./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:32:41,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:32:41,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:32:41,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:32:41,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:32:41,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:32:41,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:32:41,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:32:41,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:32:41,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:32:41,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:32:41,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:32:41,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:32:41,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:32:41,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:32:41,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:32:41,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:32:41,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:32:41,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:32:41,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:32:41,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:32:41,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:32:41,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:32:41,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:32:41,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:32:41,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:32:41,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:32:41,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:32:41,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:32:41,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:32:41,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:32:41,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:32:41,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:32:41,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:32:41,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:32:41,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:32:41,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:32:41,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:32:41,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:32:41,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:32:41,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:32:41,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:32:41,328 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:32:41,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:32:41,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:32:41,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:32:41,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:32:41,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:32:41,331 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:32:41,332 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:32:41,332 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:32:41,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:32:41,333 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:32:41,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:32:41,334 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:32:41,334 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:32:41,335 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:32:41,335 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:32:41,335 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:32:41,336 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:32:41,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:32:41,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:32:41,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:32:41,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:32:41,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:32:41,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:32:41,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:32:41,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:32:41,346 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:32:41,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:32:41,347 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:32:41,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:32:41,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:32:41,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:32:41,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:41,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:32:41,349 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:32:41,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:32:41,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:32:41,350 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:32:41,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:32:41,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:32:41,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:32:41,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2022-11-03 02:32:41,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:32:41,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:32:41,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:32:41,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:32:41,762 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:32:41,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2022-11-03 02:32:41,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/data/fcf269bf6/f2abc5a088ef447f8001d16357729cb4/FLAG2b488ef12 [2022-11-03 02:32:42,316 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:32:42,317 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2022-11-03 02:32:42,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/data/fcf269bf6/f2abc5a088ef447f8001d16357729cb4/FLAG2b488ef12 [2022-11-03 02:32:42,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/data/fcf269bf6/f2abc5a088ef447f8001d16357729cb4 [2022-11-03 02:32:42,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:32:42,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:32:42,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:42,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:32:42,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:32:42,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:42" (1/1) ... [2022-11-03 02:32:42,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a441801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:42, skipping insertion in model container [2022-11-03 02:32:42,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:42" (1/1) ... [2022-11-03 02:32:42,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:32:42,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:32:42,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2022-11-03 02:32:42,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:43,003 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:32:43,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2022-11-03 02:32:43,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:43,038 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:32:43,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43 WrapperNode [2022-11-03 02:32:43,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:43,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:43,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:32:43,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:32:43,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,076 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-11-03 02:32:43,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:43,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:32:43,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:32:43,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:32:43,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,113 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:32:43,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:32:43,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:32:43,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:32:43,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (1/1) ... [2022-11-03 02:32:43,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:43,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:43,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:32:43,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:32:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:32:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:32:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:32:43,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:32:43,322 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:32:43,325 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:32:43,505 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:32:43,532 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:32:43,534 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:32:43,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:43 BoogieIcfgContainer [2022-11-03 02:32:43,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:32:43,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:32:43,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:32:43,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:32:43,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:32:42" (1/3) ... [2022-11-03 02:32:43,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502d76f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:43, skipping insertion in model container [2022-11-03 02:32:43,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:43" (2/3) ... [2022-11-03 02:32:43,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502d76f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:43, skipping insertion in model container [2022-11-03 02:32:43,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:43" (3/3) ... [2022-11-03 02:32:43,549 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2022-11-03 02:32:43,571 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:32:43,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:32:43,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:32:43,670 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@300686ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:32:43,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:32:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:32:43,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:43,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:32:43,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:43,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:43,698 INFO L85 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2022-11-03 02:32:43,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:43,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155413587] [2022-11-03 02:32:43,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:43,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:43,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:43,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155413587] [2022-11-03 02:32:43,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155413587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:43,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:43,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:32:43,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171296784] [2022-11-03 02:32:43,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:43,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:32:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:44,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:32:44,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:44,018 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:44,086 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2022-11-03 02:32:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:32:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:32:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:44,097 INFO L225 Difference]: With dead ends: 16 [2022-11-03 02:32:44,111 INFO L226 Difference]: Without dead ends: 7 [2022-11-03 02:32:44,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:44,117 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:44,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:32:44,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-03 02:32:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-03 02:32:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-03 02:32:44,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-11-03 02:32:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:44,149 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-03 02:32:44,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:44,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-11-03 02:32:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:32:44,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:44,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:32:44,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:32:44,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:44,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1839242300, now seen corresponding path program 1 times [2022-11-03 02:32:44,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:44,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394513132] [2022-11-03 02:32:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:44,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:44,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:44,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394513132] [2022-11-03 02:32:44,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394513132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:44,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819060100] [2022-11-03 02:32:44,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:44,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:44,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:44,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:44,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:32:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:44,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:32:44,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:44,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:44,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819060100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:44,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1019641957] [2022-11-03 02:32:44,415 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:32:44,416 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:44,420 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:44,426 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:44,427 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:32:44,647 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:32:44,764 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '80#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:32:44,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:32:44,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:44,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-03 02:32:44,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247517377] [2022-11-03 02:32:44,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:44,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:32:44,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:32:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:32:44,769 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:44,787 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-03 02:32:44,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:32:44,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:32:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:44,789 INFO L225 Difference]: With dead ends: 13 [2022-11-03 02:32:44,789 INFO L226 Difference]: Without dead ends: 10 [2022-11-03 02:32:44,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:32:44,792 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:44,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:32:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-03 02:32:44,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-03 02:32:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-03 02:32:44,796 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2022-11-03 02:32:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:44,796 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-03 02:32:44,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-03 02:32:44,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:32:44,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:44,798 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-03 02:32:44,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:45,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-03 02:32:45,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1390313566, now seen corresponding path program 2 times [2022-11-03 02:32:45,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:45,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803534629] [2022-11-03 02:32:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:45,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:45,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803534629] [2022-11-03 02:32:45,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803534629] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:45,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716452009] [2022-11-03 02:32:45,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:32:45,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:45,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:45,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:45,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:32:45,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:32:45,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:32:45,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:32:45,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:45,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:45,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716452009] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:45,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [42302708] [2022-11-03 