./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:31:38,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:31:38,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:31:38,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:31:38,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:31:38,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:31:38,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:31:38,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:31:38,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:31:38,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:31:38,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:31:38,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:31:38,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:31:38,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:31:38,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:31:38,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:31:38,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:31:38,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:31:38,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:31:38,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:31:38,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:31:38,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:31:38,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:31:38,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:31:38,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:31:38,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:31:38,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:31:38,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:31:38,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:31:38,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:31:38,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:31:38,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:31:38,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:31:38,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:31:38,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:31:38,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:31:38,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:31:38,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:31:38,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:31:38,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:31:38,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:31:38,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:31:38,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:31:38,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:31:38,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:31:38,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:31:38,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:31:38,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:31:38,903 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:31:38,903 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:31:38,904 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:31:38,904 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:31:38,904 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:31:38,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:31:38,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:31:38,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:31:38,905 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:31:38,906 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:31:38,906 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:31:38,906 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:31:38,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:31:38,907 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:31:38,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:31:38,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:31:38,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:31:38,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:31:38,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:31:38,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:31:38,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:31:38,910 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:31:38,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:31:38,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:31:38,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:31:38,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:31:38,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:31:38,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:31:38,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:31:38,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:31:38,913 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:31:38,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:31:38,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:31:38,914 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:31:38,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:31:38,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:31:38,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:31:38,915 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_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 [2022-11-22 01:31:39,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:31:39,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:31:39,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:31:39,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:31:39,352 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:31:39,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-11-22 01:31:42,618 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:31:42,867 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:31:42,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-11-22 01:31:42,876 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/data/a9ccdaa1b/97685d045adb47fe8729c40bec614f9a/FLAGd8fe5de1e [2022-11-22 01:31:42,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/data/a9ccdaa1b/97685d045adb47fe8729c40bec614f9a [2022-11-22 01:31:42,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:31:42,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:31:42,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:31:42,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:31:42,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:31:42,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:31:42" (1/1) ... [2022-11-22 01:31:42,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722a2510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:42, skipping insertion in model container [2022-11-22 01:31:42,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:31:42" (1/1) ... [2022-11-22 01:31:42,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:31:42,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:31:43,121 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-11-22 01:31:43,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:31:43,159 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:31:43,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-11-22 01:31:43,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:31:43,201 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:31:43,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43 WrapperNode [2022-11-22 01:31:43,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:31:43,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:31:43,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:31:43,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:31:43,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,247 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2022-11-22 01:31:43,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:31:43,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:31:43,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:31:43,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:31:43,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,278 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:31:43,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:31:43,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:31:43,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:31:43,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (1/1) ... [2022-11-22 01:31:43,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:31:43,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:43,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:31:43,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:31:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:31:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:31:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:31:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:31:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:31:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:31:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:31:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:31:43,451 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:31:43,454 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:31:43,779 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:31:43,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:31:43,933 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-22 01:31:43,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:43 BoogieIcfgContainer [2022-11-22 01:31:43,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:31:43,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:31:43,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:31:43,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:31:43,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:31:42" (1/3) ... [2022-11-22 01:31:43,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe742ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:31:43, skipping insertion in model container [2022-11-22 01:31:43,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:43" (2/3) ... [2022-11-22 01:31:43,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe742ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:31:43, skipping insertion in model container [2022-11-22 01:31:43,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:43" (3/3) ... [2022-11-22 01:31:43,961 INFO L112 eAbstractionObserver]: Analyzing ICFG add-3-n-u.c [2022-11-22 01:31:43,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:31:44,000 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-22 01:31:44,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:31:44,109 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;@18da5681, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:31:44,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-22 01:31:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:31:44,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:44,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:31:44,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:44,152 INFO L85 PathProgramCache]: Analyzing trace with hash 5795618, now seen corresponding path program 1 times [2022-11-22 01:31:44,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:44,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906147114] [2022-11-22 01:31:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:44,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:44,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:44,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568213080] [2022-11-22 01:31:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:44,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:44,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:44,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:31:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:44,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:31:44,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:44,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:44,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906147114] [2022-11-22 01:31:44,559 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:44,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568213080] [2022-11-22 01:31:44,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568213080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:44,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:44,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:31:44,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643174764] [2022-11-22 01:31:44,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:44,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:44,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:44,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:44,614 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 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, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:44,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:44,765 INFO L93 Difference]: Finished difference Result 90 states and 109 transitions. [2022-11-22 01:31:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-22 01:31:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:44,779 INFO L225 Difference]: With dead ends: 90 [2022-11-22 01:31:44,780 INFO L226 Difference]: Without dead ends: 85 [2022-11-22 01:31:44,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:44,788 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:44,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 57 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:31:44,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-22 01:31:44,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2022-11-22 