./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.08-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.08-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 461dc838a66b90dbc84e0c687808dbd6d568e1b4ffb694b9909dedb46b2980b4 --- 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-b5237d8 [2022-11-22 01:30:02,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:30:02,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:30:02,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:30:03,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:30:03,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:30:03,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:30:03,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:30:03,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:30:03,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:30:03,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:30:03,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:30:03,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:30:03,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:30:03,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:30:03,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:30:03,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:30:03,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:30:03,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:30:03,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:30:03,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:30:03,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:30:03,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:30:03,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:30:03,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:30:03,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:30:03,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:30:03,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:30:03,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:30:03,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:30:03,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:30:03,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:30:03,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:30:03,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:30:03,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:30:03,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:30:03,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:30:03,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:30:03,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:30:03,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:30:03,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:30:03,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:30:03,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:30:03,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:30:03,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:30:03,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:30:03,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:30:03,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:30:03,121 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:30:03,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:30:03,122 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:30:03,122 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:30:03,123 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:30:03,123 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:30:03,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:30:03,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:30:03,124 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:30:03,124 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:30:03,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:30:03,125 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:30:03,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:30:03,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:30:03,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:30:03,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:30:03,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:30:03,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:30:03,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:30:03,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:30:03,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:30:03,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:30:03,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:30:03,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:30:03,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:30:03,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:30:03,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:30:03,131 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:30:03,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:30:03,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:30:03,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:30:03,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:30:03,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:30:03,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:30:03,133 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_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 461dc838a66b90dbc84e0c687808dbd6d568e1b4ffb694b9909dedb46b2980b4 [2022-11-22 01:30:03,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:30:03,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:30:03,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:30:03,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:30:03,530 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:30:03,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-memory-alloca/c.08-alloca.i [2022-11-22 01:30:06,618 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:30:06,857 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:30:06,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/sv-benchmarks/c/termination-memory-alloca/c.08-alloca.i [2022-11-22 01:30:06,876 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/data/1f8bac506/219a77190d2d4afea16643a855712704/FLAG036a3a2b6 [2022-11-22 01:30:06,899 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/data/1f8bac506/219a77190d2d4afea16643a855712704 [2022-11-22 01:30:06,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:30:06,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:30:06,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:30:06,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:30:06,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:30:06,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:30:06" (1/1) ... [2022-11-22 01:30:06,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c58d875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:06, skipping insertion in model container [2022-11-22 01:30:06,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:30:06" (1/1) ... [2022-11-22 01:30:06,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:30:06,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:30:07,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:30:07,375 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:30:07,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:30:07,465 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:30:07,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07 WrapperNode [2022-11-22 01:30:07,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:30:07,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:30:07,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:30:07,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:30:07,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,504 INFO L138 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-11-22 01:30:07,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:30:07,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:30:07,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:30:07,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:30:07,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:30:07,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:30:07,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:30:07,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:30:07,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (1/1) ... [2022-11-22 01:30:07,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:30:07,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:07,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:30:07,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:30:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:30:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:30:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:30:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:30:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:30:07,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:30:07,730 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:30:07,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:30:07,997 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:30:08,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:30:08,026 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:30:08,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:08 BoogieIcfgContainer [2022-11-22 01:30:08,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:30:08,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:30:08,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:30:08,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:30:08,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:30:06" (1/3) ... [2022-11-22 01:30:08,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b3494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:08, skipping insertion in model container [2022-11-22 01:30:08,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:07" (2/3) ... [2022-11-22 01:30:08,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b3494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:08, skipping insertion in model container [2022-11-22 01:30:08,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:08" (3/3) ... [2022-11-22 01:30:08,047 INFO L112 eAbstractionObserver]: Analyzing ICFG c.08-alloca.i [2022-11-22 01:30:08,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:30:08,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 01:30:08,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:30:08,137 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;@90a65e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:30:08,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 01:30:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:30:08,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:08,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:30:08,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:08,152 INFO L85 PathProgramCache]: Analyzing trace with hash 75025815, now seen corresponding path program 1 times [2022-11-22 01:30:08,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:08,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211359405] [2022-11-22 01:30:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:08,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:08,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211359405] [2022-11-22 01:30:08,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211359405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:08,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:08,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:30:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602216783] [2022-11-22 