02:32:45,406 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:32:45,406 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:45,406 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:45,407 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:45,407 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:32:45,513 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:32:45,651 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '177#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:32:45,651 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:32:45,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:45,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-11-03 02:32:45,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616478799] [2022-11-03 02:32:45,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:45,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:32:45,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:32:45,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:32:45,657 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:45,710 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2022-11-03 02:32:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:32:45,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:32:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:45,713 INFO L225 Difference]: With dead ends: 19 [2022-11-03 02:32:45,713 INFO L226 Difference]: Without dead ends: 16 [2022-11-03 02:32:45,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:32:45,718 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:45,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:32:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-03 02:32:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-03 02:32:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-03 02:32:45,738 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-11-03 02:32:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:45,739 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-03 02:32:45,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-03 02:32:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:32:45,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:45,743 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1] [2022-11-03 02:32:45,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:45,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:45,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:45,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:45,958 INFO L85 PathProgramCache]: Analyzing trace with hash -955493474, now seen corresponding path program 3 times [2022-11-03 02:32:45,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:45,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171906872] [2022-11-03 02:32:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:45,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:46,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:46,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171906872] [2022-11-03 02:32:46,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171906872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:46,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118753816] [2022-11-03 02:32:46,299 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:32:46,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:46,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:46,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:46,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:32:46,386 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:32:46,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:32:46,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:32:46,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:46,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:46,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118753816] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:46,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [46265192] [2022-11-03 02:32:46,746 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:32:46,750 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:46,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:46,751 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:46,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:32:46,852 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:32:46,995 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '346#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:32:46,995 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:32:46,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:46,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2022-11-03 02:32:47,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125289360] [2022-11-03 02:32:47,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:47,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 02:32:47,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:47,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 02:32:47,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=469, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:32:47,004 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:47,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:47,070 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2022-11-03 02:32:47,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:32:47,070 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.125) internal successors, (27), 24 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) Word has length 15 [2022-11-03 02:32:47,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:47,072 INFO L225 Difference]: With dead ends: 31 [2022-11-03 02:32:47,072 INFO L226 Difference]: Without dead ends: 28 [2022-11-03 02:32:47,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=287, Invalid=469, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:32:47,086 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:47,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:32:47,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-03 02:32:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-03 02:32:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-11-03 02:32:47,098 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 15 [2022-11-03 02:32:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:47,098 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-11-03 02:32:47,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:47,099 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-11-03 02:32:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:32:47,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:47,101 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1] [2022-11-03 02:32:47,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 02:32:47,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:47,311 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:47,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash -643192290, now seen corresponding path program 4 times [2022-11-03 02:32:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:47,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935137123] [2022-11-03 02:32:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:47,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:47,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935137123] [2022-11-03 02:32:47,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935137123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:47,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361480775] [2022-11-03 02:32:47,918 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:32:47,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:47,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:47,919 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:47,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:32:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:47,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:32:47,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:48,097 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:48,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:49,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361480775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:49,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [554799614] [2022-11-03 02:32:49,030 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:32:49,031 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:49,031 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:49,031 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:49,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:32:49,148 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:32:49,339 