01:31:44,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 69 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2022-11-22 01:31:44,841 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 4 [2022-11-22 01:31:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:44,842 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2022-11-22 01:31:44,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2022-11-22 01:31:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:31:44,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:44,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:31:44,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:45,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 01:31:45,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:45,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash 179664235, now seen corresponding path program 1 times [2022-11-22 01:31:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:45,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401222041] [2022-11-22 01:31:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:45,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:45,066 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:45,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432744599] [2022-11-22 01:31:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:45,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:45,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:45,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:45,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:31:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:45,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:31:45,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:45,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:45,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:45,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401222041] [2022-11-22 01:31:45,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:45,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432744599] [2022-11-22 01:31:45,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432744599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:45,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:45,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:31:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525391459] [2022-11-22 01:31:45,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:45,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:45,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:45,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:45,283 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:45,382 INFO L93 Difference]: Finished difference Result 70 states and 98 transitions. [2022-11-22 01:31:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:45,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:31:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:45,388 INFO L225 Difference]: With dead ends: 70 [2022-11-22 01:31:45,388 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 01:31:45,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:45,390 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:45,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:31:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 01:31:45,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-22 01:31:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 66 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 95 transitions. [2022-11-22 01:31:45,427 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 95 transitions. Word has length 5 [2022-11-22 01:31:45,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:45,428 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 95 transitions. [2022-11-22 01:31:45,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,429 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2022-11-22 01:31:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:31:45,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:45,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:31:45,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:45,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:45,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:45,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash 179515209, now seen corresponding path program 1 times [2022-11-22 01:31:45,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:45,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130833645] [2022-11-22 01:31:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:45,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:45,648 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:45,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789862530] [2022-11-22 01:31:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:45,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:45,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:45,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:45,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:31:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:45,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:31:45,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:45,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:45,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:45,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130833645] [2022-11-22 01:31:45,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:45,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789862530] [2022-11-22 01:31:45,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789862530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:45,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:45,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:31:45,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233597219] [2022-11-22 01:31:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:45,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:45,769 INFO L87 Difference]: Start difference. First operand 67 states and 95 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:45,933 INFO L93 Difference]: Finished difference Result 127 states and 184 transitions. [2022-11-22 01:31:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:45,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:31:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:45,945 INFO L225 Difference]: With dead ends: 127 [2022-11-22 01:31:45,945 INFO L226 Difference]: Without dead ends: 124 [2022-11-22 01:31:45,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:45,950 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 37 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:45,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 48 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:31:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-22 01:31:45,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2022-11-22 01:31:45,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 82 states have (on average 1.8170731707317074) internal successors, (149), 96 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 149 transitions. [2022-11-22 01:31:45,993 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 149 transitions. Word has length 5 [2022-11-22 01:31:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:45,993 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 149 transitions. [2022-11-22 01:31:45,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,994 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 149 transitions. [2022-11-22 01:31:45,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:31:45,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:45,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:31:46,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:46,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:46,203 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:46,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash 179510924, now seen corresponding path program 1 times [2022-11-22 01:31:46,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:46,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669886044] [2022-11-22 01:31:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:46,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:46,215 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:46,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121460094] [2022-11-22 01:31:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:46,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:46,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:46,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:46,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:31:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:46,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:31:46,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:46,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:46,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:46,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669886044] [2022-11-22 01:31:46,329 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:46,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121460094] [2022-11-22 01:31:46,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121460094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:46,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:46,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:31:46,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665267513] [2022-11-22 01:31:46,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:46,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:46,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:46,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:46,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:46,332 INFO L87 Difference]: Start difference. First operand 97 states and 149 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:46,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:46,468 INFO L93 Difference]: Finished difference Result 181 states and 280 transitions. [2022-11-22 01:31:46,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:46,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:31:46,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:46,471 INFO L225 Difference]: With dead ends: 181 [2022-11-22 01:31:46,471 INFO L226 Difference]: Without dead ends: 178 [2022-11-22 01:31:46,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:46,473 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 35 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:46,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 51 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:31:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-22 01:31:46,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 121. [2022-11-22 01:31:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 106 states have (on average 1.7452830188679245) internal successors, (185), 120 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 185 transitions. [2022-11-22 01:31:46,497 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 185 transitions. Word has length 5 [2022-11-22 01:31:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:46,497 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 185 transitions. [2022-11-22 01:31:46,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 185 transitions. [2022-11-22 01:31:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:31:46,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:46,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:31:46,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:46,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:46,706 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:46,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:46,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1270004253, now seen corresponding path program 1 times [2022-11-22 01:31:46,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:46,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833121727] [2022-11-22 01:31:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:46,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:46,718 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:46,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945113596] [2022-11-22 01:31:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:46,721 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:46,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:31:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:46,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:31:46,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:46,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:46,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:46,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833121727] [2022-11-22 01:31:46,819 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:46,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945113596] [2022-11-22 01:31:46,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945113596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:46,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:46,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:31:46,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199283196] [2022-11-22 01:31:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:46,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:46,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:46,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:46,824 INFO