01:30:08,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:08,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:30:08,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:08,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:30:08,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:30:08,971 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:09,085 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2022-11-22 01:30:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:30:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:30:09,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:09,101 INFO L225 Difference]: With dead ends: 57 [2022-11-22 01:30:09,101 INFO L226 Difference]: Without dead ends: 34 [2022-11-22 01:30:09,103 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 [2022-11-22 01:30:09,108 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:09,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:30:09,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-22 01:30:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2022-11-22 01:30:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-22 01:30:09,157 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2022-11-22 01:30:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:09,158 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-22 01:30:09,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-22 01:30:09,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:30:09,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:09,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:30:09,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:30:09,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:09,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:09,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1969166980, now seen corresponding path program 1 times [2022-11-22 01:30:09,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:09,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499102338] [2022-11-22 01:30:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:09,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:09,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:09,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499102338] [2022-11-22 01:30:09,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499102338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:09,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:09,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:30:09,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583915610] [2022-11-22 01:30:09,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:09,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:30:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:09,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:30:09,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:30:09,595 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:09,641 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-11-22 01:30:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:30:09,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:30:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:09,643 INFO L225 Difference]: With dead ends: 26 [2022-11-22 01:30:09,643 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 01:30:09,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:09,645 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:09,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:09,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 01:30:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-22 01:30:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.45) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-11-22 01:30:09,650 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2022-11-22 01:30:09,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:09,651 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-11-22 01:30:09,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-22 01:30:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:30:09,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:09,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:09,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:30:09,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1711111550, now seen corresponding path program 1 times [2022-11-22 01:30:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:09,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278017265] [2022-11-22 01:30:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:09,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:09,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:09,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278017265] [2022-11-22 01:30:09,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278017265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:09,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:09,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:30:09,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806309396] [2022-11-22 01:30:09,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:09,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:30:09,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:09,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:30:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:30:09,751 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:09,817 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-11-22 01:30:09,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:30:09,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:30:09,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:09,820 INFO L225 Difference]: With dead ends: 45 [2022-11-22 01:30:09,820 INFO L226 Difference]: Without dead ends: 43 [2022-11-22 01:30:09,820 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 [2022-11-22 01:30:09,821 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:09,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 30 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:09,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-22 01:30:09,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2022-11-22 01:30:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.375) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2022-11-22 01:30:09,828 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 8 [2022-11-22 01:30:09,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:09,829 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2022-11-22 01:30:09,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,829 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2022-11-22 01:30:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:30:09,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:09,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:09,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:30:09,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:09,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1504848828, now seen corresponding path program 1 times [2022-11-22 01:30:09,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:09,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358366158] [2022-11-22 01:30:09,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:09,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:09,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:09,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:09,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358366158] [2022-11-22 01:30:09,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358366158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:09,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:09,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:30:09,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693442394] [2022-11-22 01:30:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:09,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:30:09,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:09,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:30:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:30:09,900 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:09,968 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-22 01:30:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:30:09,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:30:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:09,970 INFO L225 Difference]: With dead ends: 38 [2022-11-22 01:30:09,971 INFO L226 Difference]: Without dead ends: 36 [2022-11-22 01:30:09,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:09,972 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:09,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 9 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:30:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-22 01:30:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-22 01:30:09,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.3125) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2022-11-22 01:30:09,980 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 9 [2022-11-22 01:30:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:09,980 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2022-11-22 01:30:09,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-11-22 01:30:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:30:09,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:09,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:09,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:30:09,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash -594326520, now seen corresponding path program 1 times [2022-11-22 01:30:09,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:09,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197623495] [2022-11-22 01:30:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:10,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:10,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197623495] [2022-11-22 01:30:10,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197623495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:10,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:10,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:30:10,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912760247] [2022-11-22 01:30:10,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:10,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:30:10,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:10,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:30:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:30:10,060 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:10,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:10,107 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-11-22 01:30:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:30:10,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 01:30:10,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:10,109 INFO L225 Difference]: With dead ends: 36 [2022-11-22 01:30:10,109 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 01:30:10,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:10,110 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:10,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 01:30:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-22 