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '659#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:32:49,339 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:32:49,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:49,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2022-11-03 02:32:49,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663192115] [2022-11-03 02:32:49,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:49,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-03 02:32:49,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:49,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-03 02:32:49,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1139, Invalid=1513, Unknown=0, NotChecked=0, Total=2652 [2022-11-03 02:32:49,342 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 48 states, 48 states have (on average 1.0625) internal successors, (51), 48 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) [2022-11-03 02:32:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:49,461 INFO L93 Difference]: Finished difference Result 55 states and 78 transitions. [2022-11-03 02:32:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 02:32:49,461 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.0625) internal successors, (51), 48 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) Word has length 27 [2022-11-03 02:32:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:49,462 INFO L225 Difference]: With dead ends: 55 [2022-11-03 02:32:49,463 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 02:32:49,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1139, Invalid=1513, Unknown=0, NotChecked=0, Total=2652 [2022-11-03 02:32:49,465 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:49,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:32:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 02:32:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 02:32:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 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) [2022-11-03 02:32:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2022-11-03 02:32:49,474 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 27 [2022-11-03 02:32:49,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:49,474 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2022-11-03 02:32:49,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.0625) internal successors, (51), 48 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) [2022-11-03 02:32:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2022-11-03 02:32:49,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-03 02:32:49,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:49,476 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1] [2022-11-03 02:32:49,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:49,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:49,695 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:49,696 INFO L85 PathProgramCache]: Analyzing trace with hash -870639842, now seen corresponding path program 5 times [2022-11-03 02:32:49,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:49,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333353843] [2022-11-03 02:32:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:49,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:51,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:51,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333353843] [2022-11-03 02:32:51,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333353843] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:51,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442078770] [2022-11-03 02:32:51,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:32:51,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:51,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:51,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:51,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:32:51,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2022-11-03 02:32:51,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:32:51,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 02:32:51,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:51,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:32:55,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442078770] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:55,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1369076617] [2022-11-03 02:32:55,271 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:32:55,271 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:55,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:55,272 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:55,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:32:55,331 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:32:55,565 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1260#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:32:55,565 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:32:55,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:55,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2022-11-03 02:32:55,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899191206] [2022-11-03 02:32:55,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:55,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-03 02:32:55,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:55,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-03 02:32:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4571, Invalid=5329, Unknown=0, NotChecked=0, Total=9900 [2022-11-03 02:32:55,573 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 96 states, 96 states have (on average 1.03125) internal successors, (99), 96 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:55,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:55,851 INFO L93 Difference]: Finished difference Result 103 states and 150 transitions. [2022-11-03 02:32:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-03 02:32:55,852 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.03125) internal successors, (99), 96 states have internal predecessors, (99), 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 51 [2022-11-03 02:32:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:55,858 INFO L225 Difference]: With dead ends: 103 [2022-11-03 02:32:55,858 INFO L226 Difference]: Without dead ends: 100 [2022-11-03 02:32:55,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4571, Invalid=5329, Unknown=0, NotChecked=0, Total=9900 [2022-11-03 02:32:55,863 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:55,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:32:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-03 02:32:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-03 02:32:55,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 99 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) [2022-11-03 02:32:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2022-11-03 02:32:55,887 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 51 [2022-11-03 02:32:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:55,888 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2022-11-03 02:32:55,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 1.03125) internal successors, (99), 96 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:32:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2022-11-03 02:32:55,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 02:32:55,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:55,893 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1] [2022-11-03 02:32:55,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:56,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:32:56,107 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:56,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash -816254690, now seen corresponding path program 6 times [2022-11-03 02:32:56,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:56,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320661962] [2022-11-03 02:32:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:56,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:02,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:02,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320661962] [2022-11-03 02:33:02,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320661962] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:02,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85726331] [2022-11-03 02:33:02,270 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:33:02,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:02,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:02,279 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:02,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:33:02,414 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:33:02,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:33:02,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-03 