L87 Difference]: Start difference. First operand 121 states and 185 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:46,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:46,888 INFO L93 Difference]: Finished difference Result 121 states and 185 transitions. [2022-11-22 01:31:46,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:46,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:31:46,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:46,890 INFO L225 Difference]: With dead ends: 121 [2022-11-22 01:31:46,891 INFO L226 Difference]: Without dead ends: 118 [2022-11-22 01:31:46,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:46,893 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:46,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:31:46,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-22 01:31:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-22 01:31:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 106 states have (on average 1.6886792452830188) internal successors, (179), 117 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 179 transitions. [2022-11-22 01:31:46,930 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 179 transitions. Word has length 6 [2022-11-22 01:31:46,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:46,931 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 179 transitions. [2022-11-22 01:31:46,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:46,932 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 179 transitions. [2022-11-22 01:31:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:31:46,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:46,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:31:46,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:47,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:47,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:47,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:47,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1269871411, now seen corresponding path program 1 times [2022-11-22 01:31:47,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:47,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235768232] [2022-11-22 01:31:47,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:47,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:47,151 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:47,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362241602] [2022-11-22 01:31:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:47,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:47,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:47,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:31:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:47,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:31:47,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:47,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:47,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:47,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235768232] [2022-11-22 01:31:47,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:47,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362241602] [2022-11-22 01:31:47,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362241602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:47,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:47,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:31:47,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713421919] [2022-11-22 01:31:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:47,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:47,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:47,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:47,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:47,248 INFO L87 Difference]: Start difference. First operand 118 states and 179 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:47,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:47,321 INFO L93 Difference]: Finished difference Result 118 states and 179 transitions. [2022-11-22 01:31:47,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:31:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:47,323 INFO L225 Difference]: With dead ends: 118 [2022-11-22 01:31:47,323 INFO L226 Difference]: Without dead ends: 115 [2022-11-22 01:31:47,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:47,326 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:47,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:31:47,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-22 01:31:47,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-22 01:31:47,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 106 states have (on average 1.5754716981132075) internal successors, (167), 114 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:47,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 167 transitions. [2022-11-22 01:31:47,349 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 167 transitions. Word has length 6 [2022-11-22 01:31:47,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:47,350 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 167 transitions. [2022-11-22 01:31:47,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:47,350 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 167 transitions. [2022-11-22 01:31:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:31:47,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:47,351 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-22 01:31:47,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:47,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:47,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:47,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash 848020024, now seen corresponding path program 1 times [2022-11-22 01:31:47,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:47,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261565907] [2022-11-22 01:31:47,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:47,572 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:47,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777088262] [2022-11-22 01:31:47,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:47,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:47,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:47,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:47,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:31:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:47,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:31:47,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:31:47,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:47,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:47,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261565907] [2022-11-22 01:31:47,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:47,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777088262] [2022-11-22 01:31:47,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777088262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:47,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:47,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:31:47,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609125288] [2022-11-22 01:31:47,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:47,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:31:47,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:47,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:31:47,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:31:47,705 INFO L87 Difference]: Start difference. First operand 115 states and 167 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:47,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:47,799 INFO L93 Difference]: Finished difference Result 222 states and 313 transitions. [2022-11-22 01:31:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:31:47,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:31:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:47,801 INFO L225 Difference]: With dead ends: 222 [2022-11-22 01:31:47,801 INFO L226 Difference]: Without dead ends: 124 [2022-11-22 01:31:47,803 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 [2022-11-22 01:31:47,804 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 94 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:47,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:31:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-22 01:31:47,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 115. [2022-11-22 01:31:47,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 106 states have (on average 1.5188679245283019) internal successors, (161), 114 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2022-11-22 01:31:47,829 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 8 [2022-11-22 01:31:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:47,829 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2022-11-22 01:31:47,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2022-11-22 01:31:47,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:31:47,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:47,830 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:31:47,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:48,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:31:48,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:31:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:48,037 INFO L85 PathProgramCache]: Analyzing trace with hash 575715797, now seen corresponding path program 1 times [2022-11-22 01:31:48,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:48,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791918455] [2022-11-22 01:31:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:48,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:48,052 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:48,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614563858] [2022-11-22 01:31:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:48,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:48,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:48,060 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:48,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:31:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:48,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:31:48,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:48,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:31:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:48,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:48,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791918455] [2022-11-22 01:31:48,211 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:31:48,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614563858] [2022-11-22 01:31:48,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614563858] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:31:48,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28535356] [2022-11-22 01:31:48,233 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:31:48,233 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:31:48,237 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:31:48,243 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:31:48,244 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:31:48,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,513 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-11-22 01:31:48,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 81 [2022-11-22 01:31:48,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,772 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:31:48,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:31:48,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:48,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:31:49,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:31:49,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:31:49,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:49,516 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:31:49,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:31:49,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:31:49,746 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:31:49,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:31:49,805 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:03,369 WARN L233 SmtUtils]: Spent 13.00s on a formula simplification. DAG size of input: 140 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:32:03,487 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2363#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-22 01:32:03,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:32:03,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:03,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-22 01:32:03,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412570063] [2022-11-22 01:32:03,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:03,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:32:03,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:03,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:32:03,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:32:03,489 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:03,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:03,751 INFO L93 Difference]: Finished difference Result 394 states and 553 transitions. [2022-11-22 01:32:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:32:03,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:32:03,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:03,753 