./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0db5597ff96f0e5a728327333d32dd7df56f4b1fb643f99ebf0f69cacecd717 --- 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-5e519f3 [2022-11-03 02:47:55,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:47:55,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:47:55,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:47:55,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:47:55,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:47:55,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:47:55,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:47:55,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:47:55,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:47:55,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:47:55,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:47:55,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:47:55,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:47:55,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:47:55,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:47:55,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:47:55,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:47:55,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:47:55,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:47:55,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:47:55,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:47:55,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:47:55,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:47:55,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:47:55,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:47:55,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:47:55,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:47:55,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:47:55,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:47:55,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:47:55,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:47:55,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:47:55,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:47:55,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:47:55,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:47:55,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:47:55,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:47:55,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:47:55,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:47:55,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:47:55,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:47:55,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:47:55,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:47:55,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:47:55,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:47:55,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:47:55,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:47:55,647 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:47:55,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:47:55,647 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:47:55,647 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:47:55,648 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:47:55,649 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:47:55,649 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:47:55,649 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:47:55,649 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:47:55,650 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:47:55,650 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:47:55,650 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:47:55,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:47:55,651 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:47:55,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:47:55,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:47:55,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:47:55,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:47:55,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:47:55,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:47:55,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:47:55,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:47:55,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:47:55,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:47:55,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:47:55,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:47:55,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:55,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:47:55,655 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:47:55,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:47:55,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:47:55,655 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:47:55,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:47:55,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:47:55,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:47:55,656 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_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0db5597ff96f0e5a728327333d32dd7df56f4b1fb643f99ebf0f69cacecd717 [2022-11-03 02:47:55,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:47:55,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:47:55,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:47:55,998 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:47:55,999 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:47:56,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-fpi/ifeqn4.c [2022-11-03 02:47:56,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/data/aea818d4a/9e9a31e3f7ab41c38a0e65592623910a/FLAGc3f5b00cc [2022-11-03 02:47:56,549 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:47:56,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/sv-benchmarks/c/array-fpi/ifeqn4.c [2022-11-03 02:47:56,556 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/data/aea818d4a/9e9a31e3f7ab41c38a0e65592623910a/FLAGc3f5b00cc [2022-11-03 02:47:56,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/data/aea818d4a/9e9a31e3f7ab41c38a0e65592623910a [2022-11-03 02:47:56,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:47:56,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:47:56,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:56,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:47:56,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:47:56,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2587c986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56, skipping insertion in model container [2022-11-03 02:47:56,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:47:56,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:47:56,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/sv-benchmarks/c/array-fpi/ifeqn4.c[589,602] [2022-11-03 02:47:56,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:56,810 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:47:56,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/sv-benchmarks/c/array-fpi/ifeqn4.c[589,602] [2022-11-03 02:47:56,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:56,843 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:47:56,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56 WrapperNode [2022-11-03 02:47:56,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:56,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:56,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:47:56,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:47:56,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,904 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-11-03 02:47:56,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:56,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:47:56,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:47:56,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:47:56,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:47:56,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:47:56,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:47:56,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:47:56,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (1/1) ... [2022-11-03 02:47:56,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:56,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:47:57,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:47:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:47:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:47:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:47:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:47:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:47:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:47:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:47:57,121 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:47:57,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:47:57,331 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:47:57,386 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:47:57,386 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:47:57,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:57 BoogieIcfgContainer [2022-11-03 02:47:57,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:47:57,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:47:57,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:47:57,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:47:57,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:47:56" (1/3) ... [2022-11-03 02:47:57,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d595e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:57, skipping insertion in model container [2022-11-03 02:47:57,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:56" (2/3) ... [2022-11-03 02:47:57,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d595e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:57, skipping insertion in model container [2022-11-03 02:47:57,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:57" (3/3) ... [2022-11-03 02:47:57,398 INFO L112 eAbstractionObserver]: Analyzing ICFG ifeqn4.c [2022-11-03 02:47:57,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:47:57,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:47:57,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:47:57,467 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;@6cddb227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:47:57,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:47:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2022-11-03 02:47:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:47:57,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:57,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:57,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:57,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1095923036, now seen corresponding path program 1 times [2022-11-03 02:47:57,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:57,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712706036] [2022-11-03 02:47:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:57,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:57,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:57,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712706036] [2022-11-03 02:47:57,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:47:57,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042796535] [2022-11-03 02:47:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:57,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:57,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:57,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:57,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:47:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:57,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:47:57,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:57,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:57,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:57,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042796535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:57,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:57,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:57,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931963776] [2022-11-03 02:47:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:57,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:57,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:58,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:58,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:58,004 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-03 02:47:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:58,100 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-03 02:47:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:58,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-03 02:47:58,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:58,116 INFO L225 Difference]: With dead ends: 20 [2022-11-03 02:47:58,124 INFO L226 Difference]: Without dead ends: 10 [2022-11-03 02:47:58,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:58,130 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:58,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:58,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-03 02:47:58,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-03 02:47:58,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:47:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-03 02:47:58,170 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2022-11-03 02:47:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:58,171 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-03 02:47:58,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-03 02:47:58,172 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-03 02:47:58,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:47:58,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:58,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:58,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:58,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 02:47:58,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:58,403 INFO L85 PathProgramCache]: Analyzing trace with hash 255696374, now seen corresponding path program 1 times [2022-11-03 02:47:58,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:58,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360243206] [2022-11-03 02:47:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:58,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:58,449 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:47:58,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353576514] [2022-11-03 02:47:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:58,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:58,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:58,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:58,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:47:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:58,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:47:58,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:47:58,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:58,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:58,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360243206] [2022-11-03 02:47:58,559 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:47:58,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353576514] [2022-11-03 02:47:58,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353576514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:58,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:58,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:47:58,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258406615] [2022-11-03 02:47:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:58,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:58,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:58,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:58,562 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2022-11-03 02:47:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:58,602 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-03 02:47:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2022-11-03 02:47:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:58,604 INFO L225 Difference]: With dead ends: 21 [2022-11-03 02:47:58,604 INFO L226 Difference]: Without dead ends: 16 [2022-11-03 02:47:58,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:58,606 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:58,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-03 02:47:58,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-11-03 02:47:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:47:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-03 02:47:58,610 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-11-03 02:47:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:58,610 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-03 02:47:58,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2022-11-03 02:47:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-03 02:47:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:47:58,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:58,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:58,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:58,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:58,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:58,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash -652476163, now seen corresponding path program 1 times [2022-11-03 02:47:58,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:58,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326367122] [2022-11-03 02:47:58,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:58,866 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:47:58,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994971621] [2022-11-03 02:47:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:58,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:58,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:47:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:58,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:47:58,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:59,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:47:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:47:59,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:47:59,340 