01:30:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-11-22 01:30:10,117 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 10 [2022-11-22 01:30:10,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:10,117 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-11-22 01:30:10,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:10,118 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-11-22 01:30:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:30:10,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:10,118 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:10,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:30:10,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash 294455701, now seen corresponding path program 1 times [2022-11-22 01:30:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:10,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316671357] [2022-11-22 01:30:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:10,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:10,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:10,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316671357] [2022-11-22 01:30:10,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316671357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:10,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900792377] [2022-11-22 01:30:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:10,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:10,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:10,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:10,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:30:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:10,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:30:10,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:10,505 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 [2022-11-22 01:30:10,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:10,595 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 [2022-11-22 01:30:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:10,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:10,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900792377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232444849] [2022-11-22 01:30:10,702 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:30:10,702 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:10,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:10,710 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:10,711 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:10,829 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:30:10,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:30:10,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-11-22 01:30:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:10,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:10,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:10,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2022-11-22 01:30:10,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:10,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:10,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 34 [2022-11-22 01:30:11,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:11,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:11,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 44 [2022-11-22 01:30:11,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:11,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:11,871 INFO L321 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2022-11-22 01:30:11,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 377 treesize of output 315 [2022-11-22 01:30:12,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:12,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:12,223 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:30:13,925 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '568#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:13,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:13,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:30:13,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-22 01:30:13,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595331529] [2022-11-22 01:30:13,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:13,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:30:13,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:13,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:30:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:30:13,928 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:14,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:14,190 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2022-11-22 01:30:14,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:30:14,191 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 01:30:14,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:14,194 INFO L225 Difference]: With dead ends: 90 [2022-11-22 01:30:14,194 INFO L226 Difference]: Without dead ends: 89 [2022-11-22 01:30:14,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:30:14,199 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 44 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:14,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 50 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:30:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-22 01:30:14,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 69. [2022-11-22 01:30:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.3333333333333333) internal successors, (88), 68 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-11-22 01:30:14,209 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 14 [2022-11-22 01:30:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:14,209 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-22 01:30:14,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:14,213 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-11-22 01:30:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:30:14,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:14,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:30:14,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:30:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:14,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 538192199, now seen corresponding path program 1 times [2022-11-22 01:30:14,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:14,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137500473] [2022-11-22 01:30:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:14,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:14,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:14,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137500473] [2022-11-22 01:30:14,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137500473] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:14,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179833441] [2022-11-22 01:30:14,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:14,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:14,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:14,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:14,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:30:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:14,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:30:14,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:14,719 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 [2022-11-22 01:30:14,745 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 17 treesize of output 9 [2022-11-22 01:30:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:14,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:14,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179833441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:14,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:30:14,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-11-22 01:30:14,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941127919] [2022-11-22 01:30:14,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:14,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:30:14,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:14,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:30:14,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:30:14,764 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:14,795 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2022-11-22 01:30:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:30:14,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:30:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:14,796 INFO L225 Difference]: With dead ends: 69 [2022-11-22 01:30:14,796 INFO L226 Difference]: Without dead ends: 68 [2022-11-22 01:30:14,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:30:14,798 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:14,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-22 01:30:14,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-22 01:30:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 67 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2022-11-22 01:30:14,823 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 15 [2022-11-22 01:30:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:14,824 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-11-22 01:30:14,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2022-11-22 01:30:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:30:14,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:14,825 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:14,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:15,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:30:15,034 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:15,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash 998348440, now seen corresponding path program 1 times [2022-11-22 01:30:15,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:15,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145955133] [2022-11-22 01:30:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:15,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:30:15,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:15,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145955133] [2022-11-22 01:30:15,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145955133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:15,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:15,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:30:15,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601668884] [2022-11-22 01:30:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:15,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:30:15,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:30:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:30:15,196 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:15,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:15,284 INFO L93 Difference]: Finished difference Result 109 states and 131 transitions. [2022-11-22 01:30:15,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:30:15,285 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-22 01:30:15,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:15,286 INFO L225 Difference]: With dead ends: 109 [2022-11-22 01:30:15,286 INFO L226 Difference]: Without dead ends: 68 [2022-11-22 01:30:15,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:30:15,288 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:15,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:30:15,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-22 01:30:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-22 01:30:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 67 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2022-11-22 01:30:15,308 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 20 [2022-11-22 01:30:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:15,308 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2022-11-22 01:30:15,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-11-22 01:30:15,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:30:15,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:15,310 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:15,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:30:15,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash 501528623, now seen corresponding path program 2 times [2022-11-22 01:30:15,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:15,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136305520] [2022-11-22 01:30:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:15,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:15,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:15,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136305520] [2022-11-22 01:30:15,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136305520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:15,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403077305] [2022-11-22 01:30:15,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:30:15,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:15,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:15,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:15,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:30:15,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 01:30:15,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:30:15,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-22 01:30:15,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:15,907 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 10 treesize of output 8 [2022-11-22 01:30:15,986 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 14 treesize of output 16 [2022-11-22 01:30:16,000 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 [2022-11-22 01:30:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:30:16,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:16,103 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 7 treesize of output 3 [2022-11-22 01:30:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:30:16,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403077305] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:16,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1635535686] [2022-11-22 01:30:16,132 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-22 01:30:16,132 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:16,132 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:16,132 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:16,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:16,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:16,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:16,189 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-22 01:30:16,190 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 2 case distinctions, treesize of input 59 treesize of output 33 [2022-11-22 01:30:16,229 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-22 01:30:16,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2022-11-22 01:30:16,299 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:30:16,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:30:16,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:16,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:16,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 45 [2022-11-22 01:30:16,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:16,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:16,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 73 treesize of output 51 [2022-11-22 01:30:16,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:16,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:16,688 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 [2022-11-22 01:30:16,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:16,757 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:30:16,758 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 2 case distinctions, treesize of input 54 treesize of output 37 [2022-11-22 01:30:16,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:16,947 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:30:16,948 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 2 case distinctions, treesize of input 141 treesize of output 96 [2022-11-22 01:30:17,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:17,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:17,115 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 [2022-11-22 01:30:17,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:17,203 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:30:17,204 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 2 case distinctions, treesize of input 54 treesize of output 37 [2022-11-22 01:30:17,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:17,396 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 01:30:17,400 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 2 case distinctions, treesize of input 143 treesize of output 98 [2022-11-22 01:30:17,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:17,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:17,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:17,620 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:30:18,927 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1380#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (not (<= |ULTIMATE.start_test_fun_#t~mem6#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:18,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:18,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:30:18,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 16 [2022-11-22 01:30:18,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289603619] [2022-11-22 01:30:18,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:18,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 01:30:18,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:18,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 01:30:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-11-22 01:30:18,931 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:19,317 INFO L93 Difference]: Finished difference Result 112 states and 132 transitions. [2022-11-22 01:30:19,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:30:19,318 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-22 01:30:19,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:19,319 INFO L225 Difference]: With dead ends: 112 [2022-11-22 01:30:19,319 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 01:30:19,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=225, Invalid=1107, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 01:30:19,320 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 74 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:19,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 13 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:30:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 01:30:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 36. [2022-11-22 01:30:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-11-22 01:30:19,325 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 26 [2022-11-22 01:30:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:19,325 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-22 01:30:19,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-11-22 01:30:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 01:30:19,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:19,327 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-22 01:30:19,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 01:30:19,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 01:30:19,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:19,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:19,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1323916890, now seen corresponding path program 2 times [2022-11-22 01:30:19,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:19,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442609318] [2022-11-22 01:30:19,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:19,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:19,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:19,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442609318] [2022-11-22 01:30:19,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442609318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:19,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189140689] [2022-11-22 01:30:19,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:30:19,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:19,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:19,950 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:19,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:30:20,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 01:30:20,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:30:20,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:30:20,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:20,079 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 [2022-11-22 01:30:20,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:20,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:20,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:20,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:20,239 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 [2022-11-22 01:30:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:20,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:20,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189140689] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:20,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1365214733] [2022-11-22 01:30:20,432 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:30:20,432 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:20,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:20,432 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:20,432 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:20,488 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:30:20,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:30:20,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-11-22 01:30:20,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2022-11-22 01:30:20,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 34 [2022-11-22 01:30:20,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:20,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 44 [2022-11-22 01:30:21,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:21,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:21,053 INFO L321 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2022-11-22 01:30:21,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 365 treesize of output 307 [2022-11-22 01:30:21,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:21,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:21,299 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:30:22,907 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1801#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:22,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:22,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:30:22,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 29 [2022-11-22 01:30:22,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667309666] [2022-11-22 01:30:22,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:22,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-22 01:30:22,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:22,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-22 01:30:22,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1191, Unknown=0, NotChecked=0, Total=1482 [2022-11-22 01:30:22,910 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 30 states, 29 states have (on average 3.0) internal successors, (87), 30 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:23,213 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2022-11-22 01:30:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-22 01:30:23,218 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.0) internal successors, (87), 30 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 01:30:23,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:23,220 INFO L225 Difference]: With dead ends: 98 [2022-11-22 01:30:23,220 INFO L226 Difference]: Without dead ends: 97 [2022-11-22 01:30:23,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=434, Invalid=1728, Unknown=0, NotChecked=0, Total=2162 [2022-11-22 01:30:23,222 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 100 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:23,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 67 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:30:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-22 01:30:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 72. [2022-11-22 01:30:23,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 71 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2022-11-22 01:30:23,229 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 32 [2022-11-22 01:30:23,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:23,229 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2022-11-22 01:30:23,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.0) internal successors, (87), 30 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2022-11-22 01:30:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:30:23,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:23,231 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-22 01:30:23,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:23,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:23,442 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1973550556, now seen corresponding path program 3 times [2022-11-22 01:30:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:23,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956073761] [2022-11-22 01:30:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:23,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:25,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:25,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956073761] [2022-11-22 01:30:25,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956073761] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:25,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176642709] [2022-11-22 01:30:25,026 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:30:25,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:25,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:25,030 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:25,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:30:25,159 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:30:25,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:30:25,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-22 01:30:25,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:25,173 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 [2022-11-22 01:30:25,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:25,684 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 [2022-11-22 01:30:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:25,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:26,357 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:26,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176642709] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:26,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1671395965] [2022-11-22 01:30:26,359 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:30:26,359 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:26,359 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:26,360 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:26,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:26,409 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-22 01:30:26,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2022-11-22 01:30:26,453 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:30:26,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:30:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2022-11-22 01:30:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 34 [2022-11-22 01:30:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:26,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 44 [2022-11-22 01:30:26,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:26,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:27,010 INFO L321 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2022-11-22 01:30:27,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 377 treesize of output 315 [2022-11-22 01:30:27,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:27,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:27,238 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:30:28,973 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2488#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:28,973 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:28,973 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:30:28,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 23, 23] total 65 [2022-11-22 01:30:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865735272] [2022-11-22 01:30:28,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:28,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-22 01:30:28,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:28,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-22 01:30:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=4326, Unknown=0, NotChecked=0, Total=5550 [2022-11-22 01:30:28,978 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 66 states, 65 states have (on average 3.0153846153846153) internal successors, (196), 66 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:29,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:29,740 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2022-11-22 01:30:29,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-22 01:30:29,741 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 3.0153846153846153) internal successors, (196), 66 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-22 01:30:29,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:29,742 INFO L225 Difference]: With dead ends: 206 [2022-11-22 01:30:29,742 INFO L226 Difference]: Without dead ends: 205 [2022-11-22 01:30:29,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3704 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1724, Invalid=6286, Unknown=0, NotChecked=0, Total=8010 [2022-11-22 01:30:29,746 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 370 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:29,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 120 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:30:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-22 01:30:29,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 144. [2022-11-22 01:30:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.1538461538461537) internal successors, (165), 143 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:29,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 165 transitions. [2022-11-22 01:30:29,769 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 165 transitions. Word has length 68 [2022-11-22 01:30:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:29,771 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 165 transitions. [2022-11-22 01:30:29,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 3.0153846153846153) internal successors, (196), 66 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 165 transitions. [2022-11-22 01:30:29,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-22 01:30:29,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:29,781 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-22 01:30:29,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:29,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:29,987 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:29,987 INFO L85 PathProgramCache]: Analyzing trace with hash 81261240, now seen corresponding path program 4 times [2022-11-22 01:30:29,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:29,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599285242] [2022-11-22 01:30:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:29,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:35,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599285242] [2022-11-22 01:30:35,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599285242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633513576] [2022-11-22 01:30:35,411 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:30:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:35,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:35,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:30:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:35,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-22 01:30:35,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:35,621 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 [2022-11-22 01:30:35,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:35,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:35,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:35,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:35,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:35,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:35,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:30:36,831 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 [2022-11-22 01:30:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:36,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:30:38,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633513576] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:38,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1705057470] [2022-11-22 01:30:38,991 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:30:38,991 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:38,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:38,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:38,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:39,041 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:30:39,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:30:39,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-11-22 01:30:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2022-11-22 01:30:39,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 34 [2022-11-22 01:30:39,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:30:39,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 68 treesize of output 46 [2022-11-22 01:30:39,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:39,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:30:39,664 INFO L321 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2022-11-22 01:30:39,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 376 treesize of output 314 [2022-11-22 01:30:39,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:39,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:30:39,911 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:30:41,940 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3896#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 |ULTIMATE.start_main_#t~nondet11#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i#1|) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_#in~i#1|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:41,940 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:41,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:30:41,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 47, 47] total 136 [2022-11-22 01:30:41,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797113949] [2022-11-22 01:30:41,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:41,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2022-11-22 01:30:41,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:41,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2022-11-22 01:30:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5090, Invalid=16080, Unknown=0, NotChecked=0, Total=21170 [2022-11-22 01:30:41,949 INFO L87 Difference]: Start difference. First operand 144 states and 165 transitions. Second operand has 137 states, 136 states have (on average 3.0073529411764706) internal successors, (409), 137 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:44,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:44,039 INFO L93 Difference]: Finished difference Result 422 states and 490 transitions. [2022-11-22 01:30:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-11-22 01:30:44,040 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 3.0073529411764706) internal successors, (409), 137 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-11-22 01:30:44,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:44,043 INFO L225 Difference]: With dead ends: 422 [2022-11-22 01:30:44,043 INFO L226 Difference]: Without dead ends: 421 [2022-11-22 01:30:44,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14536 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=6868, Invalid=23234, Unknown=0, NotChecked=0, Total=30102 [2022-11-22 01:30:44,049 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 837 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:44,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 215 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:30:44,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-22 01:30:44,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 288. [2022-11-22 01:30:44,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.1602787456445993) internal successors, (333), 287 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 333 transitions. [2022-11-22 01:30:44,064 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 333 transitions. Word has length 140 [2022-11-22 01:30:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:44,065 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 333 transitions. [2022-11-22 01:30:44,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 3.0073529411764706) internal successors, (409), 137 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:30:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 333 transitions. [2022-11-22 01:30:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-22 01:30:44,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:44,070 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2022-11-22 01:30:44,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:44,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:30:44,277 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:30:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:44,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1300989984, now seen corresponding path program 5 times [2022-11-22 01:30:44,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:44,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389986173] [2022-11-22 01:30:44,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:44,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:00,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:00,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389986173] [2022-11-22 01:31:00,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389986173] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:31:00,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511622704] [2022-11-22 01:31:00,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:31:00,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:00,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:00,058 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:00,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:31:16,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2022-11-22 01:31:16,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:31:16,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 189 conjunts are in the unsatisfiable core [2022-11-22 01:31:16,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:16,389 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 [2022-11-22 01:31:16,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:16,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:17,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:18,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:19,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:20,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:31:20,097 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 [2022-11-22 01:31:20,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:20,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:31:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:28,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511622704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:31:28,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1627540965] [2022-11-22 01:31:28,532 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:31:28,532 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:31:28,532 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:31:28,533 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:31:28,533 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:31:28,577 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-22 01:31:28,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2022-11-22 01:31:28,617 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:31:28,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:31:28,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2022-11-22 01:31:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 34 [2022-11-22 01:31:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:28,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 44 [2022-11-22 01:31:29,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:29,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:29,097 INFO L321 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2022-11-22 01:31:29,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 377 treesize of output 315 [2022-11-22 01:31:29,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:31:29,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:31:29,303 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:31:32,078 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6746#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:31:32,078 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:31:32,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:31:32,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [139, 95, 95] total 280 [2022-11-22 01:31:32,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378004366] [2022-11-22 01:31:32,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:31:32,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 281 states [2022-11-22 01:31:32,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 281 interpolants. [2022-11-22 01:31:32,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21066, Invalid=62744, Unknown=0, NotChecked=0, Total=83810 [2022-11-22 01:31:32,095 INFO L87 Difference]: Start difference. First operand 288 states and 333 transitions. Second operand has 281 states, 280 states have (on average 3.0035714285714286) internal successors, (841), 281 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:39,938 INFO L93 Difference]: Finished difference Result 854 states and 994 transitions. [2022-11-22 01:31:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-11-22 01:31:39,939 INFO L78 Accepts]: Start accepts. Automaton has has 281 states, 280 states have (on average 3.0035714285714286) internal successors, (841), 281 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 284 [2022-11-22 01:31:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:39,942 INFO L225 Difference]: With dead ends: 854 [2022-11-22 01:31:39,942 INFO L226 Difference]: Without dead ends: 853 [2022-11-22 01:31:39,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1041 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57862 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=27536, Invalid=89086, Unknown=0, NotChecked=0, Total=116622 [2022-11-22 01:31:39,952 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2057 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:39,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 419 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:31:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-11-22 01:31:39,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 576. [2022-11-22 01:31:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.1634782608695653) internal successors, (669), 575 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 669 transitions. [2022-11-22 01:31:39,978 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 669 transitions. Word has length 284 [2022-11-22 01:31:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:39,979 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 669 transitions. [2022-11-22 01:31:39,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 281 states, 280 states have (on average 3.0035714285714286) internal successors, (841), 281 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 669 transitions. [2022-11-22 01:31:39,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2022-11-22 01:31:39,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:39,993 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2022-11-22 01:31:40,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:40,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:40,205 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:31:40,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash 427823664, now seen corresponding path program 6 times [2022-11-22 01:31:40,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:40,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849810278] [2022-11-22 01:31:40,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:40,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:32:43,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:43,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849810278] [2022-11-22 01:32:43,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849810278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:32:43,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218669853] [2022-11-22 01:32:43,027 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:32:43,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:43,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:43,033 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:43,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:32:43,465 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:32:43,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:32:43,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 381 conjunts are in the unsatisfiable core [2022-11-22 01:32:43,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:43,512 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 [2022-11-22 01:32:43,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:43,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:43,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:43,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:44,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:45,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:46,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:47,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:48,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:49,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:50,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:51,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:52,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:52,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:52,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:52,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:52,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:52,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:53,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:54,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:54,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:54,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:54,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:54,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:54,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:55,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:55,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:55,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:32:55,479 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 [2022-11-22 01:32:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:32:55,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:33:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:33:27,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218669853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:33:27,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773200922] [2022-11-22 01:33:27,859 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:33:27,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:33:27,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:33:27,860 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:33:27,860 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:33:27,881 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:33:27,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:33:27,910 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-22 01:33:27,910 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 2 case distinctions, treesize of input 59 treesize of output 33 [2022-11-22 01:33:27,960 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:33:27,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:33:27,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-11-22 01:33:28,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:28,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:28,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:28,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 45 [2022-11-22 01:33:28,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:28,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:28,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:33:28,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 73 treesize of output 51 [2022-11-22 01:33:28,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:33:28,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:33:28,257 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:33:31,529 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12475#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:33:31,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:33:31,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:33:31,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [282, 191, 191] total 567 [2022-11-22 01:33:31,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620453701] [2022-11-22 01:33:31,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:33:31,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 568 states [2022-11-22 01:33:31,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:31,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 568 interpolants. [2022-11-22 01:33:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85638, Invalid=245562, Unknown=0, NotChecked=0, Total=331200 [2022-11-22 01:33:31,560 INFO L87 Difference]: Start difference. First operand 576 states and 669 transitions. Second operand has 568 states, 567 states have (on average 3.001763668430335) internal successors, (1702), 568 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:11,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:11,953 INFO L93 Difference]: Finished difference Result 1718 states and 2002 transitions. [2022-11-22 01:34:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 478 states. [2022-11-22 01:34:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 568 states, 567 states have (on average 3.001763668430335) internal successors, (1702), 568 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 572 [2022-11-22 01:34:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:11,961 INFO L225 Difference]: With dead ends: 1718 [2022-11-22 01:34:11,961 INFO L226 Difference]: Without dead ends: 1717 [2022-11-22 01:34:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2097 GetRequests, 1422 SyntacticMatches, 0 SemanticMatches, 675 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229440 ImplicationChecksByTransitivity, 80.4s TimeCoverageRelationStatistics Valid=110331, Invalid=347321, Unknown=0, NotChecked=0, Total=457652 [2022-11-22 01:34:11,989 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4937 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:11,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4937 Valid, 818 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 01:34:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-11-22 01:34:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1152. [2022-11-22 01:34:12,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 1.1650738488271069) internal successors, (1341), 1151 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:12,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1341 transitions. [2022-11-22 01:34:12,037 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1341 transitions. Word has length 572 [2022-11-22 01:34:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:12,038 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1341 transitions. [2022-11-22 01:34:12,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 568 states, 567 states have (on average 3.001763668430335) internal successors, (1702), 568 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:12,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1341 transitions. [2022-11-22 01:34:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2022-11-22 01:34:12,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:12,090 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 1, 1, 1, 1] [2022-11-22 01:34:12,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-22 01:34:12,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:34:12,298 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:34:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1067350320, now seen corresponding path program 7 times [2022-11-22 01:34:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:12,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095272225] [2022-11-22 01:34:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:55,489 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:39:55,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:55,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095272225] [2022-11-22 01:39:55,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095272225] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:39:55,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062258731] [2022-11-22 01:39:55,490 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:39:55,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:39:55,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:39:55,497 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:39:55,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c50d5f-6d8f-4ac2-9fda-3037aca504c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:39:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:56,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 2960 conjuncts, 765 conjunts are in the unsatisfiable core [2022-11-22 01:39:56,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:39:56,363 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 [2022-11-22 01:39:56,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:56,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:56,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:57,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:58,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:59,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:59,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:59,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:59,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:59,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:39:59,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:00,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:00,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:00,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:00,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:00,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:00,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:01,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:01,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:01,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:01,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:01,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:01,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:02,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:02,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:02,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:02,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:02,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:02,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:03,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:03,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:03,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:03,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:03,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:03,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:04,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:04,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:04,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:04,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:04,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:05,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:05,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:05,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:05,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:05,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:05,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:06,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:06,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:06,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:06,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:06,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:07,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:07,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:07,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:07,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:07,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:08,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:08,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:08,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:08,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:09,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:09,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:09,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:09,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:09,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:10,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:10,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:10,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:10,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:10,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:11,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:11,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:11,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:11,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:11,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:12,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:12,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:12,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:12,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:13,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:13,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:13,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:13,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:13,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:14,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:14,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:14,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:14,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:15,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:15,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:15,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:15,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:16,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:16,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:16,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:16,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:16,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:17,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:17,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:17,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:17,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:18,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:18,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:18,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:18,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:19,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:19,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:19,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:19,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:20,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:20,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:20,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:20,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:21,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:21,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:21,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:21,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:22,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:22,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:22,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:23,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:23,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:23,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:23,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:24,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:24,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:24,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:24,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:25,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:25,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:25,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:25,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:26,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:26,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:26,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:27,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:27,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:27,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:28,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:28,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:28,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:28,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:29,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:29,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:29,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:30,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:30,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:30,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:30,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:31,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:31,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:31,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:32,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:32,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:32,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:33,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:33,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:33,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:33,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:34,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:34,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:34,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:35,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:35,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:35,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:36,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:36,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:36,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:37,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:37,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:37,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:37,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:38,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:38,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:38,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:39,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:39,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:39,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:40:39,880 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 [2022-11-22 01:40:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:39,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:50,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062258731] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [982144887] [2022-11-22 01:42:50,623 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 01:42:50,624 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:42:50,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:42:50,624 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:42:50,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:42:50,669 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-22 01:42:50,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-22 01:42:50,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-11-22 01:42:50,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2022-11-22 01:42:50,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 34 [2022-11-22 01:42:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:50,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 44 [2022-11-22 01:42:51,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:42:51,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:42:51,075 INFO L321 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2022-11-22 01:42:51,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 365 treesize of output 307 [2022-11-22 01:42:51,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:42:51,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-22 01:42:51,258 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:42:58,345 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23965#(and (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem8#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~j_ref~0#1.base|) |ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (not (<= |ULTIMATE.start_test_fun_#t~mem8#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= |ULTIMATE.start_main_#t~nondet12#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet12#1|)) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:42:58,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:42:58,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:42:58,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [570, 383, 383] total 1143 [2022-11-22 01:42:58,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837934978] [2022-11-22 01:42:58,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:42:58,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1144 states [2022-11-22 01:42:58,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1144 interpolants. [2022-11-22 01:42:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346235, Invalid=982021, Unknown=0, NotChecked=0, Total=1328256 [2022-11-22 01:42:58,484 INFO L87 Difference]: Start difference. First operand 1152 states and 1341 transitions. Second operand has 1144 states, 1143 states have (on average 3.00087489063867) internal successors, (3430), 1144 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)