INFO L225 Difference]: With dead ends: 394 [2022-11-22 01:32:03,754 INFO L226 Difference]: Without dead ends: 391 [2022-11-22 01:32:03,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:32:03,755 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 144 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:03,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 99 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:32:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-22 01:32:03,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 223. [2022-11-22 01:32:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 214 states have (on average 1.425233644859813) internal successors, (305), 222 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 305 transitions. [2022-11-22 01:32:03,779 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 305 transitions. Word has length 8 [2022-11-22 01:32:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:03,780 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 305 transitions. [2022-11-22 01:32:03,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 305 transitions. [2022-11-22 01:32:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:32:03,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:03,781 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:32:03,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:03,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:03,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:03,988 INFO L85 PathProgramCache]: Analyzing trace with hash 329844884, now seen corresponding path program 1 times [2022-11-22 01:32:03,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:03,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11581673] [2022-11-22 01:32:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:03,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:04,002 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:04,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406032391] [2022-11-22 01:32:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:04,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:04,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:04,004 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:04,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:32:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:04,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:32:04,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:32:04,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:32:04,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:04,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11581673] [2022-11-22 01:32:04,104 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:04,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406032391] [2022-11-22 01:32:04,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406032391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:04,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:32:04,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:32:04,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962435652] [2022-11-22 01:32:04,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:04,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:32:04,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:04,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:32:04,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:32:04,111 INFO L87 Difference]: Start difference. First operand 223 states and 305 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:04,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:04,214 INFO L93 Difference]: Finished difference Result 429 states and 586 transitions. [2022-11-22 01:32:04,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:32:04,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:32:04,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:04,217 INFO L225 Difference]: With dead ends: 429 [2022-11-22 01:32:04,218 INFO L226 Difference]: Without dead ends: 223 [2022-11-22 01:32:04,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:32:04,226 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 65 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:04,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:32:04,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-22 01:32:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-11-22 01:32:04,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 214 states have (on average 1.3691588785046729) internal successors, (293), 222 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 293 transitions. [2022-11-22 01:32:04,250 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 293 transitions. Word has length 9 [2022-11-22 01:32:04,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:04,250 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 293 transitions. [2022-11-22 01:32:04,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 293 transitions. [2022-11-22 01:32:04,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:32:04,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:04,254 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:32:04,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:04,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:04,462 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:04,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1596340734, now seen corresponding path program 1 times [2022-11-22 01:32:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:04,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637420222] [2022-11-22 01:32:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:04,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:04,492 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:04,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577934696] [2022-11-22 01:32:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:04,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:04,500 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:04,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:32:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:04,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:32:04,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:32:04,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:32:04,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637420222] [2022-11-22 01:32:04,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577934696] [2022-11-22 01:32:04,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577934696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:04,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539623399] [2022-11-22 01:32:04,705 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 01:32:04,706 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:32:04,706 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:32:04,706 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:32:04,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:32:04,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,885 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:32:04,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:32:04,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-22 01:32:04,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:04,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:05,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:05,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:05,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:05,411 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:32:05,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:32:05,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:05,603 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:05,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:05,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:05,959 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:05,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:05,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:05,995 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:05,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,079 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,166 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,332 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,394 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,463 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,607 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,696 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:06,775 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:06,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:06,874 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:08,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1539623399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:08,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:08,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4] total 14 [2022-11-22 01:32:08,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868207158] [2022-11-22 01:32:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:08,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:32:08,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:08,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:32:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:32:08,404 INFO L87 Difference]: Start difference. First operand 223 states and 293 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:09,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:09,015 INFO L93 Difference]: Finished difference Result 376 states and 490 transitions. [2022-11-22 01:32:09,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:32:09,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:32:09,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:09,018 INFO L225 Difference]: With dead ends: 376 [2022-11-22 01:32:09,019 INFO L226 Difference]: Without dead ends: 226 [2022-11-22 01:32:09,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:32:09,023 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:09,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:32:09,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-22 01:32:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 198. [2022-11-22 01:32:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 197 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2022-11-22 01:32:09,047 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 15 [2022-11-22 01:32:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:09,048 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2022-11-22 01:32:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2022-11-22 01:32:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:32:09,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:09,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-22 01:32:09,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:09,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:09,264 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:09,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:09,265 INFO L85 PathProgramCache]: Analyzing trace with hash -736609332, now seen corresponding path program 1 times [2022-11-22 01:32:09,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:09,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728578291] [2022-11-22 01:32:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:09,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:09,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200536978] [2022-11-22 01:32:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:09,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:09,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:09,285 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:09,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:32:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:09,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:32:09,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:09,428 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:32:09,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:32:09,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:09,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728578291] [2022-11-22 01:32:09,467 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:09,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200536978] [2022-11-22 01:32:09,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200536978] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:09,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1699247400] [2022-11-22 01:32:09,472 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 01:32:09,473 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:32:09,473 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:32:09,473 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:32:09,474 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:32:09,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,672 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:32:09,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:32:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-22 01:32:09,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:09,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:09,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:10,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:10,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:10,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:10,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:10,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:10,326 