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:47:59,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:47:59,359 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:47:59,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:47:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:47:59,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:59,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326367122] [2022-11-03 02:47:59,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:47:59,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994971621] [2022-11-03 02:47:59,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994971621] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:47:59,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1173651562] [2022-11-03 02:47:59,432 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:47:59,432 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:47:59,437 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:47:59,442 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:47:59,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:47:59,671 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:47:59,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:47:59,881 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:47:59,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:47:59,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:00,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,309 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:00,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:00,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 132 [2022-11-03 02:48:00,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 38 [2022-11-03 02:48:00,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:00,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:00,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:00,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:00,979 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:48:00,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-03 02:48:01,037 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-03 02:48:01,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 152 treesize of output 155 [2022-11-03 02:48:01,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:01,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 88 [2022-11-03 02:48:01,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:01,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:01,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-03 02:48:01,112 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:01,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-03 02:48:01,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:01,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:01,186 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:01,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:01,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:01,217 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:01,588 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '201#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:01,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:01,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:01,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2022-11-03 02:48:01,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702923073] [2022-11-03 02:48:01,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:01,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:48:01,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:01,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:48:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:48:01,590 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-11-03 02:48:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:01,739 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-03 02:48:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:48:01,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 [2022-11-03 02:48:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:01,741 INFO L225 Difference]: With dead ends: 28 [2022-11-03 02:48:01,741 INFO L226 Difference]: Without dead ends: 26 [2022-11-03 02:48:01,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:48:01,743 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:01,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:48:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-03 02:48:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 14. [2022-11-03 02:48:01,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-03 02:48:01,748 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 9 [2022-11-03 02:48:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:01,749 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-03 02:48:01,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-11-03 02:48:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-03 02:48:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:48:01,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:01,753 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:01,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:01,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-03 02:48:01,974 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1258946262, now seen corresponding path program 2 times [2022-11-03 02:48:01,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:01,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750827853] [2022-11-03 02:48:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:01,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:02,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:02,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754547141] [2022-11-03 02:48:02,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:48:02,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:02,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:02,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:02,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:48:02,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:48:02,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:48:02,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:48:02,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:02,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:02,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:02,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750827853] [2022-11-03 02:48:02,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:02,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754547141] [2022-11-03 02:48:02,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754547141] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:02,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [965624193] [2022-11-03 02:48:02,230 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:48:02,230 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:02,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:02,230 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:02,231 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:02,381 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:02,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:02,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:48:02,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:02,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:02,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:02,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:02,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:02,674 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:02,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:02,841 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:02,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 401 treesize of output 388 [2022-11-03 02:48:02,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:02,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-03 02:48:03,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:03,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:03,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:03,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:03,167 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:48:03,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-03 02:48:03,227 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-03 02:48:03,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 152 treesize of output 155 [2022-11-03 02:48:03,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 88 [2022-11-03 02:48:03,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:03,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-03 02:48:03,299 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:03,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-03 02:48:03,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:03,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:03,354 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:03,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:03,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:03,381 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:03,680 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '331#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:03,680 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:03,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:03,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-03 02:48:03,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593957309] [2022-11-03 02:48:03,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:03,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:48:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:48:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:48:03,682 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:03,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:03,787 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-03 02:48:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:48:03,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:48:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:03,789 INFO L225 Difference]: With dead ends: 35 [2022-11-03 02:48:03,789 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 02:48:03,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:48:03,790 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:03,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:48:03,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 02:48:03,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 13. [2022-11-03 02:48:03,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-03 02:48:03,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-11-03 02:48:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:03,795 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-03 02:48:03,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-03 02:48:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:48:03,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:03,795 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:03,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:03,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:03,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2034389572, now seen corresponding path program 3 times [2022-11-03 02:48:03,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:03,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874874690] [2022-11-03 02:48:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:03,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:04,053 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:04,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470809901] [2022-11-03 02:48:04,054 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:48:04,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:04,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:04,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:04,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:48:04,266 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:48:04,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:48:04,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:48:04,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:04,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:04,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:48:04,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:04,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-11-03 02:48:04,607 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:04,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:48:04,626 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:04,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:48:04,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 28 [2022-11-03 02:48:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:48:04,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:04,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874874690] [2022-11-03 02:48:04,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:04,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470809901] [2022-11-03 02:48:04,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470809901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:04,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [533060907] [2022-11-03 02:48:04,667 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:48:04,667 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:04,668 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:04,668 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:04,668 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:04,810 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:48:04,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:48:04,980 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:04,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:05,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:05,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:05,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,234 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:05,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:05,334 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:05,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 453 treesize of output 440 [2022-11-03 02:48:05,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 63 [2022-11-03 02:48:05,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:05,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:05,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:05,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:05,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:05,621 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:05,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:05,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:05,646 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:05,977 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '479#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:05,977 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:05,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:05,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-03 02:48:05,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145363420] [2022-11-03 02:48:05,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:05,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:48:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:05,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:48:05,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:48:05,979 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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) [2022-11-03 02:48:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:06,114 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-11-03 02:48:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:48:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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 11 [2022-11-03 02:48:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:06,116 INFO L225 Difference]: With dead ends: 30 [2022-11-03 02:48:06,116 INFO L226 Difference]: Without dead ends: 28 [2022-11-03 02:48:06,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:48:06,117 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:06,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 20 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2022-11-03 02:48:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-03 02:48:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2022-11-03 02:48:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 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) [2022-11-03 02:48:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-03 02:48:06,121 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-11-03 02:48:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:06,121 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-03 02:48:06,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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) [2022-11-03 02:48:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-03 02:48:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:48:06,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:06,122 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:06,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:06,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:06,328 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:06,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:06,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1347561873, now seen corresponding path program 4 times [2022-11-03 02:48:06,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:06,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974536865] [2022-11-03 02:48:06,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:06,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:06,374 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:06,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697630259] [2022-11-03 02:48:06,374 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:48:06,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:06,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:06,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:48:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:06,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:48:06,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:06,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:06,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:06,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974536865] [2022-11-03 