02:33:02,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:02,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:07,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85726331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:33:07,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717495810] [2022-11-03 02:33:07,304 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:33:07,304 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:33:07,305 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:33:07,305 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:33:07,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:07,369 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:33:07,715 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2347#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:33:07,715 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:33:07,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:33:07,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 102 [2022-11-03 02:33:07,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689077546] [2022-11-03 02:33:07,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:33:07,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-03 02:33:07,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-03 02:33:07,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5162, Invalid=5968, Unknown=0, NotChecked=0, Total=11130 [2022-11-03 02:33:07,734 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand has 102 states, 102 states have (on average 1.0392156862745099) internal successors, (106), 102 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:07,927 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2022-11-03 02:33:07,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-03 02:33:07,927 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.0392156862745099) internal successors, (106), 102 states have internal predecessors, (106), 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 99 [2022-11-03 02:33:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:07,932 INFO L225 Difference]: With dead ends: 109 [2022-11-03 02:33:07,932 INFO L226 Difference]: Without dead ends: 106 [2022-11-03 02:33:07,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 198 SyntacticMatches, 90 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4867 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=5162, Invalid=5968, Unknown=0, NotChecked=0, Total=11130 [2022-11-03 02:33:07,937 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:07,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:07,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-03 02:33:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-03 02:33:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2022-11-03 02:33:07,965 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 99 [2022-11-03 02:33:07,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:07,968 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2022-11-03 02:33:07,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.0392156862745099) internal successors, (106), 102 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:07,968 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2022-11-03 02:33:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 02:33:07,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:07,972 INFO L195 NwaCegarLoop]: trace histogram [100, 1, 1, 1, 1, 1] [2022-11-03 02:33:08,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-03 02:33:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 02:33:08,190 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash -425773986, now seen corresponding path program 7 times [2022-11-03 02:33:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:08,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404626535] [2022-11-03 02:33:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:15,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:15,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404626535] [2022-11-03 02:33:15,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404626535] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:15,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299079058] [2022-11-03 02:33:15,622 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:33:15,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:15,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:15,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:15,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:33:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:15,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 205 conjunts are in the unsatisfiable core [2022-11-03 02:33:15,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:16,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:17,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299079058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:33:17,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [218110046] [2022-11-03 02:33:17,189 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-03 02:33:17,190 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:33:17,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:33:17,190 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:33:17,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:17,226 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:33:17,830 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3497#(and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= 200 |ULTIMATE.start_main_~j~0#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:33:17,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:33:17,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:33:17,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104, 104] total 105 [2022-11-03 02:33:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112719519] [2022-11-03 02:33:17,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:33:17,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-11-03 02:33:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-11-03 02:33:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=11553, Unknown=0, NotChecked=0, Total=11772 [2022-11-03 02:33:17,836 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 105 states, 105 states have (on average 1.019047619047619) internal successors, (107), 105 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:22,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:22,725 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2022-11-03 02:33:22,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-03 02:33:22,727 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 1.019047619047619) internal successors, (107), 105 states have internal predecessors, (107), 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 105 [2022-11-03 02:33:22,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:22,728 INFO L225 Difference]: With dead ends: 110 [2022-11-03 02:33:22,728 INFO L226 Difference]: Without dead ends: 107 [2022-11-03 02:33:22,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 305 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=224, Invalid=11766, Unknown=0, NotChecked=0, Total=11990 [2022-11-03 02:33:22,732 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 10610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 10610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:22,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 207 Invalid, 10610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10610 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 02:33:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-03 02:33:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-03 02:33:22,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.009433962264151) internal successors, (107), 106 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2022-11-03 02:33:22,757 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 105 [2022-11-03 02:33:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:22,759 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2022-11-03 02:33:22,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 1.019047619047619) internal successors, (107), 105 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:22,760 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2022-11-03 02:33:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 02:33:22,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:22,773 INFO L195 NwaCegarLoop]: trace histogram [101, 1, 1, 1, 1, 1] [2022-11-03 02:33:22,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:22,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:22,995 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash -314675012, now seen corresponding path program 8 times [2022-11-03 02:33:22,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:22,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669763827] [2022-11-03 02:33:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:22,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 