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:32:10,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:32:10,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:10,504 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:10,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:11,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:11,308 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:11,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:11,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:11,353 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:11,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:11,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:11,453 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:11,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:11,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:11,563 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:11,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:11,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:11,885 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:11,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:11,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:11,964 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:11,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,057 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,305 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,355 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,454 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,518 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,781 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,819 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,896 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:12,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:12,960 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:12,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:13,072 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:14,357 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5093#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-22 01:32:14,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:32:14,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:14,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-22 01:32:14,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123318741] [2022-11-22 01:32:14,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:14,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:32:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:14,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:32:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:32:14,363 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:14,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:14,588 INFO L93 Difference]: Finished difference Result 402 states and 523 transitions. [2022-11-22 01:32:14,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:32:14,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 01:32:14,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:14,591 INFO L225 Difference]: With dead ends: 402 [2022-11-22 01:32:14,591 INFO L226 Difference]: Without dead ends: 207 [2022-11-22 01:32:14,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:32:14,593 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 99 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:14,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 78 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:32:14,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-22 01:32:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-11-22 01:32:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.1919191919191918) internal successors, (236), 206 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 236 transitions. [2022-11-22 01:32:14,616 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 236 transitions. Word has length 22 [2022-11-22 01:32:14,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:14,616 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 236 transitions. [2022-11-22 01:32:14,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 236 transitions. [2022-11-22 01:32:14,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 01:32:14,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:14,618 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:32:14,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:14,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 01:32:14,825 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:14,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash 224538625, now seen corresponding path program 1 times [2022-11-22 01:32:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:14,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629423164] [2022-11-22 01:32:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:14,856 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:14,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466959759] [2022-11-22 01:32:14,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:14,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:14,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:14,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:14,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 01:32:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:15,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:32:15,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:32:15,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:15,250 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:32:15,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:15,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629423164] [2022-11-22 01:32:15,251 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:15,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466959759] [2022-11-22 01:32:15,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466959759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:15,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [149656710] [2022-11-22 01:32:15,256 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 01:32:15,256 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:32:15,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:32:15,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:32:15,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:32:15,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,454 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:32:15,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:32:15,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-22 01:32:15,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:15,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:15,899 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:32:15,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:32:16,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:16,034 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:16,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:16,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:16,649 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:16,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:16,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:16,689 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:16,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:16,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:16,773 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:16,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:16,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:16,881 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:16,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,189 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,272 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,366 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,544 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,585 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,687 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,745 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:17,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:17,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:17,999 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:18,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:18,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:18,037 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:18,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:18,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:18,118 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:18,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:18,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:18,170 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:18,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:18,338 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:19,760 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6160#(and (<= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 1000 |ULTIMATE.start_main_~m~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 1500) (<= 0 |ULTIMATE.start_main_~#C~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|) (not (<= |ULTIMATE.start_main_~k~0#1| 2147483646)) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 01:32:19,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:32:19,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:19,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-22 01:32:19,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110748476] [2022-11-22 01:32:19,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:19,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:32:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:32:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:32:19,762 INFO L87 Difference]: Start difference. First operand 207 states and 236 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:20,201 INFO L93 Difference]: Finished difference Result 611 states and 773 transitions. [2022-11-22 01:32:20,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:32:20,202 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-22 01:32:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:20,204 INFO L225 Difference]: With dead ends: 611 [2022-11-22 01:32:20,204 INFO L226 Difference]: Without dead ends: 407 [2022-11-22 01:32:20,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:32:20,206 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 311 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:20,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 78 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:32:20,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-22 01:32:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 395. [2022-11-22 01:32:20,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 386 states have (on average 1.2020725388601037) internal successors, (464), 394 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 464 transitions. [2022-11-22 01:32:20,266 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 464 transitions. Word has length 37 [2022-11-22 01:32:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:20,266 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 464 transitions. [2022-11-22 01:32:20,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 464 transitions. [2022-11-22 01:32:20,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 01:32:20,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:20,273 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:32:20,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-22 01:32:20,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:32:20,480 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash -103829984, now seen corresponding path program 2 times [2022-11-22 01:32:20,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:20,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260282809] [2022-11-22 01:32:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:20,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:20,505 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:20,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383627267] [2022-11-22 01:32:20,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:32:20,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:20,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:20,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:20,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 01:32:20,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:32:20,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:32:20,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:32:20,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-22 01:32:20,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-22 01:32:20,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:20,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260282809] [2022-11-22 01:32:20,854 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:20,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383627267] [2022-11-22 01:32:20,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383627267] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:20,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2128277597] [2022-11-22 01:32:20,857 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 01:32:20,857 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:32:20,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:32:20,858 