02:48:06,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:06,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697630259] [2022-11-03 02:48:06,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697630259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:06,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [141091236] [2022-11-03 02:48:06,567 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:48:06,567 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:06,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:06,568 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:06,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:06,714 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:48:06,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:48:06,854 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:06,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:06,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:06,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:07,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,096 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:07,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 75 [2022-11-03 02:48:07,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:07,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-03 02:48:07,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:07,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:07,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:07,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:07,530 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:48:07,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-03 02:48:07,596 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-03 02:48:07,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 181 treesize of output 180 [2022-11-03 02:48:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 88 [2022-11-03 02:48:07,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:07,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 38 [2022-11-03 02:48:07,665 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:07,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 92 [2022-11-03 02:48:07,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:07,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:07,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:07,720 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:07,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:07,738 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:08,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '632#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:08,045 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:08,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:08,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-03 02:48:08,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287823856] [2022-11-03 02:48:08,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:08,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:48:08,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:08,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:48:08,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:48:08,047 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2022-11-03 02:48:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:08,232 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-03 02:48:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:48:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 12 [2022-11-03 02:48:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:08,234 INFO L225 Difference]: With dead ends: 48 [2022-11-03 02:48:08,234 INFO L226 Difference]: Without dead ends: 40 [2022-11-03 02:48:08,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:48:08,235 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 44 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:08,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 36 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:48:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-03 02:48:08,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2022-11-03 02:48:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2022-11-03 02:48:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-03 02:48:08,242 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-11-03 02:48:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:08,242 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-03 02:48:08,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2022-11-03 02:48:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-03 02:48:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:48:08,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:08,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:08,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:08,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:08,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:08,470 INFO L85 PathProgramCache]: Analyzing trace with hash 824116829, now seen corresponding path program 5 times [2022-11-03 02:48:08,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:08,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469096043] [2022-11-03 02:48:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:08,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:08,533 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:08,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885193715] [2022-11-03 02:48:08,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:48:08,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:08,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:08,542 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:08,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:48:08,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:48:08,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:48:08,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:48:09,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:09,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:09,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:09,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 85 [2022-11-03 02:48:09,184 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-03 02:48:09,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-03 02:48:09,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 12 [2022-11-03 02:48:09,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-03 02:48:09,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 24 [2022-11-03 02:48:09,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 53 [2022-11-03 02:48:09,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 41 [2022-11-03 02:48:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:09,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:09,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-11-03 02:48:11,491 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~N~0)))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (forall ((v_ArrVal_255 Int)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) (or (<= c_~N~0 0) (< 1 c_~N~0)) (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~N~0)))))) is different from false [2022-11-03 02:48:11,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 24 [2022-11-03 02:48:11,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-11-03 02:48:13,793 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (or (<= c_~N~0 0) (< 1 c_~N~0))) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse6 (* .cse10 8)) (.cse0 (<= .cse10 2147483647))) (and (or (not .cse0) (let ((.cse3 (+ .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and .cse1 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse2 .cse3 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~N~0)))) (forall ((v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~N~0)))) (forall ((v_ArrVal_255 Int)) (= (select (store (store .cse2 .cse3 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (not (= |c_ULTIMATE.start_main_~i~0#1| 0)) (or (let ((.cse8 (+ .cse6 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and .cse1 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~N~0) (= (select (store (store .cse2 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) (forall ((v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~N~0)))) (forall ((v_ArrVal_255 Int)) (= (select (store (store .cse2 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse0)))) is different from false [2022-11-03 02:48:13,937 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:13,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:48:13,953 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:13,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:48:14,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 299 [2022-11-03 02:48:14,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 24 [2022-11-03 02:48:14,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-11-03 02:48:14,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 28 [2022-11-03 02:48:14,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 170 treesize of output 166 [2022-11-03 02:48:14,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 69 treesize of output 65 [2022-11-03 02:48:14,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 111 treesize of output 107 [2022-11-03 02:48:14,618 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-03 02:48:14,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469096043] [2022-11-03 02:48:14,619 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885193715] [2022-11-03 02:48:14,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885193715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753665489] [2022-11-03 02:48:14,621 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:48:14,621 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:14,621 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:14,622 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:14,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:14,747 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:14,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:14,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:48:14,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:14,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:14,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:14,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:14,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:14,995 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:14,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:15,108 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:15,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 453 treesize of output 434 [2022-11-03 02:48:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:15,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 36 [2022-11-03 02:48:15,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:15,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:15,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:15,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:15,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:15,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:15,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:15,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:15,330 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:15,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:15,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:15,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:15,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:15,379 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:15,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:15,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:15,405 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:18,791 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '843#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:18,791 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:18,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:18,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-11-03 02:48:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022516849] [2022-11-03 02:48:18,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:18,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:48:18,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:18,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:48:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=501, Unknown=2, NotChecked=98, Total=756 [2022-11-03 02:48:18,793 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 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) [2022-11-03 02:48:25,310 WARN L234 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 83 DAG size of output: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:48:27,406 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (exists ((|aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| Int) (v_DerPreprocessor_9 Int) (|aux_div_v_ULTIMATE.start_main_~i~0#1_123_51| Int)) (let ((.cse0 (* |aux_div_v_ULTIMATE.start_main_~i~0#1_123_51| 4294967296))) (and (< (+ .cse0 |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51|) c_~N~0) (<= |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| 2147483647) (<= |c_ULTIMATE.start_main_~i~0#1| (+ .cse0 |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| 1)) (<= 0 |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51|) (= (select (let ((.cse3 (* (mod |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| 4294967296) 8))) (let ((.cse2 (+ .cse3 |c_ULTIMATE.start_main_~b~0#1.offset|))) (store (store .cse1 .cse2 v_DerPreprocessor_9) (+ .cse3 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse1 .cse2)))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~N~0)))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (forall ((v_ArrVal_255 Int)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) (or (<= c_~N~0 0) (< 1 c_~N~0)) (<= 3 c_~N~0) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 2147483647) (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~N~0)))))) is different from false [2022-11-03 02:48:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:27,482 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-11-03 02:48:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 02:48:27,483 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:48:27,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:27,483 INFO L225 Difference]: With dead ends: 34 [2022-11-03 02:48:27,484 INFO L226 Difference]: Without dead ends: 32 [2022-11-03 02:48:27,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=214, Invalid=787, Unknown=3, NotChecked=186, Total=1190 [2022-11-03 02:48:27,485 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:27,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 36 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 56 Unchecked, 0.2s Time] [2022-11-03 02:48:27,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-03 02:48:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-11-03 02:48:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) 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) [2022-11-03 02:48:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-03 02:48:27,495 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2022-11-03 02:48:27,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:27,495 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-03 02:48:27,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 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) [2022-11-03 02:48:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-03 02:48:27,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:48:27,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:27,496 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:27,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-03 02:48:27,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:27,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash 221349744, now seen corresponding path program 1 times [2022-11-03 02:48:27,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:27,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710832288] [2022-11-03 02:48:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:27,747 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:27,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862535559] [2022-11-03 02:48:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:27,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:27,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:27,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:27,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:48:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:28,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 02:48:28,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:28,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:48:28,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:28,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:28,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2022-11-03 02:48:28,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:28,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-03 02:48:28,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 42 [2022-11-03 02:48:28,331 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:28,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 33 [2022-11-03 02:48:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:28,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:28,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:48:29,091 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse5 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse2 (* (mod .cse5 4294967296) 8)) (.cse3 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (not .cse0) (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int)) (= (select (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse1 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) (select .cse1 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse4))))) (+ |ULTIMATE.start_main_~b~0#1.offset| 8)) 9))) (or .cse0 (and (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_307 (Array Int Int))) (= 9 (select (store v_ArrVal_307 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_307) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) (select v_ArrVal_307 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse4)))) (+ |ULTIMATE.start_main_~b~0#1.offset| 8)))) (not (= .cse5 0))))))) is different from false [2022-11-03 02:48:29,564 