./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 311ca7a26a816b19bf2f80b95fa3e10e4e95b99dff1e77c10bd7566050baa8ec --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:44,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:44,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:45,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:45,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:45,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:45,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:45,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:45,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:45,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:45,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:45,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:45,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:45,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:45,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:45,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:45,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:45,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:45,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:45,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:45,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:45,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:45,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:45,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:45,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:45,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:45,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:45,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:45,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:45,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:45,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:45,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:45,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:45,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:45,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:45,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:45,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:45,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:45,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:45,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:45,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:45,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:02:45,129 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:45,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:45,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:45,130 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:45,131 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:45,131 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:45,131 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:02:45,132 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:45,132 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:45,132 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:02:45,132 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:02:45,133 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:45,133 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:02:45,133 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:02:45,133 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:02:45,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:45,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:02:45,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:02:45,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:02:45,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:45,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:45,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:45,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:45,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:45,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:02:45,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:45,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:45,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:45,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:45,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:45,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:45,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:45,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:45,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:45,140 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:02:45,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:02:45,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:45,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:45,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:45,141 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311ca7a26a816b19bf2f80b95fa3e10e4e95b99dff1e77c10bd7566050baa8ec [2021-11-07 02:02:45,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:45,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:45,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:45,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:45,538 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:45,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/loop-acceleration/simple_1-1.c [2021-11-07 02:02:45,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/data/a42bae1b3/601d5fb29f194116b3d9b4e9e04664bd/FLAGd9a49a3ea [2021-11-07 02:02:46,175 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:46,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/sv-benchmarks/c/loop-acceleration/simple_1-1.c [2021-11-07 02:02:46,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/data/a42bae1b3/601d5fb29f194116b3d9b4e9e04664bd/FLAGd9a49a3ea [2021-11-07 02:02:46,548 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/data/a42bae1b3/601d5fb29f194116b3d9b4e9e04664bd [2021-11-07 02:02:46,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:46,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:46,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:46,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:46,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:46,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241f4219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46, skipping insertion in model container [2021-11-07 02:02:46,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:46,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:46,756 WARN L228 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_96e03318-42e3-47d4-80a7-f24563de1742/sv-benchmarks/c/loop-acceleration/simple_1-1.c[322,335] [2021-11-07 02:02:46,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:46,775 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:02:46,788 WARN L228 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_96e03318-42e3-47d4-80a7-f24563de1742/sv-benchmarks/c/loop-acceleration/simple_1-1.c[322,335] [2021-11-07 02:02:46,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:46,807 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:02:46,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46 WrapperNode [2021-11-07 02:02:46,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:46,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:46,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:02:46,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:02:46,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:46,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:02:46,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:02:46,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:02:46,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:02:46,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:02:46,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:02:46,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:02:46,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (1/1) ... [2021-11-07 02:02:46,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:46,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:46,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:02:46,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:02:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:02:46,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:02:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:02:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:02:47,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:02:47,294 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 02:02:47,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:47 BoogieIcfgContainer [2021-11-07 02:02:47,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:02:47,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:02:47,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:02:47,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:02:47,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:02:46" (1/3) ... [2021-11-07 02:02:47,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14367f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:47, skipping insertion in model container [2021-11-07 02:02:47,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:46" (2/3) ... [2021-11-07 02:02:47,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14367f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:47, skipping insertion in model container [2021-11-07 02:02:47,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:47" (3/3) ... [2021-11-07 02:02:47,312 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_1-1.c [2021-11-07 02:02:47,322 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:02:47,322 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:02:47,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:02:47,397 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:02:47,397 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:02:47,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2021-11-07 02:02:47,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:02:47,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:47,421 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:02:47,421 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:47,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1818790, now seen corresponding path program 1 times [2021-11-07 02:02:47,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:47,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366737113] [2021-11-07 02:02:47,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:47,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:47,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:47,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366737113] [2021-11-07 02:02:47,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366737113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:47,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:47,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:02:47,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577571272] [2021-11-07 02:02:47,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:02:47,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:02:47,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:02:47,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:02:47,748 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2021-11-07 02:02:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:47,770 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-11-07 02:02:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:02:47,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 [2021-11-07 