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:32:20,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:32:20,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:20,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:20,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,051 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:32:21,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:32:21,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-22 01:32:21,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:21,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:21,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:21,671 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:32:21,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:32:21,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:21,815 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:21,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:22,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:22,512 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:22,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:22,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:22,554 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:22,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:22,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:22,636 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:22,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:22,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:22,726 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:22,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,078 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,161 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,246 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,413 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,447 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,534 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,585 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,820 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,855 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,936 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:23,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:23,985 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:23,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:24,102 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:25,545 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7883#(and (<= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 1000 |ULTIMATE.start_main_~m~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 1500) (<= 0 |ULTIMATE.start_main_~#C~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|) (not (<= |ULTIMATE.start_main_~k~0#1| 2147483646)) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 01:32:25,545 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:32:25,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:25,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-22 01:32:25,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465511491] [2022-11-22 01:32:25,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:25,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:32:25,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:32:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:32:25,547 INFO L87 Difference]: Start difference. First operand 395 states and 464 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:25,686 INFO L93 Difference]: Finished difference Result 395 states and 464 transitions. [2022-11-22 01:32:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:32:25,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 58 [2022-11-22 01:32:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:25,690 INFO L225 Difference]: With dead ends: 395 [2022-11-22 01:32:25,690 INFO L226 Difference]: Without dead ends: 392 [2022-11-22 01:32:25,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:32:25,691 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 66 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:25,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 42 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:32:25,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-22 01:32:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-22 01:32:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 386 states have (on average 1.072538860103627) internal successors, (414), 391 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 414 transitions. [2022-11-22 01:32:25,734 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 414 transitions. Word has length 58 [2022-11-22 01:32:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:25,735 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 414 transitions. [2022-11-22 01:32:25,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 414 transitions. [2022-11-22 01:32:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:32:25,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:25,738 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-22 01:32:25,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:25,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:25,946 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:25,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:25,947 INFO L85 PathProgramCache]: Analyzing trace with hash -386970142, now seen corresponding path program 2 times [2022-11-22 01:32:25,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:25,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279568938] [2022-11-22 01:32:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:25,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:25,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:25,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648131377] [2022-11-22 01:32:25,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:32:25,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:25,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:25,971 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:26,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:32:26,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:32:26,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:32:26,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:32:26,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-22 01:32:26,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-22 01:32:26,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:26,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279568938] [2022-11-22 01:32:26,396 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:26,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648131377] [2022-11-22 01:32:26,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648131377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:26,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087703003] [2022-11-22 01:32:26,398 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 01:32:26,398 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:32:26,399 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:32:26,399 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:32:26,399 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:32:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:26,541 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-11-22 01:32:26,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 81 [2022-11-22 01:32:26,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:26,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:26,771 INFO L217 Elim1Store]: Index analysis took 151 ms [2022-11-22 01:32:26,931 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:32:26,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:32:27,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:27,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:27,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:27,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:27,431 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:32:27,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:32:27,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:27,562 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:27,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,110 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,147 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,221 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,327 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,587 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,652 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,719 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,859 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,892 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:28,960 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:28,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:28,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:29,006 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:29,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:29,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:29,206 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:29,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:29,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:29,249 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:29,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:29,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:29,339 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:29,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:29,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:29,390 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:29,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:29,472 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:30,779 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9418#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-22 01:32:30,779 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:32:30,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:30,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-22 01:32:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459054022] [2022-11-22 01:32:30,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:32:30,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:32:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:32:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:32:30,782 INFO L87 Difference]: Start difference. First operand 392 states and 414 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:30,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:30,902 INFO L93 Difference]: Finished difference Result 392 states and 414 transitions. [2022-11-22 01:32:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:32:30,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:32:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:30,905 INFO L225 Difference]: With dead ends: 392 [2022-11-22 01:32:30,905 INFO L226 Difference]: Without dead ends: 389 [2022-11-22 01:32:30,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:32:30,907 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 110 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:30,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 18 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:32:30,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-22 01:32:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 250. [2022-11-22 01:32:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 247 states have (on average 1.0647773279352226) internal successors, (263), 249 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 263 transitions. [2022-11-22 01:32:30,939 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 263 transitions. Word has length 76 [2022-11-22 01:32:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:30,940 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 263 transitions. [2022-11-22 01:32:30,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 263 transitions. [2022-11-22 01:32:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:32:30,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:30,942 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:32:30,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:31,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:32:31,148 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-22 01:32:31,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:31,149 INFO L85 PathProgramCache]: Analyzing trace with hash 578205033, now seen corresponding path program 1 times [2022-11-22 01:32:31,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:31,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144658407] [2022-11-22 01:32:31,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:31,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:31,185 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:32:31,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201518244] [2022-11-22 01:32:31,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:31,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:32:31,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:31,187 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:32:31,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-22 01:32:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:31,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 01:32:31,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:31,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 646 proven. 145 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-11-22 01:32:31,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 646 proven. 145 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-11-22 01:32:31,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:31,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144658407] [2022-11-22 01:32:31,999 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:32:31,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201518244] [2022-11-22 01:32:31,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201518244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:31,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1057677355] [2022-11-22 01:32:32,001 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 01:32:32,002 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:32:32,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:32:32,002 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:32:32,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:32:32,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,147 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-11-22 01:32:32,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 81 [2022-11-22 01:32:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,331 INFO L217 Elim1Store]: Index analysis took 113 ms [2022-11-22 01:32:32,481 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-22 01:32:32,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-22 01:32:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:32,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-22 01:32:32,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:32:32,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:32,850 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-22 01:32:32,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-22 01:32:32,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:32,972 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:32,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,422 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,455 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,531 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,619 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,834 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,905 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:33,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:33,976 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:33,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,109 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,148 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,240 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,292 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,481 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,520 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,605 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:32:34,648 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-22 01:32:34,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-22 01:32:34,746 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:32:35,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1057677355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:35,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:32:35,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 13] total 34 [2022-11-22 01:32:35,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410529908] [2022-11-22 01:32:35,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:35,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:32:35,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:35,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:32:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=835, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 01:32:35,940 INFO L87 Difference]: Start difference. First operand 250 states and 263 transitions. Second 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) [2022-11-22 01:32:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:37,160 INFO L93 Difference]: Finished difference Result 252 states and 266 transitions. [2022-11-22 01:32:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:32:37,161 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 107 [2022-11-22 01:32:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:37,163 INFO L225 Difference]: With dead ends: 252 [2022-11-22 01:32:37,163 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:32:37,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=403, Invalid=1157, Unknown=0, NotChecked=0, Total=1560 [2022-11-22 01:32:37,167 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:37,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:32:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:32:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:32:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:37,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:32:37,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2022-11-22 01:32:37,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:37,169 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:32:37,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-22 01:32:37,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:32:37,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:32:37,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-22 01:32:37,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-22 01:32:37,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-22 01:32:37,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-22 01:32:37,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-22 01:32:37,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-22 01:32:37,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-22 01:32:37,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-22 01:32:37,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-22 01:32:37,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-22 01:32:37,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-22 01:32:37,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-22 01:32:37,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-22 01:32:37,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-22 01:32:37,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-22 01:32:37,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-22 01:32:37,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-22 01:32:37,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-22 01:32:37,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:37,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 01:32:37,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:32:42,779 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 71) no Hoare annotation was computed. [2022-11-22 01:32:42,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:32:42,780 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-22 01:32:42,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-22 01:32:42,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-22 01:32:42,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-22 01:32:42,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:32:42,781 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (<= |ULTIMATE.start_main_~i~0#1| 999)) (.cse4 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse5 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse6 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse10 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse11 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse12 (<= 0 |#StackHeapBarrier|)) (.cse13 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse14 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~k~0#1| 0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse8 .cse9 .cse10 .cse11 (<= 1800 |ULTIMATE.start_main_~k~0#1|) .cse12 .cse13 .cse14))) [2022-11-22 01:32:42,781 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2022-11-22 01:32:42,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-22 01:32:42,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-22 01:32:42,782 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-11-22 01:32:42,782 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-11-22 01:32:42,782 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-11-22 01:32:42,783 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-22 01:32:42,783 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-22 01:32:42,783 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-22 01:32:42,783 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 53) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (<= |ULTIMATE.start_main_~i~0#1| 999)) (.cse4 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse5 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse9 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse11 (<= 0 |#StackHeapBarrier|)) (.cse12 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse13 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 .cse1 .cse2 (<= 1800 |ULTIMATE.start_main_~p~0#1|) .cse3 .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse7 .cse8 .cse9 .cse10 (<= 1800 |ULTIMATE.start_main_~k~0#1|) .cse11 .cse12 .cse13))) [2022-11-22 01:32:42,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-22 01:32:42,784 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 53) no Hoare annotation was computed. [2022-11-22 01:32:42,784 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 75) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~k~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse2 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse4 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse8 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse12 (= |#NULL.offset| 0)) (.cse13 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse14 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse15 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse5 (<= |ULTIMATE.start_main_~i~0#1| 2147483646)) (.cse6 (<= 1800 |ULTIMATE.start_main_~p~0#1|)) (.cse7 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse9 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse11 (<= |ULTIMATE.start_main_~k~0#1| 2147483646)) (.cse16 (<= 0 |#StackHeapBarrier|)) (.cse17 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse18 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 1800 |ULTIMATE.start_main_~k~0#1|) .cse16 .cse17 .cse18) (and .cse0 .cse1 (or (and .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~j~0#1| 1500) .cse8 (<= 1 |ULTIMATE.start_main_~k~0#1|) .cse12 .cse13 .cse14 .cse15) (and .cse2 .cse3 .cse4 .cse8 .cse12 .cse13 .cse14 .cse15 (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|))) .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse16 .cse17 .cse18))) [2022-11-22 01:32:42,785 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse4 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse6 (= |#NULL.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse8 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse9 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~j~0#1| 1500) .cse4 .cse5 (<= 1 |ULTIMATE.start_main_~k~0#1|) .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|)))) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-22 01:32:42,785 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2022-11-22 01:32:42,785 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-22 01:32:42,785 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-22 01:32:42,786 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 51) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~0#1| 999) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse5 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse9 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~j~0#1| 1500) .cse4 .cse5 .cse6 (<= 1 |ULTIMATE.start_main_~k~0#1|) .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|)))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-22 01:32:42,786 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2022-11-22 01:32:42,786 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-22 01:32:42,786 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-22 01:32:42,787 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-22 01:32:42,787 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-22 01:32:42,787 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-11-22 01:32:42,787 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:32:42,787 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-11-22 01:32:42,788 INFO L895 garLoopResultBuilder]: At program point L66-2(lines 66 73) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (<= |ULTIMATE.start_main_~i~0#1| 999)) (.cse4 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse5 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse9 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse11 (<= 0 |#StackHeapBarrier|)) (.cse12 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse13 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 .cse1 .cse2 (<= 1800 |ULTIMATE.start_main_~p~0#1|) .cse3 .