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8)) is different from false [2022-11-03 02:48:29,810 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse17 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse8 (<= .cse17 2147483647)) (.cse16 (* .cse17 8)) (.cse15 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse15 2147483647)) (.cse7 (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse1 (not .cse8)) (.cse4 (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse9 (* 8 .cse15))) (and (or (not .cse0) (let ((.cse5 (+ 8 (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9))))) (and (or .cse1 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_306 Int)) (or (= (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse4 v_ArrVal_306)))) (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8) (not (<= .cse5 v_ArrVal_306))))) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_306 Int)) (or (= 8 (select (select (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse7 v_ArrVal_306)))) (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (not (<= .cse5 v_ArrVal_306)))) .cse8)))) (or .cse0 (let ((.cse11 (+ (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse9)) 8))) (and (or .cse8 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_306 Int)) (or (= 8 (select (select (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse7 v_ArrVal_306)))) (store .cse10 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (not (<= .cse11 v_ArrVal_306))))) (or .cse1 (let ((.cse12 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or .cse12 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_306 Int)) (or (= (select (select (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse4 v_ArrVal_306)))) (store .cse13 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse13 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8) (not (<= .cse11 v_ArrVal_306))))) (or (not .cse12) (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_305 (Array Int Int))) (= (select (select (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_305))) (store .cse14 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse14 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8))))))))))))) is different from false [2022-11-03 02:48:29,907 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:29,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:48:29,925 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:29,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:48:30,110 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 55 [2022-11-03 02:48:30,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:30,146 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 54 [2022-11-03 02:48:30,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:30,193 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 56 [2022-11-03 02:48:30,241 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 55 [2022-11-03 02:48:30,309 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 533 treesize of output 525 [2022-11-03 02:48:30,343 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 511 treesize of output 501 [2022-11-03 02:48:30,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 487 treesize of output 481 [2022-11-03 02:48:30,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:30,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 482 treesize of output 456 [2022-11-03 02:48:30,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:30,423 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 457 treesize of output 460 [2022-11-03 02:48:30,458 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:30,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 434 treesize of output 422 [2022-11-03 02:48:30,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2022-11-03 02:48:30,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-03 02:48:30,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:30,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710832288] [2022-11-03 02:48:30,820 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:30,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862535559] [2022-11-03 02:48:30,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862535559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:30,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2095030154] [2022-11-03 02:48:30,822 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:48:30,823 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:30,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:30,823 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:30,823 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:30,963 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:48:30,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:48:31,115 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:31,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:31,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:31,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:31,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,368 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:31,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:31,486 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:31,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 453 treesize of output 438 [2022-11-03 02:48:31,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 36 [2022-11-03 02:48:31,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:31,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:31,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:31,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:31,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:31,737 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:31,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:31,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:31,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:31,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:31,782 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:31,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:31,903 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:32,506 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1055#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:32,506 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:32,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:32,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-03 02:48:32,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095972358] [2022-11-03 02:48:32,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:32,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 02:48:32,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:32,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 02:48:32,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=401, Unknown=3, NotChecked=126, Total=600 [2022-11-03 02:48:32,508 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2022-11-03 02:48:32,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:32,934 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-03 02:48:32,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:48:32,935 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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 [2022-11-03 02:48:32,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:32,935 INFO L225 Difference]: With dead ends: 33 [2022-11-03 02:48:32,935 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 02:48:32,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=84, Invalid=477, Unknown=3, NotChecked=138, Total=702 [2022-11-03 02:48:32,937 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:32,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 27 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 41 Unchecked, 0.3s Time] [2022-11-03 02:48:32,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 02:48:32,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-03 02:48:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2022-11-03 02:48:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-03 02:48:32,944 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 14 [2022-11-03 02:48:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:32,944 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-03 02:48:32,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2022-11-03 02:48:32,945 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-03 02:48:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:48:32,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:32,945 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:32,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:33,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 02:48:33,154 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:33,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash -211311242, now seen corresponding path program 6 times [2022-11-03 02:48:33,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:33,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610528808] [2022-11-03 02:48:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:33,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:33,181 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:33,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922036499] [2022-11-03 02:48:33,181 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:48:33,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:33,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:33,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:33,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:48:33,281 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:48:33,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:48:33,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:48:33,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:33,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:33,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:33,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610528808] [2022-11-03 02:48:33,417 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:33,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922036499] [2022-11-03 02:48:33,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922036499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:33,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1141032190] [2022-11-03 02:48:33,421 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:48:33,421 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:33,422 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:33,422 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:33,422 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:33,556 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:48:33,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:48:33,682 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:33,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:33,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:33,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:33,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:33,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:33,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:33,886 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:33,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:33,981 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:33,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 453 treesize of output 434 [2022-11-03 02:48:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:34,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 36 [2022-11-03 02:48:34,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:34,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:34,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:34,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:34,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:34,188 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:34,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:34,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:34,210 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:34,576 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1247#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:34,576 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:34,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:34,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-03 02:48:34,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805407593] [2022-11-03 02:48:34,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:34,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:48:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:34,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:48:34,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:48:34,578 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:34,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:34,827 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2022-11-03 02:48:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:48:34,828 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:48:34,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:34,829 INFO L225 Difference]: With dead ends: 68 [2022-11-03 02:48:34,829 INFO L226 Difference]: Without dead ends: 60 [2022-11-03 02:48:34,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:48:34,831 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 70 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:34,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 54 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:48:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-03 02:48:34,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 31. [2022-11-03 02:48:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 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) [2022-11-03 02:48:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-03 02:48:34,840 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2022-11-03 02:48:34,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:34,841 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-03 02:48:34,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:34,841 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-03 02:48:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:48:34,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:34,842 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:34,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:35,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:35,062 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:35,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:35,062 INFO L85 PathProgramCache]: Analyzing trace with hash -149523490, now seen corresponding path program 2 times [2022-11-03 02:48:35,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:35,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367289589] [2022-11-03 02:48:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:35,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:35,082 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:35,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270134918] [2022-11-03 02:48:35,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:48:35,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:35,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:35,084 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:35,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:48:35,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:48:35,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:48:35,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:48:35,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:48:35,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:48:35,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367289589] [2022-11-03 02:48:35,457 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270134918] [2022-11-03 02:48:35,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270134918] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [188658967] [2022-11-03 02:48:35,459 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:48:35,459 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:35,460 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:35,460 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:35,460 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:35,574 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:48:35,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:48:35,698 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:35,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:35,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:35,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:35,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:35,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:35,905 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:35,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:35,994 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:35,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 401 treesize of output 388 [2022-11-03 02:48:36,017 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:36,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 63 [2022-11-03 02:48:36,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:36,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:36,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:36,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:36,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:36,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:36,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:36,297 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:48:36,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-03 02:48:36,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 90 [2022-11-03 02:48:36,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:36,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 63 [2022-11-03 02:48:36,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:36,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:36,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:36,398 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:36,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:36,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:36,491 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:36,749 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1505#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:36,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:36,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:36,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-03 02:48:36,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029264955] [2022-11-03 02:48:36,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:36,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:48:36,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:48:36,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:48:36,751 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-11-03 02:48:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:37,003 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-11-03 02:48:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:48:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 [2022-11-03 02:48:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:37,005 INFO L225 Difference]: With dead ends: 51 [2022-11-03 02:48:37,005 INFO L226 Difference]: Without dead ends: 44 [2022-11-03 02:48:37,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 9 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:48:37,006 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:37,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 36 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:48:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-03 02:48:37,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2022-11-03 02:48:37,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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) [2022-11-03 02:48:37,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-03 02:48:37,019 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 15 [2022-11-03 02:48:37,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:37,019 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-03 02:48:37,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-11-03 02:48:37,019 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-03 02:48:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:48:37,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:37,020 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:37,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:37,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:48:37,221 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:37,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash -582184476, now seen corresponding path program 7 times [2022-11-03 02:48:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:37,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235679392] [2022-11-03 02:48:37,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:37,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:37,246 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:37,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581387865] [2022-11-03 02:48:37,247 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:48:37,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:37,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:37,248 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:37,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 02:48:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:38,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:48:38,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:38,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:38,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 58 [2022-11-03 02:48:38,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:38,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:38,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 116 [2022-11-03 02:48:38,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:38,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:38,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:38,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:48:38,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:38,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-11-03 02:48:38,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 28 [2022-11-03 02:48:38,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 182 treesize of output 178 [2022-11-03 02:48:39,004 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:39,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:48:39,024 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:39,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:48:39,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-03 02:48:39,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 786 treesize of output 778 [2022-11-03 02:48:39,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 4 [2022-11-03 02:48:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:48:39,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:39,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235679392] [2022-11-03 02:48:39,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:39,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581387865] [2022-11-03 02:48:39,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581387865] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:39,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1607617862] [2022-11-03 02:48:39,492 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:48:39,493 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:39,493 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:39,493 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:39,493 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:39,618 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:48:39,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:48:39,740 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:39,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:39,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:39,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:39,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:39,919 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:39,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:40,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 82 [2022-11-03 02:48:40,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:40,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:48:40,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:40,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:40,284 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:48:40,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-03 02:48:40,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:40,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-03 02:48:40,374 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-03 02:48:40,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 152 treesize of output 153 [2022-11-03 02:48:40,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 61 [2022-11-03 02:48:40,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:40,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 36 [2022-11-03 02:48:40,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:40,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:40,464 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:40,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:40,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:40,515 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:41,032 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1745#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:41,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:41,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:41,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2022-11-03 02:48:41,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117811111] [2022-11-03 02:48:41,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:41,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 02:48:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:41,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 02:48:41,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:48:41,034 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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) [2022-11-03 02:48:41,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:41,620 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2022-11-03 02:48:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 02:48:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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 [2022-11-03 02:48:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:41,621 INFO L225 Difference]: With dead ends: 75 [2022-11-03 02:48:41,621 INFO L226 Difference]: Without dead ends: 73 [2022-11-03 02:48:41,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2022-11-03 02:48:41,622 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 62 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:41,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 115 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 181 Invalid, 0 Unknown, 64 Unchecked, 0.4s Time] [2022-11-03 02:48:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-03 02:48:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 34. [2022-11-03 02:48:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 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) [2022-11-03 02:48:41,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-11-03 02:48:41,639 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2022-11-03 02:48:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:41,640 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-11-03 02:48:41,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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) [2022-11-03 02:48:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-11-03 02:48:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:48:41,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:41,641 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:41,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-03 02:48:41,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:41,847 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:41,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:41,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1236512951, now seen corresponding path program 3 times [2022-11-03 02:48:41,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:41,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180997302] [2022-11-03 02:48:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:41,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:41,892 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:41,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448264799] [2022-11-03 02:48:41,894 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:48:41,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:41,895 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:41,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 02:48:42,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:48:42,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:48:42,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-03 02:48:42,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:42,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:48:42,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:42,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 107 [2022-11-03 02:48:42,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:42,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 188 [2022-11-03 02:48:42,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 41 [2022-11-03 02:48:42,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-03 02:48:42,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:48:42,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:42,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,603 INFO L356 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-11-03 02:48:42,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 42 [2022-11-03 02:48:42,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:42,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:42,650 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 02:48:42,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 44 treesize of output 52 [2022-11-03 02:48:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:42,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:43,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:48:43,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 28 [2022-11-03 02:48:44,193 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse8 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8))) (let ((.cse6 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse1 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ (* 8 (mod .cse7 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (forall ((v_ArrVal_592 Int)) (= (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse0 .cse1 (+ (select .cse0 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) .cse4 v_ArrVal_592) .cse5) 9)) (not .cse6)) (or .cse6 (and (forall ((v_ArrVal_592 Int) (v_ArrVal_585 (Array Int Int))) (= 9 (select (store (store v_ArrVal_585 .cse1 (+ (select v_ArrVal_585 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_585) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) .cse4 v_ArrVal_592) .cse5))) (not (= .cse7 0))))))) is different from false [2022-11-03 02:48:44,729 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:44,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-03 02:48:47,305 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:47,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:48:47,313 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:47,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:48:47,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 174 [2022-11-03 02:48:47,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-11-03 02:48:47,432 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:47,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 124 [2022-11-03 02:48:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-03 02:48:47,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:47,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180997302] [2022-11-03 02:48:47,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:48:47,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448264799] [2022-11-03 02:48:47,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448264799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:48:47,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2097588285] [2022-11-03 02:48:47,486 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:48:47,486 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:48:47,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:48:47,487 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:48:47,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:48:47,610 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:48:47,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:48:47,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:48:47,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:48:47,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:47,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:47,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:47,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:47,833 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:48:47,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:48:47,918 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:48:47,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 453 treesize of output 438 [2022-11-03 02:48:47,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:47,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 36 [2022-11-03 02:48:48,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:48,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:48:48,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:48,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:48,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:48,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:48,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:48,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:48,176 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:48,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:48,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:48:48,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:48:48,225 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:48:48,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:48:48,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:48,350 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:49,030 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2040#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:49,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:49,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:48:49,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-03 02:48:49,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230551983] [2022-11-03 02:48:49,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:49,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:48:49,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:48:49,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=652, Unknown=10, NotChecked=52, Total=812 [2022-11-03 02:48:49,032 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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) [2022-11-03 02:48:49,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:49,656 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-11-03 02:48:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:48:49,656 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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) Word has length 16 [2022-11-03 02:48:49,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:49,657 INFO L225 Difference]: With dead ends: 50 [2022-11-03 02:48:49,657 INFO L226 Difference]: Without dead ends: 48 [2022-11-03 02:48:49,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=134, Invalid=852, Unknown=10, NotChecked=60, Total=1056 [2022-11-03 02:48:49,658 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:49,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 50 Unchecked, 0.3s Time] [2022-11-03 02:48:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-03 02:48:49,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-03 02:48:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-03 02:48:49,674 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 16 [2022-11-03 02:48:49,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:49,674 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-03 02:48:49,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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) [2022-11-03 02:48:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-03 02:48:49,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:48:49,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:49,676 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:49,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:49,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-03 02:48:49,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash -774659120, now seen corresponding path program 4 times [2022-11-03 02:48:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:49,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589493491] [2022-11-03 02:48:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:49,913 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:48:49,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254710799] [2022-11-03 02:48:49,913 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:48:49,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:49,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:49,914 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:49,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 02:48:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:50,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-03 02:48:50,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:50,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:48:50,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:48:50,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:50,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:50,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:48:50,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-03 02:48:50,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-11-03 02:48:50,917 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:50,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 02:48:50,967 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:48:50,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 02:48:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:51,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:51,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-03 02:48:51,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 28 [2022-11-03 02:48:51,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 186 treesize of output 178 [2022-11-03 02:48:52,912 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse4 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8))) (let ((.cse2 (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (.cse3 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (.cse6 (* (mod .cse7 4294967296) 8)) (.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (not .cse0) (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_687 Int) (v_ArrVal_691 Int)) (= 9 (select (store (store (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse1 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) (select .cse1 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse4))))) (+ |ULTIMATE.start_main_~b~0#1.offset| .cse5) v_ArrVal_687) (+ |ULTIMATE.start_main_~b~0#1.offset| .cse6) v_ArrVal_691) (+ |ULTIMATE.start_main_~b~0#1.offset| 8))))) (or (and (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_687 Int) (v_ArrVal_691 Int) (v_ArrVal_682 (Array Int Int))) (= (select (store (store (store v_ArrVal_682 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse2) (+ (select v_ArrVal_682 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse4)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_682) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (+ |ULTIMATE.start_main_~b~0#1.offset| .cse5) v_ArrVal_687) (+ |ULTIMATE.start_main_~b~0#1.offset| .cse6) v_ArrVal_691) (+ |ULTIMATE.start_main_~b~0#1.offset| 8)) 9)) (not (= .cse7 0))) .cse0)))) is different from false [2022-11-03 02:48:53,505 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8)) is different from false [2022-11-03 02:49:18,501 WARN L234 SmtUtils]: Spent 18.38s on a formula simplification. DAG size of input: 55 DAG size of output: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:49:18,569 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:49:18,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 37 [2022-11-03 02:49:18,578 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:49:18,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-03 02:50:12,970 WARN L234 SmtUtils]: Spent 39.69s on a formula simplification. DAG size of input: 93 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:50:13,095 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 51 [2022-11-03 02:50:13,164 INFO L356 Elim1Store]: treesize reduction 47, result has 38.2 percent of original size [2022-11-03 02:50:13,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 50 [2022-11-03 02:50:13,217 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse18 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse17 (* .cse18 8)) (.cse7 (<= .cse18 2147483647)) (.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (let ((.cse12 (not .cse0)) (.cse1 (not .cse7)) (.cse4 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse9 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (+ (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8))) (and (or .cse0 (let ((.cse5 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse1 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_672 Int) (v_ArrVal_679 Int) (v_ArrVal_677 Int)) (= (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse3 .cse4 v_ArrVal_672) .cse5 v_ArrVal_677) .cse6 v_ArrVal_679)))) (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8))) (or .cse7 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_672 Int) (v_ArrVal_679 Int) (v_ArrVal_677 Int)) (= (select (select (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse3 .cse9 v_ArrVal_672) .cse5 v_ArrVal_677) .cse6 v_ArrVal_679)))) (store .cse8 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8)))))) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_arrayElimArr_58 (Array Int Int))) (= (select (select (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_58))) (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8)) .cse12) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_arrayElimArr_59 (Array Int Int))) (= (select (select (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_59))) (store .cse13 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse13 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8)) .cse12) (or .cse0 (let ((.cse15 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse1 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_672 Int) (v_ArrVal_679 Int) (v_ArrVal_677 Int)) (= (select (select (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse3 .cse4 v_ArrVal_672) .cse15 v_ArrVal_677) .cse6 v_ArrVal_679)))) (store .cse14 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse14 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8))) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_672 Int) (v_ArrVal_679 Int) (v_ArrVal_677 Int)) (= (select (select (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse3 .cse9 v_ArrVal_672) .cse15 v_ArrVal_677) .cse6 v_ArrVal_679)))) (store .cse16 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse16 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| 1))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 8)) .cse7)))))))) is different from false [2022-11-03 02:50:13,293 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:50:13,304 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:50:13,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:13,568 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 66 [2022-11-03 02:50:13,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:13,637 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 65 [2022-11-03 02:50:13,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:13,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:13,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:13,701 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 64 [2022-11-03 02:50:13,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:13,738 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 65 [2022-11-03 02:50:13,784 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:50:13,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1009 treesize of output 997 [2022-11-03 02:50:13,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 863 treesize of output 857 [2022-11-03 02:50:13,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 858 treesize of output 852 [2022-11-03 02:50:13,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 853 treesize of output 847 [2022-11-03 02:50:13,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 848 treesize of output 842 [2022-11-03 02:50:13,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 843 treesize of output 837 [2022-11-03 02:50:13,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 838 treesize of output 832 [2022-11-03 02:50:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 1 times theorem prover too weak. 0 trivial. 11 not checked. [2022-11-03 02:50:14,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:14,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589493491] [2022-11-03 02:50:14,051 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:50:14,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254710799] [2022-11-03 02:50:14,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254710799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:50:14,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1116374357] [2022-11-03 02:50:14,057 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:50:14,058 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:50:14,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:50:14,058 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:50:14,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:50:14,193 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:50:14,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:50:14,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:50:14,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:50:14,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,403 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:50:14,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:50:14,526 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:50:14,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 455 treesize of output 440 [2022-11-03 02:50:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 38 [2022-11-03 02:50:14,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:50:14,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:14,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:14,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:14,751 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:50:14,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:50:14,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:14,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:14,807 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:50:14,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:50:14,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:14,929 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:50:15,644 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2337#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:50:15,644 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:50:15,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:50:15,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2022-11-03 02:50:15,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865413338] [2022-11-03 02:50:15,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:50:15,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 02:50:15,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:15,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 02:50:15,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=706, Unknown=12, NotChecked=168, Total=992 [2022-11-03 02:50:15,646 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 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) [2022-11-03 02:50:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:21,361 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-11-03 02:50:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:50:21,361 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:50:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:21,362 INFO L225 Difference]: With dead ends: 69 [2022-11-03 02:50:21,362 INFO L226 Difference]: Without dead ends: 67 [2022-11-03 02:50:21,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 87.4s TimeCoverageRelationStatistics Valid=144, Invalid=910, Unknown=14, NotChecked=192, Total=1260 [2022-11-03 02:50:21,363 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:21,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 108 Unchecked, 0.2s Time] [2022-11-03 02:50:21,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-03 02:50:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2022-11-03 02:50:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:50:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2022-11-03 02:50:21,381 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 18 [2022-11-03 02:50:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:21,382 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2022-11-03 02:50:21,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 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) [2022-11-03 02:50:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2022-11-03 02:50:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:50:21,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:21,383 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:21,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:21,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 02:50:21,584 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1425021295, now seen corresponding path program 8 times [2022-11-03 02:50:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:21,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190623158] [2022-11-03 02:50:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:21,613 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:50:21,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268766898] [2022-11-03 02:50:21,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:50:21,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:50:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:50:21,615 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:50:21,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 02:50:23,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-03 02:50:23,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:50:23,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:50:23,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:23,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:50:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:23,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190623158] [2022-11-03 02:50:23,556 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:50:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268766898] [2022-11-03 02:50:23,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268766898] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:50:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [608442041] [2022-11-03 02:50:23,558 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:50:23,558 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:50:23,558 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:50:23,558 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:50:23,559 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:50:23,673 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:50:23,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:50:23,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:50:23,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:50:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:23,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:23,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:23,878 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:50:23,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:50:23,989 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:50:23,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 455 treesize of output 436 [2022-11-03 02:50:24,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:24,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 38 [2022-11-03 02:50:24,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:24,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-03 02:50:24,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:24,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:24,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:24,151 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:50:24,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-03 02:50:24,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:24,173 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:50:24,546 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2689#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (+ (* (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 4) (* |ULTIMATE.start_main_~i~0#1| 4) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:50:24,546 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:50:24,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:50:24,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2022-11-03 02:50:24,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451607832] [2022-11-03 02:50:24,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:50:24,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:50:24,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:24,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:50:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:50:24,548 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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) [2022-11-03 02:50:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:25,398 INFO L93 Difference]: Finished difference Result 188 states and 210 transitions. [2022-11-03 02:50:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 02:50:25,399 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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) Word has length 18 [2022-11-03 02:50:25,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:25,400 INFO L225 Difference]: With dead ends: 188 [2022-11-03 02:50:25,400 INFO L226 Difference]: Without dead ends: 168 [2022-11-03 02:50:25,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=524, Invalid=1926, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 02:50:25,402 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 396 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:25,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 88 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:50:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-03 02:50:25,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 76. [2022-11-03 02:50:25,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 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) [2022-11-03 02:50:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2022-11-03 02:50:25,432 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 18 [2022-11-03 02:50:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:25,433 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2022-11-03 02:50:25,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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) [2022-11-03 02:50:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2022-11-03 02:50:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:50:25,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:25,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:25,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:25,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:50:25,642 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:25,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash -972050403, now seen corresponding path program 5 times [2022-11-03 02:50:25,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:25,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413397089] [2022-11-03 02:50:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:25,664 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:50:25,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115908960] [2022-11-03 02:50:25,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:50:25,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:50:25,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:50:25,666 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:50:25,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5f829e-9521-4391-a49f-f6eced588c7c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 02:50:26,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:50:26,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:50:26,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-03 02:50:26,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:26,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:50:26,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:50:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-03 02:50:26,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:50:26,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:50:26,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 44 [2022-11-03 02:50:26,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 193 [2022-11-03 02:50:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:26,771 INFO L356 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2022-11-03 02:50:26,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 231 [2022-11-03 02:50:26,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-03 02:50:27,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:27,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:27,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:27,123 INFO L356 Elim1Store]: treesize reduction 100, result has 21.3 percent of original size [2022-11-03 02:50:27,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 197 treesize of output 156 [2022-11-03 02:50:31,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:31,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:31,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:50:31,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:50:31,186 INFO L356 Elim1Store]: treesize reduction 36, result has 28.0 percent of original size [2022-11-03 02:50:31,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 49 [2022-11-03 02:50:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:31,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:50:40,560 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 2 c_~N~0)) (let ((.cse55 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse15 (<= .cse55 2147483647)) (.cse54 (* .cse55 8)) (.cse53 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse28 (<= .cse53 2147483647)) (.cse13 (+ .cse54 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (not .cse15)) (.cse25 (+ .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (+ c_~N~0 4294967295)) (.cse3 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ c_~N~0 4294967294)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse26 (* 8 .cse53))) (and (or (let ((.cse14 (+ (select .cse12 (+ .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse26))))) (and (or (let ((.cse6 (store .cse12 .cse13 .cse14))) (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse6) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse1 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse2 (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse7 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse6 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse1) (= (select .cse2 .cse3) 25) (< .cse1 .cse4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse2 .cse5) 9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse11 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse7 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse6 (+ .cse11 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) (.cse10 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (not (= 9 (select .cse9 .cse5))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse10) (= (select .cse9 .cse3) 25) (< .cse10 .cse4))))))) .cse15) (or .cse16 (let ((.cse19 (store .cse12 .cse25 .cse14))) (let ((.cse21 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse17 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse18 (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse19 (+ .cse20 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse21 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse17) (< .cse17 .cse4) (= (select .cse18 .cse3) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse18 .cse5) 9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse22 (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse21 (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse19 (+ .cse24 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= (select .cse22 .cse3) 25) (<= .cse0 .cse23) (< .cse23 .cse4) (not (= (select .cse22 .cse5) 9))))))))))) (not .cse28)) (or .cse28 (let ((.cse37 (+ (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse26)) (select .cse12 (+ (- 34359738368) .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (let ((.cse31 (store .cse12 .cse13 .cse37))) (let ((.cse32 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse30 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse29 (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse33 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse32 (+ .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse31 (+ .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (= (select .cse29 .cse3) 25) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse30) (< .cse30 .cse4) (not (= 9 (select .cse29 .cse5))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse35 (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse32 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse31 (+ .cse36 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse34) (= (select .cse35 .cse3) 25) (< .cse34 .cse4) (not (= 9 (select .cse35 .cse5))))))))) .cse15) (or .cse16 (let ((.cse46 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (let ((.cse40 (store .cse12 .cse25 .cse37))) (let ((.cse41 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse40) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse38 (store .cse40 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse42 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse41 (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse40 (+ .cse42 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) (.cse39 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select .cse38 .cse3) 25) (not (= 9 (select .cse38 .cse5))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse39) (< .cse39 .cse4)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse43 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse44 (store .cse40 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse41 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse40 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse43) (< .cse43 .cse4) (= (select .cse44 .cse3) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse44 .cse5) 9)))))))) .cse46) (or (not .cse46) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse48 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse49 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse49 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse47) (not (= (select .cse48 .cse5) 9)) (< .cse47 .cse4) (= (select .cse48 .cse3) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse50 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse51 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse52 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse52 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse50) (= (select .cse51 .cse3) 25) (< .cse50 .cse4) (not (= (select .cse51 .cse5) 9)))))))))))))))))) is different from false [2022-11-03 02:50:42,574 WARN L855 $PredicateComparison]: unable to prove that (or (not (< 2 c_~N~0)) (let ((.cse55 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse15 (<= .cse55 2147483647)) (.cse54 (* .cse55 8)) (.cse53 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse28 (<= .cse53 2147483647)) (.cse13 (+ .cse54 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (not .cse15)) (.cse25 (+ .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (+ c_~N~0 4294967295)) (.cse3 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ c_~N~0 4294967294)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse26 (* 8 .cse53))) (and (or (let ((.cse14 (+ (select .cse12 (+ .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse26))))) (and (or (let ((.cse6 (store .cse12 .cse13 .cse14))) (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse6) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse1 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse2 (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse7 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse6 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse1) (= (select .cse2 .cse3) 25) (< .cse1 .cse4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse2 .cse5) 9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse11 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse7 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse6 (+ .cse11 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) (.cse10 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (not (= 9 (select .cse9 .cse5))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse10) (= (select .cse9 .cse3) 25) (< .cse10 .cse4))))))) .cse15) (or .cse16 (let ((.cse19 (store .cse12 .cse25 .cse14))) (let ((.cse21 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse17 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse18 (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse19 (+ .cse20 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse21 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse17) (< .cse17 .cse4) (= (select .cse18 .cse3) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse18 .cse5) 9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse22 (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse21 (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse19 (+ .cse24 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= (select .cse22 .cse3) 25) (<= .cse0 .cse23) (< .cse23 .cse4) (not (= (select .cse22 .cse5) 9))))))))))) (not .cse28)) (or .cse28 (let ((.cse37 (+ (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse26)) (select .cse12 (+ (- 34359738368) .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (let ((.cse31 (store .cse12 .cse13 .cse37))) (let ((.cse32 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse30 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse29 (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse33 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse32 (+ .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse31 (+ .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (= (select .cse29 .cse3) 25) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse30) (< .cse30 .cse4) (not (= 9 (select .cse29 .cse5))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse35 (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse32 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse31 (+ .cse36 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse34) (= (select .cse35 .cse3) 25) (< .cse34 .cse4) (not (= 9 (select .cse35 .cse5))))))))) .cse15) (or .cse16 (let ((.cse46 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (let ((.cse40 (store .cse12 .cse25 .cse37))) (let ((.cse41 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse40) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse38 (store .cse40 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse42 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse41 (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse40 (+ .cse42 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) (.cse39 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select .cse38 .cse3) 25) (not (= 9 (select .cse38 .cse5))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse39) (< .cse39 .cse4)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse43 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse44 (store .cse40 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse41 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse40 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse43) (< .cse43 .cse4) (= (select .cse44 .cse3) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse44 .cse5) 9)))))))) .cse46) (or (not .cse46) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse48 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse49 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse49 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse0 .cse47) (not (= (select .cse48 .cse5) 9)) (< .cse47 .cse4) (= (select .cse48 .cse3) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse50 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse51 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse52 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse52 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse0 .cse50) (= (select .cse51 .cse3) 25) (< .cse50 .cse4) (not (= (select .cse51 .cse5) 9)))))))))))))))))) is different from true [2022-11-03 02:50:47,996 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse33 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse56 (mod .cse33 4294967296)) (.cse55 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse34 (* .cse55 8)) (.cse54 (* .cse56 8))) (let ((.cse57 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse4 (+ c_~N~0 4294967295)) (.cse6 (+ c_~N~0 4294967294)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse40 (+ .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (let ((.cse0 (<= .cse56 2147483647))) (let ((.cse35 (<= .cse55 2147483647)) (.cse9 (+ .cse54 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (not .cse0))) (and (or (let ((.cse10 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (+ .cse34 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse0 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse1 (let ((.cse7 (store v_ArrVal_860 .cse9 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse7 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse7 (+ .cse8 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse7) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (.cse5 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select .cse1 .cse2) 25) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (not (= 9 (select .cse1 .cse3))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse5) (< .cse5 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse12 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse13 (let ((.cse14 (store v_ArrVal_860 .cse9 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse14 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse15 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse14 (+ .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse14) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse12) (< .cse12 .cse6) (= (select .cse13 .cse2) 25) (not (= 9 (select .cse13 .cse3))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse16 (let ((.cse17 (= .cse33 0))) (and (or (not .cse17) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse19 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse20 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse18) (not (= (select .cse19 .cse3) 9)) (< .cse18 .cse6) (= (select .cse19 .cse2) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse21 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse22 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse23 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse23 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse23 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse21) (= (select .cse22 .cse2) 25) (< .cse21 .cse6) (not (= (select .cse22 .cse3) 9))))))) (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse25 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse24 (let ((.cse26 (store v_ArrVal_860 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse26 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse26 (+ .cse27 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) (or (not (= 9 (select .cse24 .cse3))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse25) (< .cse25 .cse6) (= (select .cse24 .cse2) 25)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse30 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse29 (let ((.cse31 (store v_ArrVal_860 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (= (select .cse29 .cse2) 25) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse30) (< .cse30 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= 9 (select .cse29 .cse3))))))) .cse17)))))) .cse35) (or (not .cse35) (and (or .cse0 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse37 (let ((.cse38 (store v_ArrVal_860 .cse9 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse38 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse39 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse38) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse36) (= (select .cse37 .cse2) 25) (< .cse36 .cse6) (not (= (select .cse37 .cse3) 9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse43 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse42 (let ((.cse44 (store v_ArrVal_860 .cse9 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse44 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse44 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (not (= 9 (select .cse42 .cse3))) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse43) (< .cse43 .cse6) (= (select .cse42 .cse2) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse46 (let ((.cse48 (store v_ArrVal_860 .cse28 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse48 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse49 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse48) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse48 (+ .cse49 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (not (= 9 (select .cse46 .cse3))) (<= .cse4 .cse47) (= 25 (select .cse46 .cse2)) (< .cse47 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse50 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse51 (let ((.cse52 (store v_ArrVal_860 .cse28 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse52 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse53 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse52) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse53 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse52 (+ .cse53 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse50) (= (select .cse51 .cse2) 25) (< .cse50 .cse6) (not (= (select .cse51 .cse3) 9)))))) .cse16)))))) .cse57) (or (not .cse57) (let ((.cse63 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((v_ArrVal_861 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse58 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse59 (let ((.cse60 (let ((.cse62 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse62 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse62) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41) (select .cse62 .cse40)))))) (store .cse60 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse61 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse60 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse60) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse61 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse58) (< .cse58 .cse6) (not (= (select .cse59 .cse3) 9)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select .cse59 .cse2) 25)))) (not (<= 1 v_ArrVal_861)))) (forall ((v_ArrVal_861 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse64 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse65 (let ((.cse66 (let ((.cse68 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse68 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse68) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41) (select .cse68 .cse40)))))) (store .cse66 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse67 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse66) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse66 (+ .cse67 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse64) (< .cse64 .cse6) (not (= (select .cse65 .cse3) 9)) (= (select .cse65 .cse2) 25)))) (not (<= 1 v_ArrVal_861)))))))))))) (not (< 2 c_~N~0))) is different from false [2022-11-03 02:50:50,007 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse33 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse56 (mod .cse33 4294967296)) (.cse55 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse34 (* .cse55 8)) (.cse54 (* .cse56 8))) (let ((.cse57 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse4 (+ c_~N~0 4294967295)) (.cse6 (+ c_~N~0 4294967294)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse40 (+ .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (let ((.cse0 (<= .cse56 2147483647))) (let ((.cse35 (<= .cse55 2147483647)) (.cse9 (+ .cse54 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (not .cse0))) (and (or (let ((.cse10 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (+ .cse34 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse0 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse1 (let ((.cse7 (store v_ArrVal_860 .cse9 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse7 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse7 (+ .cse8 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse7) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (.cse5 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select .cse1 .cse2) 25) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (not (= 9 (select .cse1 .cse3))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse5) (< .cse5 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse12 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse13 (let ((.cse14 (store v_ArrVal_860 .cse9 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse14 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse15 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse14 (+ .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse14) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse12) (< .cse12 .cse6) (= (select .cse13 .cse2) 25) (not (= 9 (select .cse13 .cse3))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse16 (let ((.cse17 (= .cse33 0))) (and (or (not .cse17) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse19 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse20 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse18) (not (= (select .cse19 .cse3) 9)) (< .cse18 .cse6) (= (select .cse19 .cse2) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse21 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse22 (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse23 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse23 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse23 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse21) (= (select .cse22 .cse2) 25) (< .cse21 .cse6) (not (= (select .cse22 .cse3) 9))))))) (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse25 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse24 (let ((.cse26 (store v_ArrVal_860 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse26 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse26 (+ .cse27 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) (or (not (= 9 (select .cse24 .cse3))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse25) (< .cse25 .cse6) (= (select .cse24 .cse2) 25)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse30 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse29 (let ((.cse31 (store v_ArrVal_860 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) (select v_ArrVal_860 .cse11))))) (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (= (select .cse29 .cse2) 25) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse30) (< .cse30 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= 9 (select .cse29 .cse3))))))) .cse17)))))) .cse35) (or (not .cse35) (and (or .cse0 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse37 (let ((.cse38 (store v_ArrVal_860 .cse9 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse38 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse39 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse38) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse36) (= (select .cse37 .cse2) 25) (< .cse36 .cse6) (not (= (select .cse37 .cse3) 9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse43 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse42 (let ((.cse44 (store v_ArrVal_860 .cse9 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse44 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse44 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (not (= 9 (select .cse42 .cse3))) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse43) (< .cse43 .cse6) (= (select .cse42 .cse2) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse46 (let ((.cse48 (store v_ArrVal_860 .cse28 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse48 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse49 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse48) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse48 (+ .cse49 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) (.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (not (= 9 (select .cse46 .cse3))) (<= .cse4 .cse47) (= 25 (select .cse46 .cse2)) (< .cse47 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_860 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse50 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse51 (let ((.cse52 (store v_ArrVal_860 .cse28 (+ (select v_ArrVal_860 .cse40) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_860) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41))))) (store .cse52 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse53 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse52) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse53 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse52 (+ .cse53 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse50) (= (select .cse51 .cse2) 25) (< .cse50 .cse6) (not (= (select .cse51 .cse3) 9)))))) .cse16)))))) .cse57) (or (not .cse57) (let ((.cse63 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((v_ArrVal_861 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse58 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse59 (let ((.cse60 (let ((.cse62 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse62 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse62) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41) (select .cse62 .cse40)))))) (store .cse60 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse61 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse60 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse60) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse61 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse58) (< .cse58 .cse6) (not (= (select .cse59 .cse3) 9)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select .cse59 .cse2) 25)))) (not (<= 1 v_ArrVal_861)))) (forall ((v_ArrVal_861 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse64 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse65 (let ((.cse66 (let ((.cse68 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse68 .cse28 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse68) |c_ULTIMATE.start_main_~a~0#1.base|) .cse41) (select .cse68 .cse40)))))) (store .cse66 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse67 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse66) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse66 (+ .cse67 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse64) (< .cse64 .cse6) (not (= (select .cse65 .cse3) 9)) (= (select .cse65 .cse2) 25)))) (not (<= 1 v_ArrVal_861)))))))))))) (not (< 2 c_~N~0))) is different from true [2022-11-03 02:51:32,397 WARN L234 SmtUtils]: Spent 25.48s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:51:47,868 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse60 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (or (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (not (< 2 c_~N~0)) (let ((.cse58 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse59 (mod .cse60 4294967296))) (let ((.cse55 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse15 (<= .cse59 2147483647)) (.cse57 (* .cse59 8)) (.cse56 (* .cse58 8)) (.cse33 (<= .cse58 2147483647))) (let ((.cse1 (not .cse33)) (.cse24 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (not .cse15)) (.cse6 (+ c_~N~0 4294967295)) (.cse8 (+ c_~N~0 4294967294)) (.cse4 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse22 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse32 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse23 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse34 (* 8 .cse55)) (.cse0 (<= .cse55 2147483647))) (and (or (not .cse0) (let ((.cse25 (+ 8 (select .cse23 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse34))))) (and (or .cse1 (let ((.cse13 (store .cse23 .cse24 .cse25))) (and (or .cse2 (forall ((v_ArrVal_861 Int) (v_ArrVal_859 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse3 (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse13 .cse14 v_ArrVal_859)))) (let ((.cse9 (let ((.cse12 (store (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse12 .cse5 (+ v_ArrVal_861 (select (select (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse12) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse9 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse10 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse9 (+ .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (.cse7 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select .cse3 .cse4) 25) (not (= 9 (select .cse3 .cse5))) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse7) (< .cse7 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (not (<= 1 v_ArrVal_861))))) (or .cse15 (forall ((v_ArrVal_861 Int) (v_ArrVal_859 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse17 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse16 (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse13 .cse22 v_ArrVal_859)))) (let ((.cse18 (let ((.cse21 (store (select .cse19 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse21 .cse5 (+ v_ArrVal_861 (select (select (store .cse19 |c_ULTIMATE.start_main_~b~0#1.base| .cse21) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse18 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse19 |c_ULTIMATE.start_main_~b~0#1.base| .cse18) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse18 (+ .cse20 |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 25 (select .cse16 .cse4)) (<= .cse6 .cse17) (< .cse17 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (not (= (select .cse16 .cse5) 9))))) (not (<= 1 v_ArrVal_861)))))))) (or (forall ((v_ArrVal_861 Int) (v_ArrVal_859 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse26 (let ((.cse29 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse23 .cse32 .cse25) .cse22 v_ArrVal_859)))) (let ((.cse28 (let ((.cse31 (store (select .cse29 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse31 .cse5 (+ v_ArrVal_861 (select (select (store .cse29 |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse30 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse29 |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse30 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse28 (+ .cse30 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (.cse27 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (not (= 9 (select .cse26 .cse5))) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select .cse26 .cse4) 25) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse27) (< .cse27 .cse8)))) (not (<= 1 v_ArrVal_861)))) .cse33)))) (or (let ((.cse41 (+ (select .cse23 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse34)) 8))) (and (or .cse1 (forall ((v_ArrVal_861 Int) (v_ArrVal_859 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse35 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse36 (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse23 .cse24 .cse41) .cse14 v_ArrVal_859)))) (let ((.cse37 (let ((.cse40 (store (select .cse39 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse40 .cse5 (+ v_ArrVal_861 (select (select (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| .cse40) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse38 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse37 (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|))))))))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse35) (not (= 9 (select .cse36 .cse5))) (< .cse35 .cse8) (= (select .cse36 .cse4) 25) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (not (<= 1 v_ArrVal_861))))) (or (let ((.cse48 (store .cse23 .cse32 .cse41))) (and (or (forall ((v_ArrVal_861 Int) (v_ArrVal_859 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse42 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse43 (let ((.cse45 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse48 .cse14 v_ArrVal_859)))) (let ((.cse44 (let ((.cse47 (store (select .cse45 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse47 .cse5 (+ v_ArrVal_861 (select (select (store .cse45 |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse44 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse46 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse45 |c_ULTIMATE.start_main_~b~0#1.base| .cse44) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse46 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse44 (+ .cse46 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse42) (< .cse42 .cse8) (= (select .cse43 .cse4) 25) (not (= (select .cse43 .cse5) 9))))) (not (<= 1 v_ArrVal_861)))) .cse2) (or .cse15 (forall ((v_ArrVal_861 Int) (v_ArrVal_859 Int)) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse49 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|)) (.cse50 (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse48 .cse22 v_ArrVal_859)))) (let ((.cse51 (let ((.cse54 (store (select .cse53 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_861))) (store .cse54 .cse5 (+ v_ArrVal_861 (select (select (store .cse53 |c_ULTIMATE.start_main_~b~0#1.base| .cse54) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse51 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse52 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse51 (+ .cse52 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse53 |c_ULTIMATE.start_main_~b~0#1.base| .cse51) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse49) (< .cse49 .cse8) (= (select .cse50 .cse4) 25) (not (= 9 (select .cse50 .cse5)))))) (not (<= 1 v_ArrVal_861))))))) .cse33))) .cse0))))) (not (< .cse60 c_~N~0)))) is different from true [2022-11-03 02:51:48,167 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:51:48,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:51:48,199 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:51:48,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:52:28,501 WARN L234 SmtUtils]: Spent 28.21s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:52:28,502 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:52:28,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 777403 treesize of output 400780 [2022-11-03 02:52:35,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:52:35,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:52:35,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:52:35,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:52:35,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:52:35,486 INFO L173 IndexEqualityManager]: detected equality via solver