:50,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-10-17 17:21:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90227804] [2022-10-17 17:21:50,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-17 17:21:50,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 17:21:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:50,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 17:21:50,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2022-10-17 17:21:50,193 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 9 states, 7 states have (on average 4.0) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 17:21:50,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:50,340 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2022-10-17 17:21:50,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 17:21:50,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.0) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 34 [2022-10-17 17:21:50,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:50,342 INFO L225 Difference]: With dead ends: 66 [2022-10-17 17:21:50,342 INFO L226 Difference]: Without dead ends: 45 [2022-10-17 17:21:50,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2022-10-17 17:21:50,344 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 57 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:50,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 29 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-17 17:21:50,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-10-17 17:21:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 17:21:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2022-10-17 17:21:50,355 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 34 [2022-10-17 17:21:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:50,356 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-10-17 17:21:50,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.0) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 17:21:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-10-17 17:21:50,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 17:21:50,357 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:50,358 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:50,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:50,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-17 17:21:50,577 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:50,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1831697292, now seen corresponding path program 3 times [2022-10-17 17:21:50,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:50,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219835896] [2022-10-17 17:21:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:50,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:50,601 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:21:50,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857898991] [2022-10-17 17:21:50,607 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 17:21:50,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:21:50,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:50,612 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:21:50,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e666db8c-408c-43eb-b2a9-611165969fd3/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 17:21:52,616 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 17:21:52,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 17:21:52,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 99 conjunts are in the unsatisfiable core [2022-10-17 17:21:52,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:52,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 50 [2022-10-17 17:21:52,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-10-17 17:21:52,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-10-17 17:21:52,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2022-10-17 17:21:52,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:52,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:21:52,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 66 treesize of output 139 [2022-10-17 17:21:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:52,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:21:52,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:21:52,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 89 treesize of output 24 [2022-10-17 17:21:53,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 70 [2022-10-17 17:21:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,127 INFO L356 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2022-10-17 17:21:53,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 69 treesize of output 144 [2022-10-17 17:21:53,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,205 INFO L356 Elim1Store]: treesize reduction 98, result has 11.7 percent of original size [2022-10-17 17:21:53,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 22 [2022-10-17 17:21:53,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 118 [2022-10-17 17:21:53,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,407 INFO L356 Elim1Store]: treesize reduction 102, result has 1.0 percent of original size [2022-10-17 17:21:53,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 208 [2022-10-17 17:21:53,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:53,493 INFO L356 Elim1Store]: treesize reduction 54, result has 11.5 percent of original size [2022-10-17 17:21:53,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 186 treesize of output 75 [2022-10-17 17:21:55,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 95 [2022-10-17 17:21:55,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,397 INFO L356 Elim1Store]: treesize reduction 282, result has 13.2 percent of original size [2022-10-17 17:21:55,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 94 treesize of output 201 [2022-10-17 17:21:55,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:55,600 INFO L356 Elim1Store]: treesize reduction 259, result has 20.6 percent of original size [2022-10-17 17:21:55,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 126 treesize of output 97 [2022-10-17 17:21:58,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 289 [2022-10-17 17:21:58,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:21:58,908 INFO L244 Elim1Store]: Index analysis took 110 ms [2022-10-17 17:21:59,325 INFO L356 Elim1Store]: treesize reduction 628, result has 0.2 percent of original size [2022-10-17 17:21:59,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 292 treesize of output 943 [2022-10-17 17:22:00,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:00,650 INFO L244 Elim1Store]: Index analysis took 128 ms [2022-10-17 17:22:00,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:04,115 INFO L356 Elim1Store]: treesize reduction 1106, result has 13.1 percent of original size [2022-10-17 17:22:04,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 653 treesize of output 1896 [2022-10-17 17:22:05,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:05,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:05,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:05,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,175 INFO L244 Elim1Store]: Index analysis took 254 ms [2022-10-17 17:22:06,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 826 treesize of output 1483 [2022-10-17 17:22:06,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:06,653 INFO L244 Elim1Store]: Index analysis took 311 ms [2022-10-17 17:22:06,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 826 treesize of output 1483 [2022-10-17 17:22:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:06,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,192 INFO L244 Elim1Store]: Index analysis took 443 ms [2022-10-17 17:22:07,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,564 INFO L356 Elim1Store]: treesize reduction 204, result has 0.5 percent of original size [2022-10-17 17:22:07,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 597 treesize of output 523 [2022-10-17 17:22:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,810 INFO L244 Elim1Store]: Index analysis took 150 ms [2022-10-17 17:22:07,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:07,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:22:07,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 597 treesize of output 550 [2022-10-17 17:22:08,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:22:08,703 INFO L356 Elim1Store]: treesize reduction 764, result has 20.2 percent of original size [2022-10-17 17:22:08,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 378 treesize of output 324