5151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:29,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:29,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669763827] [2022-11-03 02:33:29,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669763827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:29,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:29,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2022-11-03 02:33:29,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889622325] [2022-11-03 02:33:29,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:29,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-11-03 02:33:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-11-03 02:33:29,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2022-11-03 02:33:29,047 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand has 103 states, 103 states have (on average 1.029126213592233) internal successors, (106), 103 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:29,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:29,457 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2022-11-03 02:33:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-03 02:33:29,458 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 1.029126213592233) internal successors, (106), 103 states have internal predecessors, (106), 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 106 [2022-11-03 02:33:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:29,460 INFO L225 Difference]: With dead ends: 107 [2022-11-03 02:33:29,460 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:33:29,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2022-11-03 02:33:29,465 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:29,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:33:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:33:29,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:33:29,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:33:29,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2022-11-03 02:33:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:29,468 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:33:29,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 1.029126213592233) internal successors, (106), 103 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:33:29,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:33:29,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:33:29,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:33:29,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:33:31,758 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:33:31,761 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~j~0#1| 58) (<= |ULTIMATE.start_main_~i~0#1| 29) (<= 29 |ULTIMATE.start_main_~i~0#1|) (<= 58 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 37) (<= 37 |ULTIMATE.start_main_~i~0#1|) (<= 74 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 74)) (and (<= 34 |ULTIMATE.start_main_~j~0#1|) (<= 17 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 34) (<= |ULTIMATE.start_main_~i~0#1| 17)) (and (<= 51 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 51) (<= |ULTIMATE.start_main_~j~0#1| 102) (<= 102 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 54) (<= 54 |ULTIMATE.start_main_~j~0#1|) (<= 27 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 27)) (and (<= 98 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 196) (<= 196 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| 99)) (and (<= |ULTIMATE.start_main_~j~0#1| 66) (<= 66 |ULTIMATE.start_main_~j~0#1|) (<= 33 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 33)) (and (<= 32 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 16) (<= |ULTIMATE.start_main_~j~0#1| 32) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 92) (<= 184 |ULTIMATE.start_main_~j~0#1|) (<= 92 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 184)) (and (<= |ULTIMATE.start_main_~j~0#1| 190) (< |ULTIMATE.start_main_~i~0#1| 96) (<= 95 |ULTIMATE.start_main_~i~0#1|) (<= 190 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 10) (<= 5 |ULTIMATE.start_main_~i~0#1|) (<= 10 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 5)) (and (<= |ULTIMATE.start_main_~i~0#1| 22) (<= |ULTIMATE.start_main_~j~0#1| 44) (<= 44 |ULTIMATE.start_main_~j~0#1|) (<= 22 |ULTIMATE.start_main_~i~0#1|)) (and (<= 55 |ULTIMATE.start_main_~i~0#1|) (<= 110 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 55) (<= |ULTIMATE.start_main_~j~0#1| 110)) (and (<= |ULTIMATE.start_main_~i~0#1| 65) (<= 130 |ULTIMATE.start_main_~j~0#1|) (<= 65 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 130)) (and (<= |ULTIMATE.start_main_~j~0#1| 170) (<= 170 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 85) (<= 85 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 48) (<= 48 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 24) (<= 24 |ULTIMATE.start_main_~i~0#1|)) (and (<= 30 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 30) (<= 60 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 60)) (and (<= |ULTIMATE.start_main_~j~0#1| 164) (<= 82 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 82) (<= 164 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 104) (<= |ULTIMATE.start_main_~i~0#1| 52) (<= 52 |ULTIMATE.start_main_~i~0#1|) (<= 104 |ULTIMATE.start_main_~j~0#1|)) (and (<= 116 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 58) (<= 58 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 116)) (and (<= |ULTIMATE.start_main_~j~0#1| 18) (<= 9 |ULTIMATE.start_main_~i~0#1|) (<= 18 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 9)) (and (<= |ULTIMATE.start_main_~j~0#1| 192) (<= 192 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| 97) (<= 96 |ULTIMATE.start_main_~i~0#1|)) (and (< |ULTIMATE.start_main_~i~0#1| 98) (<= 97 |ULTIMATE.start_main_~i~0#1|) (<= 194 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 194)) (and (<= |ULTIMATE.start_main_~j~0#1| 38) (<= |ULTIMATE.start_main_~i~0#1| 19) (<= 19 |ULTIMATE.start_main_~i~0#1|) (<= 38 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 64) (<= |ULTIMATE.start_main_~i~0#1| 32) (<= 64 |ULTIMATE.start_main_~j~0#1|) (<= 32 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 40) (<= 40 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 80) (<= 80 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 138) (<= |ULTIMATE.start_main_~i~0#1| 69) (<= 69 |ULTIMATE.start_main_~i~0#1|) (<= 138 |ULTIMATE.start_main_~j~0#1|)) (and (<= 35 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 70) (<= 70 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 35)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (<= |ULTIMATE.start_main_~j~0#1| 120) (<= 60 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 60) (<= 120 |ULTIMATE.start_main_~j~0#1|)) (and (<= 100 |ULTIMATE.start_main_~j~0#1|) (<= 50 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 50)) (and (<= |ULTIMATE.start_main_~j~0#1| 4) (<= |ULTIMATE.start_main_~i~0#1| 2) (<= 2 |ULTIMATE.start_main_~i~0#1|) (<= 4 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 83) (<= 166 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 166) (<= 83 |ULTIMATE.start_main_~i~0#1|)) (and (<= 146 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 146) (<= |ULTIMATE.start_main_~i~0#1| 73) (<= 73 |ULTIMATE.start_main_~i~0#1|)) (and (<= 76 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 76) (<= |ULTIMATE.start_main_~j~0#1| 152) (<= 152 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 30) (<= 15 |ULTIMATE.start_main_~i~0#1|) (<= 30 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 15)) (and (<= |ULTIMATE.start_main_~j~0#1| 92) (<= |ULTIMATE.start_main_~i~0#1| 46) (<= 92 |ULTIMATE.start_main_~j~0#1|) (<= 46 |ULTIMATE.start_main_~i~0#1|)) (and (<= 162 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 162) (<= |ULTIMATE.start_main_~i~0#1| 81) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and (<= 160 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 160) (<= |ULTIMATE.start_main_~i~0#1| 80) (<= 80 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 156) (<= 156 |ULTIMATE.start_main_~j~0#1|) (<= 78 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 78)) (and (<= 66 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 132) (<= |ULTIMATE.start_main_~i~0#1| 66) (<= 132 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 118) (<= 59 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 59) (<= 118 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 45) (<= 45 |ULTIMATE.start_main_~i~0#1|) (<= 90 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 90)) (and (<= |ULTIMATE.start_main_~j~0#1| 50) (<= 50 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 25) (<= 25 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 75) (<= 150 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 150) (<= 75 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 172) (<= |ULTIMATE.start_main_~i~0#1| 86) (<= 172 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 41) (<= |ULTIMATE.start_main_~j~0#1| 82) (<= 82 |ULTIMATE.start_main_~j~0#1|) (<= 41 