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse7 .cse8 .cse9 .cse10 (<= 1800 |ULTIMATE.start_main_~k~0#1|) .cse11 .cse12 .cse13))) [2022-11-22 01:32:42,788 INFO L899 garLoopResultBuilder]: For program point L66-3(lines 66 73) no Hoare annotation was computed. [2022-11-22 01:32:42,788 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-22 01:32:42,789 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 38) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse7 (= |#NULL.base| 0))) (or (and .cse0 (<= 1500 |ULTIMATE.start_main_~j~0#1|) .cse1 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse4 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) .cse5 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) .cse6 .cse7) (let ((.cse8 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~p~0#1|) 1073741824) 4)) (.cse9 (select |#memory_int| 1))) (and (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse8) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) .cse1 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#C~0#1.base|) .cse8) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#C~0#1.base|) (= (select |#length| |ULTIMATE.start_main_~#B~0#1.base|) .cse8) (= (select |#valid| |ULTIMATE.start_main_~#C~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~k~0#1| 0) .cse2 .cse3 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 12 (select |#length| 2)) (= (select |#valid| 2) 1) .cse4 (= (select .cse9 0) 48) (not (= |ULTIMATE.start_main_~#C~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~j~0#1| 0) .cse5 (= (select .cse9 1) 0) (not (= |ULTIMATE.start_main_~#C~0#1.base| |ULTIMATE.start_main_~#B~0#1.base|)) .cse6 (< 0 |#StackHeapBarrier|) .cse7)))) [2022-11-22 01:32:42,789 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-22 01:32:42,789 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-11-22 01:32:42,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-22 01:32:42,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:32:42,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-22 01:32:42,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-22 01:32:42,791 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 43 55) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~k~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse2 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse4 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse8 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse12 (= |#NULL.offset| 0)) (.cse13 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse14 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse15 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse5 (<= |ULTIMATE.start_main_~i~0#1| 2147483646)) (.cse6 (<= 1800 |ULTIMATE.start_main_~p~0#1|)) (.cse7 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse9 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse11 (<= |ULTIMATE.start_main_~k~0#1| 2147483646)) (.cse16 (<= 0 |#StackHeapBarrier|)) (.cse17 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse18 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 1800 |ULTIMATE.start_main_~k~0#1|) .cse16 .cse17 .cse18) (and .cse0 .cse1 (or (and .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~j~0#1| 1500) .cse8 (<= 1 |ULTIMATE.start_main_~k~0#1|) .cse12 .cse13 .cse14 .cse15) (and .cse2 .cse3 .cse4 .cse8 .cse12 .cse13 .cse14 .cse15 (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|))) .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse16 .cse17 .cse18))) [2022-11-22 01:32:42,791 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-22 01:32:42,791 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 71) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~0#1| 999) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse5 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse9 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~j~0#1| 1500) .cse4 .cse5 .cse6 (<= 1 |ULTIMATE.start_main_~k~0#1|) .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~k~0#1| 0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|)))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-22 01:32:42,795 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:32:42,798 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:32:42,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:32:42 BoogieIcfgContainer [2022-11-22 01:32:42,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:32:42,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:32:42,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:32:42,881 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:32:42,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:43" (3/4) ... [2022-11-22 01:32:42,885 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:32:42,897 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-22 01:32:42,898 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-22 01:32:42,898 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:32:42,899 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:32:42,958 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:32:42,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:32:42,960 INFO L158 Benchmark]: Toolchain (without parser) took 60039.06ms. Allocated memory was 153.1MB in the beginning and 450.9MB in the end (delta: 297.8MB). Free memory was 115.9MB in the beginning and 240.9MB in the end (delta: -125.0MB). Peak memory consumption was 174.8MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,966 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 153.1MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:32:42,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.77ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 104.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.02ms. Allocated memory is still 153.1MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,969 INFO L158 Benchmark]: Boogie Preprocessor took 34.27ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 101.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,970 INFO L158 Benchmark]: RCFGBuilder took 659.38ms. Allocated memory is still 153.1MB. Free memory was 101.2MB in the beginning and 83.3MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,970 INFO L158 Benchmark]: TraceAbstraction took 58934.69ms. Allocated memory was 153.1MB in the beginning and 450.9MB in the end (delta: 297.8MB). Free memory was 82.4MB in the beginning and 245.1MB in the end (delta: -162.7MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,971 INFO L158 Benchmark]: Witness Printer took 78.09ms. Allocated memory is still 450.9MB. Free memory was 245.1MB in the beginning and 240.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:32:42,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 153.1MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.77ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 104.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.02ms. Allocated memory is still 153.1MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.27ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 101.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 659.38ms. Allocated memory is still 153.1MB. Free memory was 101.2MB in the beginning and 83.3MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 58934.69ms. Allocated memory was 153.1MB in the beginning and 450.9MB in the end (delta: 297.8MB). Free memory was 82.4MB in the beginning and 245.1MB in the end (delta: -162.7MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. * Witness Printer took 78.09ms. Allocated memory is still 450.9MB. Free memory was 245.1MB in the beginning and 240.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 58.7s, OverallIterations: 15, TraceHistogramMax: 30, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1188 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1188 mSDsluCounter, 659 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 456 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 919 IncrementalHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 456 mSolverCounterUnsat, 356 mSDtfsCounter, 919 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1012 GetRequests, 863 SyntacticMatches, 1 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 23.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=395occurred in iteration=12, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 455 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 100 NumberOfFragments, 1135 HoareAnnotationTreeSize, 9 FomulaSimplifications, 2690 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 17168 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 371 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 672 ConstructedInterpolants, 0 QuantifiedInterpolants, 1820 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2054 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 4054/5082 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 4.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 37, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 171, TOOLS_POST_TIME: 4.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 169, TOOLS_QUANTIFIERELIM_TIME: 4.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 274, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 26, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 18, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 33, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 37, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 15, LOOP_SUMMARIZER_CACHE_MISSES: 15, LOOP_SUMMARIZER_OVERALL_TIME: 3.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 33, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1096, DAG_COMPRESSION_RETAINED_NODES: 111, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((1800 <= p && i <= 999) && ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && j <= 1500) && A == 0) && 0 <= i) && 1 <= k) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) || (((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && k == 0) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && j < n))) && p <= 1800) && k <= 2147483646) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((((((((((((m == 1000 && 1500 <= j) && C == 0) && 0 <= A) && i <= 2147483646) && p == 1800) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 1800 <= k) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) || ((((((((((((((((((((((((((((((((unknown-#length-unknown[A] == m * n * p % 1073741824 * 4 && unknown-#length-unknown[3] == 12) && i == 0) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && C == 0) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && unknown-#length-unknown[C] == m * n * p % 1073741824 * 4) && unknown-#StackHeapBarrier-unknown < C) && unknown-#length-unknown[B] == m * n * p % 1073741824 * 4) && \valid[C] == 1) && \valid[B] == 1) && k == 0) && p == 1800) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && 12 == unknown-#length-unknown[2]) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !(C == A)) && !(B == A)) && j == 0) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && !(C == B)) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((i <= 999 && k <= 2147483646) && (((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && j <= 1500) && p == 1800) && A == 0) && 0 <= i) && 1 <= k) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) || ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && k == 0) && p == 1800) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && j < n))) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((((((((((((((((((0 <= k && m <= 1000) && m == 1000) && C == 0) && 0 <= A) && i <= 2147483646) && 1800 <= p) && 0 <= j) && A == 0) && 0 <= i) && p <= 1800) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 1800 <= k) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) || (((((((((((0 <= k && m <= 1000) && ((((((((((m == 1000 && C == 0) && 0 <= A) && j <= 1500) && A == 0) && 1 <= k) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) || ((((((((m == 1000 && C == 0) && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && j < n))) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && p <= 1800) && k <= 2147483646) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (((((((((((((((((((0 <= k && m <= 1000) && m == 1000) && C == 0) && 0 <= A) && i <= 2147483646) && 1800 <= p) && 0 <= j) && A == 0) && 0 <= i) && p <= 1800) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 1800 <= k) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) || (((((((((((0 <= k && m <= 1000) && ((((((((((m == 1000 && C == 0) && 0 <= A) && j <= 1500) && A == 0) && 1 <= k) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) || ((((((((m == 1000 && C == 0) && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && j < n))) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && p <= 1800) && k <= 2147483646) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 999) && 0 <= j) && k == 0) && p == 1800) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((((((m == 1000 && C == 0) && 0 <= A) && 1800 <= p) && i <= 999) && 0 <= j) && A == 0) && 0 <= i) && p <= 1800) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 1800 <= k) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 999) && 0 <= j) && k == 0) && p == 1800) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || ((((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 999) && 0 <= j) && p == 1800) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 1800 <= k) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: ((((i <= 999 && k <= 2147483646) && (((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && j <= 1500) && p == 1800) && A == 0) && 0 <= i) && 1 <= k) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) || ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && k == 0) && p == 1800) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && j < n))) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 999) && 0 <= j) && k == 0) && p == 1800) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((((((m == 1000 && C == 0) && 0 <= A) && 1800 <= p) && i <= 999) && 0 <= j) && A == 0) && 0 <= i) && p <= 1800) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 1800 <= k) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:32:43,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e716fec-4677-4ee3-adbc-8e9670d056f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE