./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0 --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 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 --- 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-e04fb08 [2022-11-16 20:08:55,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:08:55,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:08:55,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:08:55,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:08:55,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:08:55,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:08:55,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:08:55,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:08:55,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:08:55,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:08:55,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:08:55,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:08:55,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:08:55,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:08:55,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:08:55,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:08:55,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:08:55,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:08:55,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:08:55,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:08:55,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:08:55,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:08:55,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:08:55,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:08:55,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:08:55,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:08:55,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:08:55,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:08:55,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:08:55,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:08:55,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:08:55,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:08:55,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:08:55,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:08:55,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:08:55,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:08:55,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:08:55,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:08:55,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:08:55,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:08:55,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:08:55,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:08:55,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:08:55,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:08:55,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:08:55,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:08:55,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:08:55,481 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:08:55,481 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:08:55,481 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:08:55,482 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:08:55,483 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:08:55,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:08:55,483 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:08:55,484 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:08:55,484 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:08:55,484 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:08:55,484 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:08:55,485 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:08:55,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:08:55,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:08:55,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:08:55,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:08:55,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:08:55,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:08:55,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:08:55,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:08:55,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:08:55,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:08:55,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:08:55,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:08:55,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:08:55,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:08:55,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:08:55,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:08:55,492 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:08:55,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:08:55,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:08:55,493 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:08:55,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:08:55,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:08:55,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:08:55,494 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_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 [2022-11-16 20:08:55,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:08:55,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:08:55,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:08:55,831 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:08:55,832 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:08:55,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2022-11-16 20:08:55,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/data/99136de6c/b0ce0bbe37e541fc80dc392ba2f5e2b5/FLAGcafbd0211 [2022-11-16 20:08:56,595 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:08:56,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2022-11-16 20:08:56,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/data/99136de6c/b0ce0bbe37e541fc80dc392ba2f5e2b5/FLAGcafbd0211 [2022-11-16 20:08:56,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/data/99136de6c/b0ce0bbe37e541fc80dc392ba2f5e2b5 [2022-11-16 20:08:56,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:08:56,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:08:56,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:08:56,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:08:56,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:08:56,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:56" (1/1) ... [2022-11-16 20:08:56,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d356a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:56, skipping insertion in model container [2022-11-16 20:08:56,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:56" (1/1) ... [2022-11-16 20:08:56,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:08:56,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:08:57,376 WARN L229 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_63ed66b7-280c-4a52-942d-f8ba933f58f9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i[33022,33035] [2022-11-16 20:08:57,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:08:57,559 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:08:57,584 WARN L229 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_63ed66b7-280c-4a52-942d-f8ba933f58f9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i[33022,33035] [2022-11-16 20:08:57,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:08:57,751 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:08:57,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57 WrapperNode [2022-11-16 20:08:57,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:08:57,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:08:57,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:08:57,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:08:57,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:57,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:57,889 INFO L138 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2167 [2022-11-16 20:08:57,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:08:57,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:08:57,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:08:57,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:08:57,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:57,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:57,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:57,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:58,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:58,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:58,072 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:58,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:58,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:08:58,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:08:58,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:08:58,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:08:58,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (1/1) ... [2022-11-16 20:08:58,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:08:58,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:08:58,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:08:58,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:08:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-11-16 20:08:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-11-16 20:08:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:08:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 20:08:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 20:08:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:08:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 20:08:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:08:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:08:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:08:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:08:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:08:58,498 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:08:58,500 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:09:00,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:09:01,831 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:09:01,831 INFO L300 CfgBuilder]: Removed 151 assume(true) statements. [2022-11-16 20:09:01,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:09:01 BoogieIcfgContainer [2022-11-16 20:09:01,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:09:01,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:09:01,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:09:01,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:09:01,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:08:56" (1/3) ... [2022-11-16 20:09:01,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55730ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:01, skipping insertion in model container [2022-11-16 20:09:01,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:57" (2/3) ... [2022-11-16 20:09:01,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55730ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:01, skipping insertion in model container [2022-11-16 20:09:01,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:09:01" (3/3) ... [2022-11-16 20:09:01,844 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-1.i [2022-11-16 20:09:01,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:09:01,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:09:01,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:09:01,924 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;@54da23ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:09:01,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:09:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 232 states have (on average 1.8275862068965518) internal successors, (424), 237 states have internal predecessors, (424), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-16 20:09:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:09:01,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:01,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:09:01,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:01,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:01,945 INFO L85 PathProgramCache]: Analyzing trace with hash 57065197, now seen corresponding path program 1 times [2022-11-16 20:09:01,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:01,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801648049] [2022-11-16 20:09:01,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:01,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:09:02,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:02,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801648049] [2022-11-16 20:09:02,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801648049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:02,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:02,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:09:02,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085526215] [2022-11-16 20:09:02,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:02,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:09:02,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:02,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:09:02,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:09:02,214 INFO L87 Difference]: Start difference. First operand has 251 states, 232 states have (on average 1.8275862068965518) internal successors, (424), 237 states have internal predecessors, (424), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:09:03,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 20:09:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:03,939 INFO L93 Difference]: Finished difference Result 501 states and 911 transitions. [2022-11-16 20:09:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:09:03,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 20:09:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:03,953 INFO L225 Difference]: With dead ends: 501 [2022-11-16 20:09:03,953 INFO L226 Difference]: Without dead ends: 249 [2022-11-16 20:09:03,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:09:03,959 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:03,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 20:09:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-16 20:09:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-11-16 20:09:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 20:09:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2022-11-16 20:09:04,013 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2022-11-16 20:09:04,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:04,014 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2022-11-16 20:09:04,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:09:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2022-11-16 20:09:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 20:09:04,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:04,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:09:04,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:09:04,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash -344877955, now seen corresponding path program 1 times [2022-11-16 20:09:04,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:04,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003074400] [2022-11-16 20:09:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:09:04,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:04,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003074400] [2022-11-16 20:09:04,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003074400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:04,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:04,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:09:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570720878] [2022-11-16 20:09:04,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:04,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:09:04,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:04,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:09:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:09:04,556 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:09:08,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 20:09:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:09,042 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2022-11-16 20:09:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:09:09,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 20:09:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:09,045 INFO L225 Difference]: With dead ends: 425 [2022-11-16 20:09:09,045 INFO L226 Difference]: Without dead ends: 276 [2022-11-16 20:09:09,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:09:09,047 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 27 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:09,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 766 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-16 20:09:09,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-16 20:09:09,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2022-11-16 20:09:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 20:09:09,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2022-11-16 20:09:09,079 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2022-11-16 20:09:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:09,079 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2022-11-16 20:09:09,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:09:09,080 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2022-11-16 20:09:09,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-16 20:09:09,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:09,088 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:09:09,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:09:09,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:09,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1076919952, now seen corresponding path program 1 times [2022-11-16 20:09:09,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:09,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886074280] [2022-11-16 20:09:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:09,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:09,275 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:09:09,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [783345387] [2022-11-16 20:09:09,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:09,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:09,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:09:09,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:09:09,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:09:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:10,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:09:10,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:09:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:09:10,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:09:10,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:10,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886074280] [2022-11-16 20:09:10,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:09:10,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783345387] [2022-11-16 20:09:10,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783345387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:10,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:10,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:09:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42248059] [2022-11-16 20:09:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:10,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:09:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:09:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:09:10,343 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:09:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:12,143 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2022-11-16 20:09:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:09:12,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-11-16 20:09:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:12,145 INFO L225 Difference]: With dead ends: 614 [2022-11-16 20:09:12,146 INFO L226 Difference]: Without dead ends: 366 [2022-11-16 20:09:12,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:09:12,148 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 119 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:12,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 547 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 20:09:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-16 20:09:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2022-11-16 20:09:12,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-16 20:09:12,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2022-11-16 20:09:12,172 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2022-11-16 20:09:12,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:12,173 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2022-11-16 20:09:12,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:09:12,173 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2022-11-16 20:09:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-16 20:09:12,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:12,175 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1] [2022-11-16 20:09:12,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:09:12,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:12,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash -887951383, now seen corresponding path program 1 times [2022-11-16 20:09:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:12,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994657463] [2022-11-16 20:09:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:12,484 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:09:12,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [54454549] [2022-11-16 20:09:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:12,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:09:12,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:09:12,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:09:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:13,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 20:09:13,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:09:13,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 20:09:13,324 INFO L350 Elim1Store]: Elim1 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 6 treesize of output 5 [2022-11-16 20:09:13,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:09:13,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-16 20:09:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:09:13,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:09:13,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:13,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994657463] [2022-11-16 20:09:13,370 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:09:13,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54454549] [2022-11-16 20:09:13,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54454549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:13,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:13,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:09:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986285210] [2022-11-16 20:09:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:09:13,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:09:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:09:13,373 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:09:16,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:16,177 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2022-11-16 20:09:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:09:16,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2022-11-16 20:09:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:16,180 INFO L225 Difference]: With dead ends: 674 [2022-11-16 20:09:16,180 INFO L226 Difference]: Without dead ends: 362 [2022-11-16 20:09:16,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:09:16,181 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 13 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:16,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 766 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 20:09:16,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-16 20:09:16,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-11-16 20:09:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-16 20:09:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2022-11-16 20:09:16,203 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2022-11-16 20:09:16,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:16,204 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2022-11-16 20:09:16,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:09:16,204 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2022-11-16 20:09:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 20:09:16,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:16,206 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2022-11-16 20:09:16,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:09:16,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:16,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:16,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash -685995049, now seen corresponding path program 1 times [2022-11-16 20:09:16,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:16,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74480857] [2022-11-16 20:09:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:16,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:09:16,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266200404] [2022-11-16 20:09:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:16,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:16,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:09:16,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:09:16,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:09:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:17,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 2300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:09:17,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:09:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:09:17,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:09:17,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:17,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74480857] [2022-11-16 20:09:17,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:09:17,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266200404] [2022-11-16 20:09:17,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266200404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:17,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:17,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:09:17,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206784027] [2022-11-16 20:09:17,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:17,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:09:17,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:09:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:09:17,961 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:09:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:19,805 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2022-11-16 20:09:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:09:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2022-11-16 20:09:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:19,808 INFO L225 Difference]: With dead ends: 820 [2022-11-16 20:09:19,808 INFO L226 Difference]: Without dead ends: 484 [2022-11-16 20:09:19,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:09:19,811 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 110 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:19,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 20:09:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-11-16 20:09:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2022-11-16 20:09:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-16 20:09:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2022-11-16 20:09:19,848 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2022-11-16 20:09:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:19,850 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2022-11-16 20:09:19,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:09:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2022-11-16 20:09:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 20:09:19,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:19,856 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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, 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, 1, 1, 1, 1, 1] [2022-11-16 20:09:19,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:09:20,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:20,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:20,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:20,068 INFO L85 PathProgramCache]: Analyzing trace with hash -397116236, now seen corresponding path program 1 times [2022-11-16 20:09:20,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:20,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151036505] [2022-11-16 20:09:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:20,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:20,170 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:09:20,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122624462] [2022-11-16 20:09:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:20,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:20,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:09:20,177 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:09:20,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:09:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:21,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:09:21,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:09:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 20:09:21,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:09:21,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:21,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151036505] [2022-11-16 20:09:21,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:09:21,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122624462] [2022-11-16 20:09:21,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122624462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:21,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:21,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 20:09:21,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845751985] [2022-11-16 20:09:21,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:21,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:09:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:09:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:09:21,375 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 20:09:23,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:23,126 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2022-11-16 20:09:23,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:09:23,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2022-11-16 20:09:23,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:23,129 INFO L225 Difference]: With dead ends: 719 [2022-11-16 20:09:23,129 INFO L226 Difference]: Without dead ends: 351 [2022-11-16 20:09:23,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:09:23,131 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 438 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:23,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 329 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 20:09:23,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-16 20:09:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-11-16 20:09:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 20:09:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2022-11-16 20:09:23,153 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2022-11-16 20:09:23,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:23,154 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2022-11-16 20:09:23,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 20:09:23,155 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2022-11-16 20:09:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 20:09:23,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:23,156 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:09:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 20:09:23,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:23,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:23,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2128847042, now seen corresponding path program 1 times [2022-11-16 20:09:23,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:23,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467741778] [2022-11-16 20:09:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:23,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:23,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:09:23,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815565322] [2022-11-16 20:09:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:23,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:23,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:09:23,486 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:09:23,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 20:09:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:09:53,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:09:53,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:09:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 20:09:53,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:09:53,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:09:53,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467741778] [2022-11-16 20:09:53,925 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:09:53,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815565322] [2022-11-16 20:09:53,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815565322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:09:53,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:09:53,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 20:09:53,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979561310] [2022-11-16 20:09:53,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:09:53,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:09:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:09:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:09:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:09:53,928 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 20:09:56,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:09:56,716 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2022-11-16 20:09:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:09:56,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2022-11-16 20:09:56,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:09:56,718 INFO L225 Difference]: With dead ends: 684 [2022-11-16 20:09:56,719 INFO L226 Difference]: Without dead ends: 353 [2022-11-16 20:09:56,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:09:56,720 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 1 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:09:56,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 812 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 20:09:56,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-16 20:09:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2022-11-16 20:09:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2022-11-16 20:09:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2022-11-16 20:09:56,747 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2022-11-16 20:09:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:09:56,747 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2022-11-16 20:09:56,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 20:09:56,747 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2022-11-16 20:09:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-16 20:09:56,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:09:56,752 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:09:56,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 20:09:56,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:56,978 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:09:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:09:56,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1518494194, now seen corresponding path program 1 times [2022-11-16 20:09:56,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:09:56,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443352495] [2022-11-16 20:09:56,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:56,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:09:57,087 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:09:57,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138285446] [2022-11-16 20:09:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:09:57,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:09:57,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:09:57,089 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:09:57,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ed66b7-280c-4a52-942d-f8ba933f58f9/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 20:23:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:23:11,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 20:23:11,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:23:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 20:23:11,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:23:12,130 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 20:23:12,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:23:12,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443352495] [2022-11-16 20:23:12,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:23:12,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138285446] [2022-11-16 20:23:12,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138285446] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:23:12,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1580320536] [2022-11-16 20:23:12,156 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2022-11-16 20:23:12,156 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:23:12,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:23:12,166 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:23:12,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:23:12,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,462 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 20:23:12,463 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 20:23:12,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:23:12,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:23:12,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:23:12,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 20:23:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:23:12,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:23:12,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,605 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:23:12,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-16 20:23:12,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,656 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:23:12,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 20:23:12,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,713 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:23:12,713 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 20:23:13,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:23:13,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:23:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897016 treesize of output 5376291 [2022-11-16 20:23:13,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-11-16 20:23:13,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-16 20:23:13,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 9897022 treesize of output 5376303 [2022-11-16 20:23:13,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 9897022 treesize of output 5376303 [2022-11-16 20:23:13,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-16 20:23:13,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:23:13,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,745 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-16 20:23:13,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-16 20:23:13,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,830 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:23:13,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-16 20:23:13,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:23:13,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:13,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 9897022 treesize of output 5376303 [2022-11-16 20:23:14,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:23:14,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:23:14,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 20:23:14,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-16 20:23:14,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 20:23:14,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 20:23:14,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 20:23:14,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:23:14,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:23:14,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 20:23:14,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 20:23:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376221 [2022-11-16 20:23:14,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 20:23:14,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 20:23:14,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376221 [2022-11-16 20:23:15,863 INFO L217 Elim1Store]: Index analysis took 900 ms [2022-11-16 20:23:18,474 INFO L321 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2022-11-16 20:23:18,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 9519784 treesize of output 9519788 [2022-11-16 20:23:19,709 INFO L217 Elim1Store]: Index analysis took 1074 ms [2022-11-16 20:23:22,189 INFO L321 Elim1Store]: treesize reduction 206, result has 11.2 percent of original size [2022-11-16 20:23:22,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519789 treesize of output 9519792 [2022-11-16 20:23:28,934 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:23:28,935 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-16 20:23:28,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-16 20:23:48,203 WARN L233 SmtUtils]: Spent 19.10s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:23:48,204 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-16 20:23:48,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1819 [2022-11-16 20:23:48,919 INFO L217 Elim1Store]: Index analysis took 518 ms [2022-11-16 20:24:04,906 WARN L233 SmtUtils]: Spent 15.58s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:24:04,908 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-16 20:24:04,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-16 20:24:05,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:06,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:06,182 INFO L217 Elim1Store]: Index analysis took 303 ms [2022-11-16 20:24:06,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 87 [2022-11-16 20:24:06,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:06,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:06,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2022-11-16 20:24:06,393 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:24:07,166 INFO L217 Elim1Store]: Index analysis took 114 ms [2022-11-16 20:24:07,646 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 20:24:07,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-16 20:24:07,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 7 treesize of output 3 [2022-11-16 20:24:08,225 INFO L217 Elim1Store]: Index analysis took 252 ms [2022-11-16 20:24:09,041 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:24:09,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-16 20:24:09,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:09,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2022-11-16 20:24:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:09,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:09,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-16 20:24:09,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:09,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-16 20:24:11,170 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:24:12,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:12,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:12,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-16 20:24:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:12,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-16 20:24:14,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:14,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-16 20:24:16,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:16,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-16 20:24:16,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:16,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13