02:02:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:47,781 INFO L225 Difference]: With dead ends: 13 [2021-11-07 02:02:47,782 INFO L226 Difference]: Without dead ends: 6 [2021-11-07 02:02:47,785 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:02:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-11-07 02:02:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-07 02:02:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-07 02:02:47,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-11-07 02:02:47,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:47,820 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-11-07 02:02:47,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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) [2021-11-07 02:02:47,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-07 02:02:47,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:02:47,821 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:47,821 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:02:47,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:02:47,822 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:47,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:47,823 INFO L85 PathProgramCache]: Analyzing trace with hash 55770291, now seen corresponding path program 1 times [2021-11-07 02:02:47,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:47,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507266690] [2021-11-07 02:02:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:47,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:47,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:47,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507266690] [2021-11-07 02:02:47,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507266690] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:02:47,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761980312] [2021-11-07 02:02:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:47,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:47,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:47,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:02:47,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:02:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:48,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:02:48,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:48,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:48,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:48,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761980312] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:02:48,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [536490612] [2021-11-07 02:02:48,210 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-07 02:02:48,210 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:02:48,216 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:02:48,222 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:02:48,222 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:02:48,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:02:48,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:02:48,270 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:02:48,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:02:48,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 02:02:48,299 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-11-07 02:02:48,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:02:48,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:02:48,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:02:48,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:02:48,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:48,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:02:48,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:02:48,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:02:48,418 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:02:48,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,438 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:02:48,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:02:48,445 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 02:02:48,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-07 02:02:48,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:48,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-07 02:02:48,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:48,788 INFO L180 QuantifierPusher]: treesize reduction 30, result has 58.3 percent of original size [2021-11-07 02:02:48,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:02:48,808 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:02:49,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:02:49,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:02:49,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-07 02:02:49,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024517297] [2021-11-07 02:02:49,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:02:49,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:02:49,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:02:49,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:02:49,209 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:49,261 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-07 02:02:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:02:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 02:02:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:49,262 INFO L225 Difference]: With dead ends: 12 [2021-11-07 02:02:49,262 INFO L226 Difference]: Without dead ends: 9 [2021-11-07 02:02:49,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:02:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-07 02:02:49,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-07 02:02:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2021-11-07 02:02:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-07 02:02:49,266 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-11-07 02:02:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:49,267 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-07 02:02:49,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:49,267 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-07 02:02:49,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:02:49,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:49,268 INFO L513 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2021-11-07 02:02:49,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:49,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-07 02:02:49,491 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:49,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1307517978, now seen corresponding path program 2 times [2021-11-07 02:02:49,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:49,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058077171] [2021-11-07 02:02:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:49,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:49,639 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:49,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058077171] [2021-11-07 02:02:49,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058077171] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:02:49,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578092722] [2021-11-07 02:02:49,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:02:49,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:49,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:49,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:02:49,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 02:02:49,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 02:02:49,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:02:49,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:02:49,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:49,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:49,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578092722] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:02:49,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [24243579] [2021-11-07 02:02:49,986 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-07 02:02:49,987 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:02:49,987 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:02:49,987 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:02:49,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:02:49,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:49,996 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:02:49,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:49,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:02:49,998 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:02:49,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:49,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:02:50,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 02:02:50,007 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 21=[|v_#valid_11|]} [2021-11-07 02:02:50,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:02:50,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:02:50,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:02:50,021 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:02:50,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:50,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:02:50,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:02:50,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:02:50,053 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:02:50,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:02:50,064 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:02:50,064 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 02:02:50,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-07 02:02:50,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:50,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-07 02:02:50,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:50,205 INFO L180 QuantifierPusher]: treesize reduction 30, result has 58.3 percent of original size [2021-11-07 02:02:50,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:02:50,215 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:02:50,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:02:50,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:02:50,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-07 02:02:50,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027872097] [2021-11-07 02:02:50,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:02:50,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:02:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:02:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:02:50,527 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:50,939 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-07 02:02:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:02:50,940 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 02:02:50,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:50,941 INFO L225 Difference]: With dead ends: 18 [2021-11-07 02:02:50,941 INFO L226 Difference]: Without dead ends: 15 [2021-11-07 02:02:50,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:02:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-07 02:02:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-07 02:02:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-07 02:02:50,946 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-11-07 02:02:50,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:50,946 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-07 