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 182) (<= 91 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 91) (<= 182 |ULTIMATE.start_main_~j~0#1|)) (and (<= 68 |ULTIMATE.start_main_~j~0#1|) (<= 34 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 68) (<= |ULTIMATE.start_main_~i~0#1| 34)) (and (<= 20 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 10) (<= 10 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 20)) (and (<= |ULTIMATE.start_main_~i~0#1| 3) (<= 3 |ULTIMATE.start_main_~i~0#1|) (<= 6 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 6)) (and (<= 148 |ULTIMATE.start_main_~j~0#1|) (<= 74 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 74) (<= |ULTIMATE.start_main_~j~0#1| 148)) (and (<= 64 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 64) (<= |ULTIMATE.start_main_~j~0#1| 128) (<= 128 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 77) (<= |ULTIMATE.start_main_~j~0#1| 154) (<= 77 |ULTIMATE.start_main_~i~0#1|) (<= 154 |ULTIMATE.start_main_~j~0#1|)) (and (<= 188 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 188) (<= 94 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 94)) (and (<= 100 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 200) (< 199 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 63) (<= 63 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 126) (<= 126 |ULTIMATE.start_main_~j~0#1|)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 79) (<= 158 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 158)) (and (<= |ULTIMATE.start_main_~j~0#1| 108) (<= 108 |ULTIMATE.start_main_~j~0#1|) (<= 54 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 54)) (and (<= |ULTIMATE.start_main_~i~0#1| 62) (<= |ULTIMATE.start_main_~j~0#1| 124) (<= 124 |ULTIMATE.start_main_~j~0#1|) (<= 62 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 87) (<= 87 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 174) (<= 174 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 61) (<= 122 |ULTIMATE.start_main_~j~0#1|) (<= 61 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 122)) (and (<= |ULTIMATE.start_main_~i~0#1| 67) (<= 134 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 134) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and (<= 47 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 47) (<= |ULTIMATE.start_main_~j~0#1| 94) (<= 94 |ULTIMATE.start_main_~j~0#1|)) (and (<= 26 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 52) (<= |ULTIMATE.start_main_~i~0#1| 26) (<= 52 |ULTIMATE.start_main_~j~0#1|)) (and (<= 49 |ULTIMATE.start_main_~i~0#1|) (<= 98 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 49) (<= |ULTIMATE.start_main_~j~0#1| 98)) (and (<= 42 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 42) (<= 84 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 84)) (and (<= 62 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 62) (<= |ULTIMATE.start_main_~i~0#1| 31) (<= 31 |ULTIMATE.start_main_~i~0#1|)) (and (<= 90 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 90) (<= |ULTIMATE.start_main_~j~0#1| 180) (<= 180 |ULTIMATE.start_main_~j~0#1|)) (and (<= 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 14) (<= |ULTIMATE.start_main_~j~0#1| 28) (<= 28 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 0)) (and (<= |ULTIMATE.start_main_~j~0#1| 140) (<= 140 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 70) (<= 70 |ULTIMATE.start_main_~i~0#1|)) (and (<= 21 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 42) (<= 42 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 21)) (and (<= |ULTIMATE.start_main_~i~0#1| 38) (<= 38 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 76) (<= 76 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 136) (<= 136 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 68) (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and (<= 93 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 186) (<= |ULTIMATE.start_main_~i~0#1| 93) (<= 186 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 6) (<= 12 |ULTIMATE.start_main_~j~0#1|) (<= 6 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 12)) (and (<= 16 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 8) (<= |ULTIMATE.start_main_~j~0#1| 16) (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and (<= 178 |ULTIMATE.start_main_~j~0#1|) (<= 89 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 89) (<= |ULTIMATE.start_main_~j~0#1| 178)) (and (<= 26 |ULTIMATE.start_main_~j~0#1|) (<= 13 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 13) (<= |ULTIMATE.start_main_~j~0#1| 26)) (and (<= |ULTIMATE.start_main_~i~0#1| 88) (<= 88 |ULTIMATE.start_main_~i~0#1|) (<= 176 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 176)) (and (<= |ULTIMATE.start_main_~i~0#1| 11) (<= |ULTIMATE.start_main_~j~0#1| 22) (<= 22 |ULTIMATE.start_main_~j~0#1|) (<= 11 |ULTIMATE.start_main_~i~0#1|)) (and (<= 43 |ULTIMATE.start_main_~i~0#1|) (<= 86 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 43) (<= |ULTIMATE.start_main_~j~0#1| 86)) (and (<= 12 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 24) (<= |ULTIMATE.start_main_~i~0#1| 12) (<= 24 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 198) (< |ULTIMATE.start_main_~i~0#1| 100) (<= 198 |ULTIMATE.start_main_~j~0#1|) (<= 99 |ULTIMATE.start_main_~i~0#1|)) (and (<= 84 |ULTIMATE.start_main_~i~0#1|) (<= 168 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 168) (<= |ULTIMATE.start_main_~i~0#1| 84)) (and (<= |ULTIMATE.start_main_~i~0#1| 56) (<= 112 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 112) (<= 56 |ULTIMATE.start_main_~i~0#1|)) (and (<= 7 |ULTIMATE.start_main_~i~0#1|) (<= 14 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 14) (<= |ULTIMATE.start_main_~i~0#1| 7)) (and (<= |ULTIMATE.start_main_~i~0#1| 57) (<= 57 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 114) (<= 114 |ULTIMATE.start_main_~j~0#1|)) (and (<= 44 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 88) (<= 88 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 44)) (and (<= |ULTIMATE.start_main_~i~0#1| 48) (<= 48 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 96) (<= 96 |ULTIMATE.start_main_~j~0#1|)) (and (<= 78 |ULTIMATE.start_main_~j~0#1|) (<= 39 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 78) (<= |ULTIMATE.start_main_~i~0#1| 39)) (and (<= |ULTIMATE.start_main_~i~0#1| 53) (<= 53 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 106) (<= 106 |ULTIMATE.start_main_~j~0#1|)) (and (<= 28 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 28) (<= |ULTIMATE.start_main_~j~0#1| 56) (<= 56 |ULTIMATE.start_main_~j~0#1|)) (and (<= 142 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 142) (<= |ULTIMATE.start_main_~i~0#1| 71) (<= 71 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 20) (<= 20 |ULTIMATE.start_main_~i~0#1|) (<= 40 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 40)) (and (<= |ULTIMATE.start_main_~j~0#1| 72) (<= 36 |ULTIMATE.start_main_~i~0#1|) (<= 72 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 36)) (and (<= |ULTIMATE.start_main_~i~0#1| 23) (<= 23 |ULTIMATE.start_main_~i~0#1|) (<= 46 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 46)) (and (<= 18 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 36) (<= |ULTIMATE.start_main_~i~0#1| 18) (<= 36 |ULTIMATE.start_main_~j~0#1|)) (and (<= 8 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 8) (<= |ULTIMATE.start_main_~i~0#1| 4) (<= 4 |ULTIMATE.start_main_~i~0#1|)) (and (<= 72 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 72) (<= 144 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 144))) [2022-11-03 02:33:31,762 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-11-03 02:33:31,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 02:33:31,762 INFO L902 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2022-11-03 02:33:31,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-11-03 02:33:31,763 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-11-03 02:33:31,763 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-03 02:33:31,763 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2022-11-03 02:33:31,767 INFO L444 BasicCegarLoop]: Path program histogram: [8, 1] [2022-11-03 02:33:31,769 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:33:31,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:33:31 BoogieIcfgContainer [2022-11-03 02:33:31,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:33:31,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:33:31,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:33:31,810 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:33:31,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:43" (3/4) ... [2022-11-03 02:33:31,813 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:33:31,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 02:33:31,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-03 02:33:31,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 02:33:31,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:33:31,858 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:33:31,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:33:31,859 INFO L158 Benchmark]: Toolchain (without parser) took 49155.76ms. Allocated memory was 119.5MB in the beginning and 302.0MB in the end (delta: 182.5MB). Free memory was 75.1MB in the beginning and 216.9MB in the end (delta: -141.