02:02:50,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-07 02:02:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:02:50,947 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:50,947 INFO L513 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2021-11-07 02:02:50,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 02:02:51,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:51,158 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:51,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1742587706, now seen corresponding path program 3 times [2021-11-07 02:02:51,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:51,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407981644] [2021-11-07 02:02:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:51,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:51,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:51,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407981644] [2021-11-07 02:02:51,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407981644] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:02:51,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426058] [2021-11-07 02:02:51,394 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 02:02:51,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:51,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:51,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:02:51,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 02:02:51,455 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 02:02:51,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:02:51,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 02:02:51,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:51,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:51,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426058] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:02:51,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [714157582] [2021-11-07 02:02:51,939 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-07 02:02:51,939 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:02:51,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:02:51,939 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:02:51,940 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:02:51,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:51,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:02:51,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:51,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:02:51,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:02:51,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:51,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:02:51,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 02:02:51,972 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 21=[|v_#valid_12|]} [2021-11-07 02:02:51,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:02:51,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:51,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:02:51,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:51,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:02:51,985 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:02:51,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:51,991 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:51,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:51,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:52,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:52,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:52,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:52,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:02:52,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:02:52,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:52,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:02:52,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:52,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:02:52,021 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:02:52,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:52,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:52,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:02:52,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:02:52,037 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 02:02:52,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:52,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:02:52,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:52,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-07 02:02:52,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:02:52,153 INFO L180 QuantifierPusher]: treesize reduction 30, result has 58.3 percent of original size [2021-11-07 02:02:52,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:02:52,163 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:02:52,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:02:52,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:02:52,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2021-11-07 02:02:52,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253286341] [2021-11-07 02:02:52,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 02:02:52,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:02:52,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 02:02:52,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2021-11-07 02:02:52,499 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 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) [2021-11-07 02:02:58,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:58,063 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-11-07 02:02:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 02:02:58,064 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 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 14 [2021-11-07 02:02:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:58,065 INFO L225 Difference]: With dead ends: 30 [2021-11-07 02:02:58,065 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 02:02:58,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=449, Invalid=957, Unknown=0, NotChecked=0, Total=1406 [2021-11-07 02:02:58,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 02:02:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-07 02:02:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-11-07 02:02:58,070 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2021-11-07 02:02:58,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:58,071 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-11-07 02:02:58,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 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) [2021-11-07 02:02:58,071 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-11-07 02:02:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 02:02:58,072 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:58,072 INFO L513 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2021-11-07 02:02:58,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:58,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-07 02:02:58,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:58,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:58,273 INFO L85 PathProgramCache]: Analyzing trace with hash 297761414, now seen corresponding path program 4 times [2021-11-07 02:02:58,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:58,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044055208] [2021-11-07 02:02:58,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:58,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:58,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:58,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044055208] [2021-11-07 02:02:58,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044055208] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:02:58,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290765271] [2021-11-07 02:02:58,815 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 02:02:58,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:58,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:58,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:02:58,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 02:02:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:58,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-07 02:02:58,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:59,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:00,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290765271] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:03:00,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099357977] [2021-11-07 02:03:00,505 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-07 02:03:00,505 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:03:00,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:03:00,506 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:03:00,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:03:00,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:03:00,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:03:00,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:03:00,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:03:00,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 02:03:00,531 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 21=[|v_#valid_13|]} [2021-11-07 02:03:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:03:00,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:03:00,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:03:00,544 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:03:00,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:00,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:03:00,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:03:00,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:03:00,584 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:03:00,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:03:00,596 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:03:00,598 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 02:03:00,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:03:00,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:03:00,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-07 02:03:00,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:03:00,713 INFO L180 QuantifierPusher]: treesize reduction 30, result has 58.3 percent of original size [2021-11-07 02:03:00,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:03:00,721 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:03:01,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:03:01,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:03:01,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2021-11-07 02:03:01,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449241722] [2021-11-07 02:03:01,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-07 02:03:01,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:03:01,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-07 02:03:01,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=1973, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 02:03:01,224 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 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) [2021-11-07 02:05:48,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:48,540 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2021-11-07 02:05:48,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-07 02:05:48,540 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-07 02:05:48,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:48,542 INFO L225 Difference]: With dead ends: 54 [2021-11-07 02:05:48,542 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 02:05:48,544 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 168.9s TimeCoverageRelationStatistics Valid=1751, Invalid=3644, Unknown=7, NotChecked=0, Total=5402 [2021-11-07 02:05:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 02:05:48,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-07 02:05:48,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 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) [2021-11-07 02:05:48,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-11-07 02:05:48,553 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2021-11-07 02:05:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:48,554 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-11-07 02:05:48,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 states have internal predecessors, (52), 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) [2021-11-07 02:05:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-11-07 02:05:48,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:05:48,556 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:48,556 INFO L513 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1] [2021-11-07 02:05:48,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:48,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:05:48,778 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:05:48,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:48,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1227628038, now seen corresponding path program 5 times [2021-11-07 02:05:48,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:05:48,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086691979] [2021-11-07 02:05:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:48,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:05:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:50,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:05:50,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086691979] [2021-11-07 02:05:50,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086691979] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:05:50,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548900940] [2021-11-07 02:05:50,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:05:50,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:05:50,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:05:50,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:05:50,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e03318-42e3-47d4-80a7-f24563de1742/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 02:05:51,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2021-11-07 02:05:51,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:05:51,565 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-07 02:05:51,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:51,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:56,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548900940] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:56,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1610017962] [2021-11-07 02:05:56,559 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-07 02:05:56,559 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:05:56,559 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:05:56,559 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:05:56,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:05:56,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:05:56,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:05:56,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:05:56,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:05:56,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 02:05:56,588 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-11-07 02:05:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:05:56,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:05:56,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:05:56,600 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:05:56,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,604 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:05:56,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:05:56,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:05:56,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:05:56,628 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:05:56,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,631 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:05:56,634 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:05:56,635 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 02:05:56,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 02:05:56,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:56,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-07 02:05:56,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:05:56,719 INFO L180 QuantifierPusher]: treesize reduction 30, result has 58.3 percent of original size [2021-11-07 02:05:56,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:05:56,728 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:05:57,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:05:57,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:05:57,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2021-11-07 02:05:57,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823568804] [2021-11-07 02:05:57,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2021-11-07 02:05:57,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:05:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-11-07 02:05:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2503, Invalid=7397, Unknown=0, NotChecked=0, Total=9900 [2021-11-07 02:05:57,450 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 97 states, 97 states have (on average 1.0309278350515463) internal successors, (100), 96 states have internal predecessors, (100), 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) [2021-11-07 02:06:00,575 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 82) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 76) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 84) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 90) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 86) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 78) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 80) 4294967296) 268435455) (< (mod (+ 88 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ 92 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:06:02,594 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 82) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 76) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 84) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 90) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 86) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 78) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 80) 4294967296) 268435455) (< (mod (+ 88 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:07:17,312 WARN L207 SmtUtils]: Spent 15.02 s on a formula simplification. DAG size of input: 182 DAG size of output: 10 [2021-11-07 02:07:19,335 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 82) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 76) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 84) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 86) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 78) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 80) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:08:42,192 WARN L207 SmtUtils]: Spent 13.57 s on a formula simplification. DAG size of input: 174 DAG size of output: 10 [2021-11-07 02:08:44,207 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 82) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 76) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 78) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 80) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:08:46,217 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 76) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 78) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 80) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:08:48,226 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 76) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 78) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:10:00,355 WARN L207 SmtUtils]: Spent 9.08 s on a formula simplification. DAG size of input: 158 DAG size of output: 10 [2021-11-07 02:10:02,390 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 74) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:10:04,401 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 72) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:10:06,411 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 70) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 68) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:11:13,436 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ 66 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 62) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 64) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 60) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:12:13,210 WARN L207 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 134 DAG size of output: 10 [2021-11-07 02:13:28,923 WARN L207 SmtUtils]: Spent 14.41 s on a formula simplification. DAG size of input: 130 DAG size of output: 10 [2021-11-07 02:14:34,226 WARN L207 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 126 DAG size of output: 10 [2021-11-07 02:14:36,260 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ c_ULTIMATE.start_main_~x~0 30) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 14) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 16) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 44) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 4) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 12) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 54) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 10) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 18) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 26) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 28) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 48) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 36) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 32) 4294967296) 268435455) (< (mod (+ 40 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 46) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 2) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 8) 4294967296) 268435455) (< (mod (+ 56 c_ULTIMATE.start_main_~x~0) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 52) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 58) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 38) 4294967296) 268435455) (< (mod c_ULTIMATE.start_main_~x~0 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 50) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 24) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 20) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 22) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 34) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 6) 4294967296) 268435455) (< (mod (+ c_ULTIMATE.start_main_~x~0 42) 4294967296) 268435455)) is different from false [2021-11-07 02:15:45,819 WARN L207 SmtUtils]: Spent 5.26 s on a formula simplification. DAG size of input: 118 DAG size of output: 10