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-03 02:33:31,859 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:33:31,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.98ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 94.9MB in the end (delta: -20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:33:31,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.13ms. Allocated memory is still 119.5MB. Free memory was 94.9MB in the beginning and 93.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:33:31,860 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 119.5MB. Free memory was 93.5MB in the beginning and 92.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:33:31,861 INFO L158 Benchmark]: RCFGBuilder took 418.81ms. Allocated memory is still 119.5MB. Free memory was 92.2MB in the beginning and 82.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:33:31,861 INFO L158 Benchmark]: TraceAbstraction took 48268.19ms. Allocated memory was 119.5MB in the beginning and 302.0MB in the end (delta: 182.5MB). Free memory was 81.6MB in the beginning and 220.1MB in the end (delta: -138.4MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. [2022-11-03 02:33:31,861 INFO L158 Benchmark]: Witness Printer took 49.30ms. Allocated memory is still 302.0MB. Free memory was 220.1MB in the beginning and 216.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:33:31,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.98ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 94.9MB in the end (delta: -20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.13ms. Allocated memory is still 119.5MB. Free memory was 94.9MB in the beginning and 93.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 119.5MB. Free memory was 93.5MB in the beginning and 92.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 418.81ms. Allocated memory is still 119.5MB. Free memory was 92.2MB in the beginning and 82.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 48268.19ms. Allocated memory was 119.5MB in the beginning and 302.0MB in the end (delta: 182.5MB). Free memory was 81.6MB in the beginning and 220.1MB in the end (delta: -138.4MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. * Witness Printer took 49.30ms. Allocated memory is still 302.0MB. Free memory was 220.1MB in the beginning and 216.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.1s, OverallIterations: 9, TraceHistogramMax: 101, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 262 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11465 IncrementalHoareTripleChecker+Invalid, 11576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 28 mSDtfsCounter, 11465 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1328 GetRequests, 723 SyntacticMatches, 95 SemanticMatches, 510 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5888 ImplicationChecksByTransitivity, 25.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=8, InterpolantAutomatonStates: 498, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1312 HoareAnnotationTreeSize, 2 FomulaSimplifications, 264 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 33.6s InterpolantComputationTime, 735 NumberOfCodeBlocks, 735 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 4151 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1644 ConjunctsInSsa, 394 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 5151/37896 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j <= 58 && i <= 29) && 29 <= i) && 58 <= j) || (((i <= 37 && 37 <= i) && 74 <= j) && j <= 74)) || (((34 <= j && 17 <= i) && j <= 34) && i <= 17)) || (((51 <= i && i <= 51) && j <= 102) && 102 <= j)) || (((j <= 54 && 54 <= j) && 27 <= i) && i <= 27)) || (((98 <= i && j <= 196) && 196 <= j) && i < 99)) || (((j <= 66 && 66 <= j) && 33 <= i) && i <= 33)) || (((32 <= j && i <= 16) && j <= 32) && 16 <= i)) || (((i <= 92 && 184 <= j) && 92 <= i) && j <= 184)) || (((j <= 190 && i < 96) && 95 <= i) && 190 <= j)) || (((j <= 10 && 5 <= i) && 10 <= j) && i <= 5)) || (((i <= 22 && j <= 44) && 44 <= j) && 22 <= i)) || (((55 <= i && 110 <= j) && i <= 55) && j <= 110)) || (((i <= 65 && 130 <= j) && 65 <= i) && j <= 130)) || (((j <= 170 && 170 <= j) && i <= 85) && 85 <= i)) || (((j <= 48 && 48 <= j) && i <= 24) && 24 <= i)) || (((30 <= i && i <= 30) && 60 <= j) && j <= 60)) || (((j <= 164 && 82 <= i) && i <= 82) && 164 <= j)) || (((j <= 104 && i <= 52) && 52 <= i) && 104 <= j)) || (((116 <= j && i <= 58) && 58 <= i) && j <= 116)) || (((j <= 18 && 9 <= i) && 18 <= j) && i <= 9)) || (((j <= 192 && 192 <= j) && i < 97) && 96 <= i)) || (((i < 98 && 97 <= i) && 194 <= j) && j <= 194)) || (((j <= 38 && i <= 19) && 19 <= i) && 38 <= j)) || (((j <= 64 && i <= 32) && 64 <= j) && 32 <= i)) || (((i <= 40 && 40 <= i) && j <= 80) && 80 <= j)) || (((j <= 138 && i <= 69) && 69 <= i) && 138 <= j)) || (((35 <= i && j <= 70) && 70 <= j) && i <= 35)) || (((1 <= i && 2 <= j) && j <= 2) && i <= 1)) || (((j <= 120 && 60 <= i) && i <= 60) && 120 <= j)) || (((100 <= j && 50 <= i) && j <= 100) && i <= 50)) || (((j <= 4 && i <= 2) && 2 <= i) && 4 <= j)) || (((i <= 83 && 166 <= j) && j <= 166) && 83 <= i)) || (((146 <= j && j <= 146) && i <= 73) && 73 <= i)) || (((76 <= i && i <= 76) && j <= 152) && 152 <= j)) || (((j <= 30 && 15 <= i) && 30 <= j) && i <= 15)) || (((j <= 92 && i <= 46) && 92 <= j) && 46 <= i)) || (((162 <= j && j <= 162) && i <= 81) && 81 <= i)) || (((160 <= j && j <= 160) && i <= 80) && 80 <= i)) || (((j <= 156 && 156 <= j) && 78 <= i) && i <= 78)) || (((66 <= i && j <= 132) && i <= 66) && 132 <= j)) || (((j <= 118 && 59 <= i) && i <= 59) && 118 <= j)) || (((i <= 45 && 45 <= i) && 90 <= j) && j <= 90)) || (((j <= 50 && 50 <= j) && i <= 25) && 25 <= i)) || (((i <= 75 && 150 <= j) && j <= 150) && 75 <= i)) || (((86 <= i && j <= 172) && i <= 86) && 172 <= j)) || (((i <= 41 && j <= 82) && 82 <= j) && 41 <= i)) || (((j <= 182 && 91 <= i) && i <= 91) && 182 <= j)) || (((68 <= j && 34 <= i) && j <= 68) && i <= 34)) || (((20 <= j && i <= 10) && 10 <= i) && j <= 20)) || (((i <= 3 && 3 <= i) && 6 <= j) && j <= 6)) || (((148 <= j && 74 <= i) && i <= 74) && j <= 148)) || (((64 <= i && i <= 64) && j <= 128) && 128 <= j)) || (((i <= 77 && j <= 154) && 77 <= i) && 154 <= j)) || (((188 <= j && j <= 188) && 94 <= i) && i <= 94)) || ((100 <= i && j <= 200) && 199 < j)) || (((i <= 63 && 63 <= i) && j <= 126) && 126 <= j)) || (((79 <= i && i <= 79) && 158 <= j) && j <= 158)) || (((j <= 108 && 108 <= j) && 54 <= i) && i <= 54)) || (((i <= 62 && j <= 124) && 124 <= j) && 62 <= i)) || (((i <= 87 && 87 <= i) && j <= 174) && 174 <= j)) || (((i <= 61 && 122 <= j) && 61 <= i) && j <= 122)) || (((i <= 67 && 134 <= j) && j <= 134) && 67 <= i)) || (((47 <= i && i <= 47) && j <= 94) && 94 <= j)) || (((26 <= i && j <= 52) && i <= 26) && 52 <= j)) || (((49 <= i && 98 <= j) && i <= 49) && j <= 98)) || (((42 <= i && i <= 42) && 84 <= j) && j <= 84)) || (((62 <= j && j <= 62) && i <= 31) && 31 <= i)) || (((90 <= i && i <= 90) && j <= 180) && 180 <= j)) || (((14 <= i && i <= 14) && j <= 28) && 28 <= j)) || (((i <= 0 && 0 <= j) && 0 <= i) && j <= 0)) || (((j <= 140 && 140 <= j) && i <= 70) && 70 <= i)) || (((21 <= i && j <= 42) && 42 <= j) && i <= 21)) || (((i <= 38 && 38 <= i) && j <= 76) && 76 <= j)) || (((j <= 136 && 136 <= j) && i <= 68) && 68 <= i)) || (((93 <= i && j <= 186) && i <= 93) && 186 <= j)) || (((i <= 6 && 12 <= j) && 6 <= i) && j <= 12)) || (((16 <= j && i <= 8) && j <= 16) && 8 <= i)) || (((178 <= j && 89 <= i) && i <= 89) && j <= 178)) || (((26 <= j && 13 <= i) && i <= 13) && j <= 26)) || (((i <= 88 && 88 <= i) && 176 <= j) && j <= 176)) || (((i <= 11 && j <= 22) && 22 <= j) && 11 <= i)) || (((43 <= i && 86 <= j) && i <= 43) && j <= 86)) || (((12 <= i && j <= 24) && i <= 12) && 24 <= j)) || (((j <= 198 && i < 100) && 198 <= j) && 99 <= i)) || (((84 <= i && 168 <= j) && j <= 168) && i <= 84)) || (((i <= 56 && 112 <= j) && j <= 112) && 56 <= i)) || (((7 <= i && 14 <= j) && j <= 14) && i <= 7)) || (((i <= 57 && 57 <= i) && j <= 114) && 114 <= j)) || (((44 <= i && j <= 88) && 88 <= j) && i <= 44)) || (((i <= 48 && 48 <= i) && j <= 96) && 96 <= j)) || (((78 <= j && 39 <= i) && j <= 78) && i <= 39)) || (((i <= 53 && 53 <= i) && j <= 106) && 106 <= j)) || (((28 <= i && i <= 28) && j <= 56) && 56 <= j)) || (((142 <= j && j <= 142) && i <= 71) && 71 <= i)) || (((i <= 20 && 20 <= i) && 40 <= j) && j <= 40)) || (((j <= 72 && 36 <= i) && 72 <= j) && i <= 36)) || (((i <= 23 && 23 <= i) && 46 <= j) && j <= 46)) || (((18 <= i && j <= 36) && i <= 18) && 36 <= j)) || (((8 <= j && j <= 8) && i <= 4) && 4 <= i)) || (((72 <= i && i <= 72) && 144 <= j) && j <= 144) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 02:33:31,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6311f3f-0932-47f8-9ebb-150c45f6f322/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE