./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur --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 ebdf8b0d6633d593d56778eaf5218135ab2be92cae14e75cdda2462494f96410 --- 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-38b53e6 [2022-11-25 22:13:24,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:13:24,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:13:24,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:13:24,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:13:24,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:13:24,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:13:24,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:13:24,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:13:24,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:13:24,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:13:24,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:13:24,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:13:24,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:13:24,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:13:24,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:13:24,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:13:24,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:13:24,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:13:24,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:13:24,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:13:24,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:13:24,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:13:24,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:13:24,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:13:24,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:13:24,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:13:24,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:13:24,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:13:24,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:13:24,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:13:24,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:13:24,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:13:24,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:13:24,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:13:24,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:13:24,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:13:24,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:13:24,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:13:24,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:13:24,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:13:24,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:13:24,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:13:24,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:13:24,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:13:24,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:13:24,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:13:24,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:13:24,165 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:13:24,165 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:13:24,165 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:13:24,165 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:13:24,165 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:13:24,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:13:24,166 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:13:24,166 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:13:24,166 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:13:24,166 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:13:24,166 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:13:24,167 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:13:24,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:13:24,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:13:24,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:13:24,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:13:24,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:13:24,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:13:24,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:13:24,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:13:24,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:13:24,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:13:24,170 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:13:24,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:13:24,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:13:24,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:13:24,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:13:24,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:13:24,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:13:24,175 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_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebdf8b0d6633d593d56778eaf5218135ab2be92cae14e75cdda2462494f96410 [2022-11-25 22:13:24,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:13:24,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:13:24,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:13:24,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:13:24,577 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:13:24,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c [2022-11-25 22:13:27,664 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:13:27,878 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:13:27,879 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c [2022-11-25 22:13:27,888 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/data/4c7bd6a9c/48af130f029a4cbeb3772f0b041613ab/FLAGd6dae8f5e [2022-11-25 22:13:27,903 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/data/4c7bd6a9c/48af130f029a4cbeb3772f0b041613ab [2022-11-25 22:13:27,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:13:27,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:13:27,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:13:27,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:13:27,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:13:27,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da3547a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27, skipping insertion in model container [2022-11-25 22:13:27,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:13:27,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:13:28,121 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c[490,503] [2022-11-25 22:13:28,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:13:28,162 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:13:28,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c[490,503] [2022-11-25 22:13:28,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:13:28,203 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:13:28,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28 WrapperNode [2022-11-25 22:13:28,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:13:28,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:13:28,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:13:28,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:13:28,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,249 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-11-25 22:13:28,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:13:28,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:13:28,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:13:28,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:13:28,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,275 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:13:28,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:13:28,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:13:28,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:13:28,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (1/1) ... [2022-11-25 22:13:28,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:13:28,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:28,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:13:28,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:13:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:13:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:13:28,383 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:13:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:13:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:13:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:13:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:13:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:13:28,449 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:13:28,452 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:13:28,666 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:13:28,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:13:28,778 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:13:28,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:13:28 BoogieIcfgContainer [2022-11-25 22:13:28,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:13:28,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:13:28,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:13:28,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:13:28,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:13:27" (1/3) ... [2022-11-25 22:13:28,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f347f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:13:28, skipping insertion in model container [2022-11-25 22:13:28,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:28" (2/3) ... [2022-11-25 22:13:28,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f347f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:13:28, skipping insertion in model container [2022-11-25 22:13:28,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:13:28" (3/3) ... [2022-11-25 22:13:28,811 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound2.c [2022-11-25 22:13:28,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:13:28,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:13:28,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:13:28,913 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;@48d7749a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:13:28,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:13:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:13:28,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 22:13:28,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:28,930 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:28,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:28,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash 966807424, now seen corresponding path program 1 times [2022-11-25 22:13:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:28,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771310978] [2022-11-25 22:13:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:29,136 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:29,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13808799] [2022-11-25 22:13:29,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:29,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:29,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:29,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:13:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:29,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:13:29,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 22:13:29,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:13:29,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771310978] [2022-11-25 22:13:29,322 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13808799] [2022-11-25 22:13:29,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13808799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:13:29,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:13:29,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:13:29,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938735029] [2022-11-25 22:13:29,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:29,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:13:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:13:29,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:13:29,389 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 22:13:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:29,453 INFO L93 Difference]: Finished difference Result 49 states and 78 transitions. [2022-11-25 22:13:29,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:13:29,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 26 [2022-11-25 22:13:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:29,466 INFO L225 Difference]: With dead ends: 49 [2022-11-25 22:13:29,467 INFO L226 Difference]: Without dead ends: 28 [2022-11-25 22:13:29,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:13:29,475 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:29,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:13:29,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-25 22:13:29,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-25 22:13:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:13:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2022-11-25 22:13:29,515 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 26 [2022-11-25 22:13:29,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:29,517 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions. [2022-11-25 22:13:29,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 22:13:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-11-25 22:13:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 22:13:29,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:29,520 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:29,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:29,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:13:29,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:29,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1643993843, now seen corresponding path program 1 times [2022-11-25 22:13:29,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:29,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423404326] [2022-11-25 22:13:29,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:29,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:29,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625109145] [2022-11-25 22:13:29,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:29,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:29,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:29,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:29,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:13:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:29,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:13:29,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 22:13:29,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 22:13:30,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:30,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423404326] [2022-11-25 22:13:30,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:30,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625109145] [2022-11-25 22:13:30,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625109145] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:13:30,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1646020041] [2022-11-25 22:13:30,129 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-25 22:13:30,130 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:13:30,134 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:13:30,140 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:13:30,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:13:31,278 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:13:31,306 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:13:32,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1646020041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:13:32,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:13:32,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 5] total 14 [2022-11-25 22:13:32,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197821903] [2022-11-25 22:13:32,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:32,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:13:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:13:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:13:32,408 INFO L87 Difference]: Start difference. First operand 28 states and 39 transitions. Second operand has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-25 22:13:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:32,643 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-11-25 22:13:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 22:13:32,644 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2022-11-25 22:13:32,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:32,645 INFO L225 Difference]: With dead ends: 38 [2022-11-25 22:13:32,645 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 22:13:32,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:13:32,647 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:32,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 48 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:13:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 22:13:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 22:13:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:13:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-11-25 22:13:32,667 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 27 [2022-11-25 22:13:32,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:32,668 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-11-25 22:13:32,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-25 22:13:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-11-25 22:13:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 22:13:32,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:32,670 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:32,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:32,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:32,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:32,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:32,877 INFO L85 PathProgramCache]: Analyzing trace with hash -575116102, now seen corresponding path program 1 times [2022-11-25 22:13:32,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:32,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284236477] [2022-11-25 22:13:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:32,892 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:32,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663455055] [2022-11-25 22:13:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:32,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:32,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:32,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:32,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:13:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:32,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 22:13:32,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 22:13:33,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 22:13:33,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:33,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284236477] [2022-11-25 22:13:33,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:33,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663455055] [2022-11-25 22:13:33,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663455055] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:13:33,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:13:33,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-25 22:13:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372437562] [2022-11-25 22:13:33,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:33,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:13:33,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:13:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:13:33,134 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 22:13:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:33,205 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-11-25 22:13:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:13:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 28 [2022-11-25 22:13:33,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:33,206 INFO L225 Difference]: With dead ends: 36 [2022-11-25 22:13:33,207 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 22:13:33,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:13:33,208 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:33,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 101 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:13:33,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 22:13:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 22:13:33,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:13:33,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-11-25 22:13:33,228 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 28 [2022-11-25 22:13:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:33,229 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-11-25 22:13:33,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 22:13:33,229 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-11-25 22:13:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 22:13:33,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:33,230 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:33,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:33,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:33,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1810277145, now seen corresponding path program 1 times [2022-11-25 22:13:33,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:33,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719086132] [2022-11-25 22:13:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:33,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:33,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358584736] [2022-11-25 22:13:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:33,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:33,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:33,454 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:33,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:13:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:33,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-25 22:13:33,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:13:33,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 22:13:33,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:33,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719086132] [2022-11-25 22:13:33,966 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:33,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358584736] [2022-11-25 22:13:33,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358584736] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:13:33,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:13:33,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2022-11-25 22:13:33,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474450559] [2022-11-25 22:13:33,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:33,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:13:33,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:33,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:13:33,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:13:33,977 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:13:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:34,058 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-11-25 22:13:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:13:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 33 [2022-11-25 22:13:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:34,060 INFO L225 Difference]: With dead ends: 47 [2022-11-25 22:13:34,060 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 22:13:34,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:13:34,061 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:34,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 122 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:13:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 22:13:34,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2022-11-25 22:13:34,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:13:34,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2022-11-25 22:13:34,085 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 33 [2022-11-25 22:13:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:34,086 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2022-11-25 22:13:34,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:13:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-11-25 22:13:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 22:13:34,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:34,088 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:34,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:34,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:34,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:34,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1313498982, now seen corresponding path program 1 times [2022-11-25 22:13:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:34,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383420809] [2022-11-25 22:13:34,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:34,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:34,309 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:34,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961334220] [2022-11-25 22:13:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:34,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:34,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:34,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:34,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:13:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:34,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-25 22:13:34,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:13:34,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 22:13:34,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:34,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383420809] [2022-11-25 22:13:34,897 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:34,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961334220] [2022-11-25 22:13:34,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961334220] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:13:34,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:13:34,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2022-11-25 22:13:34,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521103823] [2022-11-25 22:13:34,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:34,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:13:34,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:13:34,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:13:34,902 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 22:13:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:35,024 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2022-11-25 22:13:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:13:35,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 38 [2022-11-25 22:13:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:35,027 INFO L225 Difference]: With dead ends: 51 [2022-11-25 22:13:35,027 INFO L226 Difference]: Without dead ends: 49 [2022-11-25 22:13:35,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:13:35,030 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:35,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 128 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:13:35,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-25 22:13:35,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-25 22:13:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:13:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-11-25 22:13:35,065 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 38 [2022-11-25 22:13:35,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:35,067 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-11-25 22:13:35,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 22:13:35,067 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-11-25 22:13:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 22:13:35,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:35,068 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:35,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:35,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:35,280 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:35,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:35,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1793667961, now seen corresponding path program 1 times [2022-11-25 22:13:35,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:35,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432034342] [2022-11-25 22:13:35,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:35,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:35,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:35,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761646011] [2022-11-25 22:13:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:35,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:35,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:35,297 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:35,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:13:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:35,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-25 22:13:35,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 22:13:35,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:35,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:35,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432034342] [2022-11-25 22:13:35,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:35,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761646011] [2022-11-25 22:13:35,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761646011] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:13:35,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [358427311] [2022-11-25 22:13:35,781 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-25 22:13:35,781 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:13:35,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:13:35,783 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:13:35,783 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:13:36,878 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-25 22:13:36,888 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:13:36,905 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:13:38,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [358427311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:13:38,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:13:38,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 22 [2022-11-25 22:13:38,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341633515] [2022-11-25 22:13:38,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:38,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:13:38,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:38,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:13:38,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-11-25 22:13:38,820 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-25 22:13:39,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:39,196 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2022-11-25 22:13:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 22:13:39,198 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 43 [2022-11-25 22:13:39,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:39,199 INFO L225 Difference]: With dead ends: 73 [2022-11-25 22:13:39,199 INFO L226 Difference]: Without dead ends: 71 [2022-11-25 22:13:39,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 13 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-11-25 22:13:39,200 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:39,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 50 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:13:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-25 22:13:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2022-11-25 22:13:39,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 41 states have internal predecessors, (43), 20 states have call successors, (20), 9 states have call predecessors, (20), 9 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 22:13:39,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2022-11-25 22:13:39,239 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 43 [2022-11-25 22:13:39,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:39,239 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2022-11-25 22:13:39,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-25 22:13:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2022-11-25 22:13:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 22:13:39,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:39,241 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:39,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:39,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 22:13:39,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:39,448 INFO L85 PathProgramCache]: Analyzing trace with hash 434944611, now seen corresponding path program 1 times [2022-11-25 22:13:39,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:39,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263786565] [2022-11-25 22:13:39,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:39,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:39,468 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:39,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66742123] [2022-11-25 22:13:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:39,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:39,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:39,471 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:39,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:13:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:39,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:13:39,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-25 22:13:39,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-25 22:13:39,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:39,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263786565] [2022-11-25 22:13:39,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:39,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66742123] [2022-11-25 22:13:39,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66742123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:13:39,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [677800138] [2022-11-25 22:13:39,694 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-25 22:13:39,694 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:13:39,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:13:39,695 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:13:39,695 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:13:52,038 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 22:13:52,041 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:13:52,054 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:13:55,678 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2210#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:13:55,678 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:13:55,678 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:13:55,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-11-25 22:13:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910449162] [2022-11-25 22:13:55,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:13:55,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:13:55,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:55,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:13:55,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2022-11-25 22:13:55,680 INFO L87 Difference]: Start difference. First operand 69 states and 82 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 22:13:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:55,957 INFO L93 Difference]: Finished difference Result 111 states and 148 transitions. [2022-11-25 22:13:55,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:13:55,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 52 [2022-11-25 22:13:55,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:55,960 INFO L225 Difference]: With dead ends: 111 [2022-11-25 22:13:55,960 INFO L226 Difference]: Without dead ends: 103 [2022-11-25 22:13:55,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 123 SyntacticMatches, 10 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-25 22:13:55,962 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 34 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:55,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 177 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:13:55,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-25 22:13:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-11-25 22:13:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 53 states have internal predecessors, (61), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-25 22:13:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2022-11-25 22:13:55,997 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 52 [2022-11-25 22:13:55,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:55,998 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2022-11-25 22:13:55,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 22:13:55,998 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2022-11-25 22:13:55,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 22:13:55,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:56,000 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:13:56,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:13:56,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 22:13:56,207 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:13:56,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -243308457, now seen corresponding path program 1 times [2022-11-25 22:13:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:56,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277925238] [2022-11-25 22:13:56,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:56,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:56,222 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:13:56,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098396406] [2022-11-25 22:13:56,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:56,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:13:56,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:56,224 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:13:56,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:13:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:56,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 22:13:56,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:13:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 22:13:56,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:13:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-25 22:13:56,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:56,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277925238] [2022-11-25 22:13:56,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:13:56,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098396406] [2022-11-25 22:13:56,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098396406] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:13:56,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [738614814] [2022-11-25 22:13:56,577 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 22:13:56,577 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:13:56,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:13:56,578 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:13:56,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:14:07,078 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-25 22:14:07,086 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:14:07,100 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:14:11,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [738614814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:14:11,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:14:11,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9, 7] total 27 [2022-11-25 22:14:11,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552820978] [2022-11-25 22:14:11,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:14:11,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 22:14:11,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:14:11,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 22:14:11,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2022-11-25 22:14:11,610 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-25 22:14:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:12,490 INFO L93 Difference]: Finished difference Result 113 states and 146 transitions. [2022-11-25 22:14:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 22:14:12,490 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 58 [2022-11-25 22:14:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:12,497 INFO L225 Difference]: With dead ends: 113 [2022-11-25 22:14:12,497 INFO L226 Difference]: Without dead ends: 111 [2022-11-25 22:14:12,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 129 SyntacticMatches, 18 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2022-11-25 22:14:12,499 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:14:12,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 62 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:14:12,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-25 22:14:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-11-25 22:14:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 64 states have internal predecessors, (73), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-25 22:14:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2022-11-25 22:14:12,553 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 144 transitions. Word has length 58 [2022-11-25 22:14:12,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:12,553 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 144 transitions. [2022-11-25 22:14:12,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-25 22:14:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 144 transitions. [2022-11-25 22:14:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 22:14:12,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:12,555 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:12,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:14:12,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:12,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:14:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1984692712, now seen corresponding path program 1 times [2022-11-25 22:14:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:12,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880586911] [2022-11-25 22:14:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:12,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:12,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:12,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201226411] [2022-11-25 22:14:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:12,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:12,795 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:12,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 22:14:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:12,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 22:14:12,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-25 22:14:12,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:14:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-25 22:14:13,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:13,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880586911] [2022-11-25 22:14:13,066 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:13,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201226411] [2022-11-25 22:14:13,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201226411] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:14:13,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [408949233] [2022-11-25 22:14:13,069 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-25 22:14:13,069 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:14:13,069 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:14:13,070 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:14:13,070 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:14:17,794 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-25 22:14:17,844 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:14:17,858 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:14:23,146 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3657#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:14:23,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:14:23,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:14:23,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-11-25 22:14:23,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054807852] [2022-11-25 22:14:23,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:14:23,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:14:23,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:14:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:14:23,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2022-11-25 22:14:23,149 INFO L87 Difference]: Start difference. First operand 111 states and 144 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 22:14:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:23,377 INFO L93 Difference]: Finished difference Result 122 states and 158 transitions. [2022-11-25 22:14:23,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:14:23,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-25 22:14:23,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:23,380 INFO L225 Difference]: With dead ends: 122 [2022-11-25 22:14:23,380 INFO L226 Difference]: Without dead ends: 120 [2022-11-25 22:14:23,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 157 SyntacticMatches, 11 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2022-11-25 22:14:23,383 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:14:23,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:14:23,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-25 22:14:23,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-25 22:14:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 69 states have internal predecessors, (77), 40 states have call successors, (40), 12 states have call predecessors, (40), 12 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-25 22:14:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2022-11-25 22:14:23,425 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 65 [2022-11-25 22:14:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:23,426 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2022-11-25 22:14:23,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 22:14:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2022-11-25 22:14:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:14:23,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:23,428 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:23,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:14:23,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:23,635 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:14:23,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:23,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2003369438, now seen corresponding path program 1 times [2022-11-25 22:14:23,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:23,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724217289] [2022-11-25 22:14:23,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:23,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:23,646 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:23,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519903070] [2022-11-25 22:14:23,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:23,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:23,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:23,648 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:23,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 22:14:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:23,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-25 22:14:23,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-25 22:14:24,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:14:25,067 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-25 22:14:25,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:25,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724217289] [2022-11-25 22:14:25,068 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:25,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519903070] [2022-11-25 22:14:25,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519903070] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:14:25,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [422732615] [2022-11-25 22:14:25,070 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-25 22:14:25,070 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:14:25,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:14:25,071 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:14:25,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:14:29,402 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 22:14:29,406 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:14:29,418 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:14:46,359 WARN L233 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:15:01,068 WARN L233 SmtUtils]: Spent 12.72s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:15:01,526 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4510#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:15:01,526 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:15:01,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:01,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2022-11-25 22:15:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410121257] [2022-11-25 22:15:01,527 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:15:01,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 22:15:01,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:01,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 22:15:01,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1434, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 22:15:01,529 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 21 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 11 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2022-11-25 22:15:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:15,259 INFO L93 Difference]: Finished difference Result 199 states and 279 transitions. [2022-11-25 22:15:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 22:15:15,260 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 11 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 74 [2022-11-25 22:15:15,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:15,262 INFO L225 Difference]: With dead ends: 199 [2022-11-25 22:15:15,262 INFO L226 Difference]: Without dead ends: 197 [2022-11-25 22:15:15,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 169 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1505 ImplicationChecksByTransitivity, 40.6s TimeCoverageRelationStatistics Valid=490, Invalid=3292, Unknown=0, NotChecked=0, Total=3782 [2022-11-25 22:15:15,264 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 106 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:15,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 325 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 22:15:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-25 22:15:15,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 187. [2022-11-25 22:15:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 101 states have internal predecessors, (121), 73 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-25 22:15:15,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 266 transitions. [2022-11-25 22:15:15,356 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 266 transitions. Word has length 74 [2022-11-25 22:15:15,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:15,357 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 266 transitions. [2022-11-25 22:15:15,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 11 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2022-11-25 22:15:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 266 transitions. [2022-11-25 22:15:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 22:15:15,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:15,359 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:15,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:15,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 22:15:15,565 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:15:15,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:15,566 INFO L85 PathProgramCache]: Analyzing trace with hash -134461569, now seen corresponding path program 1 times [2022-11-25 22:15:15,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:15,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602505299] [2022-11-25 22:15:15,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:15,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:15,576 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:15:15,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853138769] [2022-11-25 22:15:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:15,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:15,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:15,578 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:15:15,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:15:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:15,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-25 22:15:15,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-25 22:15:16,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:15:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-25 22:15:16,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:16,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602505299] [2022-11-25 22:15:16,488 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:15:16,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853138769] [2022-11-25 22:15:16,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853138769] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:15:16,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [559450452] [2022-11-25 22:15:16,490 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-25 22:15:16,490 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:15:16,491 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:15:16,491 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:15:16,491 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:15:20,891 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 22:15:20,894 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:15:20,907 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:15:33,921 WARN L233 SmtUtils]: Spent 8.72s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:15:50,553 WARN L233 SmtUtils]: Spent 15.65s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:15:51,430 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5671#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:15:51,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:15:51,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:51,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 19 [2022-11-25 22:15:51,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369964188] [2022-11-25 22:15:51,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:15:51,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 22:15:51,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 22:15:51,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2022-11-25 22:15:51,433 INFO L87 Difference]: Start difference. First operand 187 states and 266 transitions. Second operand has 19 states, 18 states have (on average 2.0) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2022-11-25 22:15:55,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:55,977 INFO L93 Difference]: Finished difference Result 231 states and 326 transitions. [2022-11-25 22:15:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 22:15:55,977 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.0) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 79 [2022-11-25 22:15:55,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:55,979 INFO L225 Difference]: With dead ends: 231 [2022-11-25 22:15:55,979 INFO L226 Difference]: Without dead ends: 225 [2022-11-25 22:15:55,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=329, Invalid=2323, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 22:15:55,982 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 57 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:55,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 159 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 22:15:55,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-25 22:15:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 197. [2022-11-25 22:15:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 108 states have (on average 1.1759259259259258) internal successors, (127), 109 states have internal predecessors, (127), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-25 22:15:56,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 268 transitions. [2022-11-25 22:15:56,071 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 268 transitions. Word has length 79 [2022-11-25 22:15:56,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:56,072 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 268 transitions. [2022-11-25 22:15:56,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2022-11-25 22:15:56,072 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 268 transitions. [2022-11-25 22:15:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 22:15:56,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:56,074 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:56,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:56,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 22:15:56,284 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:15:56,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash 145896886, now seen corresponding path program 1 times [2022-11-25 22:15:56,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:56,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711154925] [2022-11-25 22:15:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:56,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:15:56,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986248194] [2022-11-25 22:15:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:56,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:56,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:56,297 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:15:56,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 22:15:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:56,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 22:15:56,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 122 proven. 13 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-25 22:15:56,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:15:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-25 22:15:56,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:56,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711154925] [2022-11-25 22:15:56,665 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:15:56,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986248194] [2022-11-25 22:15:56,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986248194] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:15:56,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [30725234] [2022-11-25 22:15:56,667 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 22:15:56,668 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:15:56,668 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:15:56,668 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:15:56,669 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:15:59,262 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2022-11-25 22:15:59,302 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:15:59,314 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:16:22,640 WARN L233 SmtUtils]: Spent 20.69s on a formula simplification. DAG size of input: 177 DAG size of output: 144 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:16:35,723 WARN L233 SmtUtils]: Spent 10.85s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:16:55,800 WARN L233 SmtUtils]: Spent 19.01s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:16:55,898 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6941#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:16:55,898 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:16:55,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:16:55,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2022-11-25 22:16:55,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844378968] [2022-11-25 22:16:55,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:16:55,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:16:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:55,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:16:55,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2022-11-25 22:16:55,900 INFO L87 Difference]: Start difference. First operand 197 states and 268 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2022-11-25 22:16:56,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:56,439 INFO L93 Difference]: Finished difference Result 248 states and 331 transitions. [2022-11-25 22:16:56,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 22:16:56,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) Word has length 90 [2022-11-25 22:16:56,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:56,441 INFO L225 Difference]: With dead ends: 248 [2022-11-25 22:16:56,441 INFO L226 Difference]: Without dead ends: 173 [2022-11-25 22:16:56,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 223 SyntacticMatches, 16 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 56.9s TimeCoverageRelationStatistics Valid=268, Invalid=1454, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 22:16:56,443 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 64 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:56,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 215 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:16:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-11-25 22:16:56,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 168. [2022-11-25 22:16:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 94 states have internal predecessors, (107), 59 states have call successors, (59), 15 states have call predecessors, (59), 15 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-25 22:16:56,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 224 transitions. [2022-11-25 22:16:56,540 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 224 transitions. Word has length 90 [2022-11-25 22:16:56,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:56,540 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 224 transitions. [2022-11-25 22:16:56,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2022-11-25 22:16:56,541 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 224 transitions. [2022-11-25 22:16:56,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 22:16:56,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:56,542 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:56,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 22:16:56,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:16:56,742 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:16:56,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:56,743 INFO L85 PathProgramCache]: Analyzing trace with hash -743497349, now seen corresponding path program 2 times [2022-11-25 22:16:56,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:56,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246217103] [2022-11-25 22:16:56,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:56,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:56,752 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:16:56,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593553016] [2022-11-25 22:16:56,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:16:56,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:16:56,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:56,756 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:16:56,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 22:16:56,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 22:16:56,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:16:56,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 22:16:56,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:16:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 152 proven. 10 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-25 22:16:56,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:16:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 46 proven. 24 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-25 22:16:57,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:57,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246217103] [2022-11-25 22:16:57,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:16:57,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593553016] [2022-11-25 22:16:57,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593553016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:16:57,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1440610171] [2022-11-25 22:16:57,135 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 22:16:57,135 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:16:57,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:16:57,136 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:16:57,136 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:17:01,193 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 22:17:01,197 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:17:01,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:17:15,736 WARN L233 SmtUtils]: Spent 10.23s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:17:36,550 WARN L233 SmtUtils]: Spent 19.43s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:17:36,818 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8297#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:17:36,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:17:36,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:17:36,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-25 22:17:36,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031049689] [2022-11-25 22:17:36,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:17:36,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:17:36,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:36,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:17:36,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 22:17:36,821 INFO L87 Difference]: Start difference. First operand 168 states and 224 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2022-11-25 22:17:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:37,388 INFO L93 Difference]: Finished difference Result 257 states and 344 transitions. [2022-11-25 22:17:37,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 22:17:37,389 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) Word has length 110 [2022-11-25 22:17:37,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:37,389 INFO L225 Difference]: With dead ends: 257 [2022-11-25 22:17:37,390 INFO L226 Difference]: Without dead ends: 160 [2022-11-25 22:17:37,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 276 SyntacticMatches, 21 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 35.9s TimeCoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2022-11-25 22:17:37,391 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 29 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:37,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 193 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:17:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-25 22:17:37,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 134. [2022-11-25 22:17:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 75 states have (on average 1.08) internal successors, (81), 77 states have internal predecessors, (81), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-25 22:17:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2022-11-25 22:17:37,452 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 110 [2022-11-25 22:17:37,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:37,453 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2022-11-25 22:17:37,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2022-11-25 22:17:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2022-11-25 22:17:37,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 22:17:37,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:37,454 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:37,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:37,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:37,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:37,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:37,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1538893617, now seen corresponding path program 2 times [2022-11-25 22:17:37,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:37,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826628898] [2022-11-25 22:17:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:37,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:37,666 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:17:37,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750565046] [2022-11-25 22:17:37,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:17:37,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:37,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:37,668 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:37,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 22:17:37,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 22:17:37,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:17:37,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-25 22:17:37,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 37 proven. 46 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-25 22:17:38,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:42,033 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 32 proven. 43 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-11-25 22:17:42,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:42,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826628898] [2022-11-25 22:17:42,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:17:42,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750565046] [2022-11-25 22:17:42,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750565046] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:42,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1840816988] [2022-11-25 22:17:42,036 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-25 22:17:42,036 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:17:42,036 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:17:42,036 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:17:42,037 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:17:45,125 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-25 22:17:45,171 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:17:45,183 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:18,608 WARN L233 SmtUtils]: Spent 28.13s on a formula simplification. DAG size of input: 179 DAG size of output: 146 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:18:54,468 WARN L233 SmtUtils]: Spent 24.15s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:19:22,922 WARN L233 SmtUtils]: Spent 23.28s on a formula simplification. DAG size of input: 177 DAG size of output: 87 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:19:23,162 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9687#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:19:23,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:19:23,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:19:23,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2022-11-25 22:19:23,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051534732] [2022-11-25 22:19:23,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:19:23,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 22:19:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:19:23,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 22:19:23,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1806, Unknown=0, NotChecked=0, Total=2070 [2022-11-25 22:19:23,165 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand has 26 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 14 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2022-11-25 22:19:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:39,247 INFO L93 Difference]: Finished difference Result 266 states and 355 transitions. [2022-11-25 22:19:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-25 22:19:39,248 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 14 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) Word has length 121 [2022-11-25 22:19:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:39,250 INFO L225 Difference]: With dead ends: 266 [2022-11-25 22:19:39,250 INFO L226 Difference]: Without dead ends: 217 [2022-11-25 22:19:39,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 299 SyntacticMatches, 18 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2641 ImplicationChecksByTransitivity, 105.8s TimeCoverageRelationStatistics Valid=841, Invalid=5165, Unknown=0, NotChecked=0, Total=6006 [2022-11-25 22:19:39,252 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 133 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:39,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 413 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-25 22:19:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-25 22:19:39,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 204. [2022-11-25 22:19:39,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 106 states have (on average 1.1037735849056605) internal successors, (117), 107 states have internal predecessors, (117), 79 states have call successors, (79), 18 states have call predecessors, (79), 18 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-25 22:19:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2022-11-25 22:19:39,418 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 121 [2022-11-25 22:19:39,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:39,419 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2022-11-25 22:19:39,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 14 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2022-11-25 22:19:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2022-11-25 22:19:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 22:19:39,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:39,428 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:19:39,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:39,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 22:19:39,631 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:39,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1186822259, now seen corresponding path program 3 times [2022-11-25 22:19:39,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:19:39,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105249885] [2022-11-25 22:19:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:19:39,643 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:19:39,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936815718] [2022-11-25 22:19:39,643 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 22:19:39,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:19:39,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:39,644 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:19:39,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 22:19:39,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 22:19:39,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:19:39,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:19:39,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 178 proven. 41 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-11-25 22:19:39,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 54 proven. 41 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-11-25 22:19:40,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:19:40,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105249885] [2022-11-25 22:19:40,056 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:19:40,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936815718] [2022-11-25 22:19:40,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936815718] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:40,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [918685033] [2022-11-25 22:19:40,059 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 22:19:40,059 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:19:40,060 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:19:40,060 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:19:40,060 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:19:42,465 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2022-11-25 22:19:42,503 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:19:42,516 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:20:13,316 WARN L233 SmtUtils]: Spent 28.12s on a formula simplification. DAG size of input: 177 DAG size of output: 144 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:20:23,079 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:20:37,172 WARN L233 SmtUtils]: Spent 11.73s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:20:37,254 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11293#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:20:37,255 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:20:37,255 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:20:37,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2022-11-25 22:20:37,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686335404] [2022-11-25 22:20:37,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:20:37,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:20:37,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:20:37,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:20:37,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 22:20:37,257 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) [2022-11-25 22:20:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:20:37,897 INFO L93 Difference]: Finished difference Result 247 states and 327 transitions. [2022-11-25 22:20:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:20:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) Word has length 129 [2022-11-25 22:20:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:20:37,899 INFO L225 Difference]: With dead ends: 247 [2022-11-25 22:20:37,899 INFO L226 Difference]: Without dead ends: 168 [2022-11-25 22:20:37,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 332 SyntacticMatches, 22 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 55.0s TimeCoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 22:20:37,901 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:20:37,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 219 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:20:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-25 22:20:38,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-25 22:20:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 89 states have (on average 1.0898876404494382) internal successors, (97), 90 states have internal predecessors, (97), 63 states have call successors, (63), 15 states have call predecessors, (63), 15 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-25 22:20:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 222 transitions. [2022-11-25 22:20:38,065 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 222 transitions. Word has length 129 [2022-11-25 22:20:38,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:20:38,066 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 222 transitions. [2022-11-25 22:20:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) [2022-11-25 22:20:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 222 transitions. [2022-11-25 22:20:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 22:20:38,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:38,068 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:38,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 22:20:38,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 22:20:38,274 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:20:38,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:38,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1911860483, now seen corresponding path program 4 times [2022-11-25 22:20:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:38,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97296787] [2022-11-25 22:20:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:38,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:38,286 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:20:38,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203239608] [2022-11-25 22:20:38,287 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 22:20:38,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:20:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:20:38,288 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:20:38,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 22:20:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:38,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 22:20:38,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:20:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 232 proven. 60 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-11-25 22:20:38,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:20:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 70 proven. 66 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2022-11-25 22:20:38,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:38,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97296787] [2022-11-25 22:20:38,754 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:20:38,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203239608] [2022-11-25 22:20:38,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203239608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:20:38,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [347698085] [2022-11-25 22:20:38,756 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 22:20:38,756 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:20:38,757 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:20:38,757 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:20:38,757 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:20:41,178 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-25 22:20:41,220 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-25 22:20:41,233 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:21:25,656 WARN L233 SmtUtils]: Spent 41.67s on a formula simplification. DAG size of input: 179 DAG size of output: 150 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:21:37,829 WARN L233 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:21:58,544 WARN L233 SmtUtils]: Spent 20.02s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:21:59,177 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12917#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:21:59,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:21:59,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:21:59,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-25 22:21:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669319576] [2022-11-25 22:21:59,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:21:59,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:21:59,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:21:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:21:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 22:21:59,180 INFO L87 Difference]: Start difference. First operand 168 states and 222 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 12 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2022-11-25 22:21:59,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:21:59,902 INFO L93 Difference]: Finished difference Result 176 states and 228 transitions. [2022-11-25 22:21:59,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 22:21:59,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 12 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) Word has length 154 [2022-11-25 22:21:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:21:59,904 INFO L225 Difference]: With dead ends: 176 [2022-11-25 22:21:59,904 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:21:59,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 402 SyntacticMatches, 27 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 78.2s TimeCoverageRelationStatistics Valid=227, Invalid=1413, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 22:21:59,906 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 42 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:21:59,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 205 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:21:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:21:59,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:21:59,907 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) [2022-11-25 22:21:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:21:59,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2022-11-25 22:21:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:21:59,908 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:21:59,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 12 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2022-11-25 22:21:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:21:59,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:21:59,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:21:59,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 22:22:00,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 22:22:00,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 22:22:25,953 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-11-25 22:22:25,954 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-11-25 22:22:25,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 22:22:25,954 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,954 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,954 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-11-25 22:22:25,955 INFO L895 garLoopResultBuilder]: At program point L41-1(lines 39 68) the Hoare annotation is: (let ((.cse20 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse25 (select |#memory_int| 1)) (.cse23 (<= |ULTIMATE.start_main_~y~0#1| 2))) (let ((.cse7 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse18 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse2 (not (= (ite (and .cse23 (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse0 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse21 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse19 (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (= (select |#length| 3) 12)) (.cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|)) (.cse4 (= 11 (select |#length| 2))) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse8 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse9 (= (select |#valid| 1) 1)) (.cse10 (= (select |#valid| 0) 0)) (.cse11 (= (select |#valid| 2) 1)) (.cse12 (= |#NULL.offset| 0)) (.cse13 (= (select .cse25 0) 48)) (.cse14 (= .cse20 |ULTIMATE.start_main_~a~0#1|)) (.cse15 (= (select .cse25 1) 0)) (.cse22 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~xy~0#1|)) (< |ULTIMATE.start_main_~c~0#1| .cse0) .cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse6 (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~yy~0#1|)) (<= 0 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 1) .cse7 (= |ULTIMATE.start_main_~s~0#1| 0) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= |ULTIMATE.start_main_~yy~0#1| 4611686018427387904) (<= |ULTIMATE.start_main_~xy~0#1| 4611686018427387904) .cse15 .cse16 .cse17) (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse1 .cse18 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse4 .cse5 (= .cse19 |ULTIMATE.start_main_~b~0#1|) .cse6 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 .cse9 (<= 1 .cse20) .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse13 (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) 2) .cse14 .cse21 .cse15 .cse22 .cse16 .cse17) (and (<= (* 2 |ULTIMATE.start_main_~c~0#1|) 1) (<= 0 |ULTIMATE.start_main_~b~0#1|) .cse1 .cse18 .cse2 .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= .cse0 1) .cse21 (= .cse19 0) .cse15 .cse16 .cse17) (let ((.cse24 (* 2 |ULTIMATE.start_main_~x~0#1|))) (and .cse1 .cse23 (<= |ULTIMATE.start_main_~a~0#1| 2) .cse3 .cse4 .cse5 .cse6 (<= .cse24 |ULTIMATE.start_main_~y~0#1|) (= (+ 2 |ULTIMATE.start_main_~q~0#1|) 0) .cse8 .cse9 .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~y~0#1| (+ .cse24 |ULTIMATE.start_main_~b~0#1|)) .cse13 .cse14 (not (<= (* 3 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|)) .cse15 .cse22 .cse16 .cse17))))) [2022-11-25 22:22:25,955 INFO L895 garLoopResultBuilder]: At program point L41-2(lines 41 68) the Hoare annotation is: (let ((.cse0 (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= .cse0 |ULTIMATE.start_main_~b~0#1|) (= (select |#valid| 3) 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) (= .cse0 0) (= (select .cse1 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 22:22:25,955 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,956 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-11-25 22:22:25,956 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2022-11-25 22:22:25,956 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse3 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse6 (select |#memory_int| 1)) (.cse1 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse2 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse5 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse0 (= (+ .cse3 .cse4) |ULTIMATE.start_main_~b~0#1|)) (.cse7 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) (and (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (or (= |ULTIMATE.start_main_~b~0#1| 0) .cse0) (= (select |#valid| 3) 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (or (= (+ .cse1 .cse2 .cse3 .cse4) .cse5) (<= (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse6 0) 48) (= .cse5 |ULTIMATE.start_main_~a~0#1|) (= (select .cse6 1) 0) (or (= (+ .cse1 .cse2) .cse5) .cse7 (not (= |ULTIMATE.start_main_~c~0#1| 0))) (or .cse0 .cse7) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-25 22:22:25,957 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= (select |#valid| 1) 1) (<= 1 .cse0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse1 0) 48) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) 2) (= .cse0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,957 INFO L895 garLoopResultBuilder]: At program point L38-1(line 38) the Hoare annotation is: (let ((.cse0 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= (select |#valid| 1) 1) (<= 1 .cse0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse1 0) 48) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) 2) (= .cse0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,957 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-25 22:22:25,957 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:22:25,957 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-25 22:22:25,957 INFO L899 garLoopResultBuilder]: For program point L51(lines 47 56) no Hoare annotation was computed. [2022-11-25 22:22:25,958 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 56) the Hoare annotation is: (let ((.cse40 (select |#memory_int| 1)) (.cse38 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse37 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse37 2)) (.cse36 (<= .cse38 |ULTIMATE.start_main_~a~0#1|)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse39 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse20 (= (select .cse40 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse23 (= (select .cse40 1) 0)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 .cse36 .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse37 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~xy~0#1|)) .cse0 (<= |ULTIMATE.start_main_~a~0#1| 2) .cse36 .cse9 .cse10 .cse31 (<= .cse38 |ULTIMATE.start_main_~c~0#1|) .cse12 (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~yy~0#1|)) .cse32 .cse39 .cse33 .cse34 (<= |ULTIMATE.start_main_~c~0#1| 2) .cse15 .cse35 .cse16 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse17 .cse18 .cse20 .cse21 (<= |ULTIMATE.start_main_~yy~0#1| 4611686018427387904) (<= |ULTIMATE.start_main_~xy~0#1| 4611686018427387904) .cse23 .cse26 .cse28) (and .cse0 .cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse39 .cse15 (<= 1 .cse8) .cse16 .cse17 .cse18 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse19 .cse20 .cse21 .cse22 .cse23 .cse25 .cse26 .cse28)))) [2022-11-25 22:22:25,958 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 56) no Hoare annotation was computed. [2022-11-25 22:22:25,958 INFO L902 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: true [2022-11-25 22:22:25,959 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-25 22:22:25,959 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-25 22:22:25,959 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 16) the Hoare annotation is: true [2022-11-25 22:22:25,959 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2022-11-25 22:22:25,959 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2022-11-25 22:22:25,959 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2022-11-25 22:22:25,959 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2022-11-25 22:22:25,960 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-11-25 22:22:25,962 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:22:25,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:22:26,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:22:26 BoogieIcfgContainer [2022-11-25 22:22:26,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:22:26,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:22:26,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:22:26,001 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:22:26,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:13:28" (3/4) ... [2022-11-25 22:22:26,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:22:26,010 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-25 22:22:26,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-25 22:22:26,015 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 22:22:26,015 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 22:22:26,015 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 22:22:26,016 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:22:26,055 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:22:26,056 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:22:26,057 INFO L158 Benchmark]: Toolchain (without parser) took 538149.33ms. Allocated memory was 132.1MB in the beginning and 780.1MB in the end (delta: 648.0MB). Free memory was 67.7MB in the beginning and 465.1MB in the end (delta: -397.5MB). Peak memory consumption was 252.0MB. Max. memory is 16.1GB. [2022-11-25 22:22:26,057 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 132.1MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:22:26,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.73ms. Allocated memory was 132.1MB in the beginning and 203.4MB in the end (delta: 71.3MB). Free memory was 67.5MB in the beginning and 166.0MB in the end (delta: -98.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-25 22:22:26,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.35ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 164.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:22:26,060 INFO L158 Benchmark]: Boogie Preprocessor took 28.33ms. Allocated memory is still 203.4MB. Free memory was 164.6MB in the beginning and 163.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:22:26,065 INFO L158 Benchmark]: RCFGBuilder took 501.11ms. Allocated memory is still 203.4MB. Free memory was 163.3MB in the beginning and 173.8MB in the end (delta: -10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:22:26,065 INFO L158 Benchmark]: TraceAbstraction took 537205.98ms. Allocated memory was 203.4MB in the beginning and 780.1MB in the end (delta: 576.7MB). Free memory was 173.2MB in the beginning and 468.3MB in the end (delta: -295.0MB). Peak memory consumption was 475.6MB. Max. memory is 16.1GB. [2022-11-25 22:22:26,066 INFO L158 Benchmark]: Witness Printer took 55.44ms. Allocated memory is still 780.1MB. Free memory was 468.3MB in the beginning and 465.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:22:26,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 132.1MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.73ms. Allocated memory was 132.1MB in the beginning and 203.4MB in the end (delta: 71.3MB). Free memory was 67.5MB in the beginning and 166.0MB in the end (delta: -98.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.35ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 164.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.33ms. Allocated memory is still 203.4MB. Free memory was 164.6MB in the beginning and 163.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.11ms. Allocated memory is still 203.4MB. Free memory was 163.3MB in the beginning and 173.8MB in the end (delta: -10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 537205.98ms. Allocated memory was 203.4MB in the beginning and 780.1MB in the end (delta: 576.7MB). Free memory was 173.2MB in the beginning and 468.3MB in the end (delta: -295.0MB). Peak memory consumption was 475.6MB. Max. memory is 16.1GB. * Witness Printer took 55.44ms. Allocated memory is still 780.1MB. Free memory was 468.3MB in the beginning and 465.1MB 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: 13]: 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 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 537.1s, OverallIterations: 16, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 39.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 25.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 20.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 618 mSDsluCounter, 2558 SdHoareTripleChecker+Invalid, 19.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1895 mSDsCounter, 958 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4968 IncrementalHoareTripleChecker+Invalid, 5926 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 958 mSolverCounterUnsat, 663 mSDtfsCounter, 4968 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3280 GetRequests, 2608 SyntacticMatches, 176 SemanticMatches, 496 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10294 ImplicationChecksByTransitivity, 423.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=14, InterpolantAutomatonStates: 219, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 95 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 194 PreInvPairs, 266 NumberOfFragments, 5595 HoareAnnotationTreeSize, 194 FomulaSimplifications, 3302 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 52092 FormulaSimplificationTreeSizeReductionInter, 24.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 1127 NumberOfCodeBlocks, 1046 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2155 ConstructedInterpolants, 0 QuantifiedInterpolants, 8374 SizeOfPredicates, 104 NumberOfNonLiveVariables, 3050 ConjunctsInSsa, 374 ConjunctsInUnsatCore, 30 InterpolantComputations, 4 PerfectInterpolantSequences, 7453/7936 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 12.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 98, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 51, TOOLS_POST_TIME: 0.7s, TOOLS_POST_CALL_APPLICATIONS: 92, TOOLS_POST_CALL_TIME: 9.4s, TOOLS_POST_RETURN_APPLICATIONS: 66, TOOLS_POST_RETURN_TIME: 0.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 209, TOOLS_QUANTIFIERELIM_TIME: 10.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 227, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 116, DOMAIN_JOIN_TIME: 1.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 98, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 4.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 4.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 66, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1324, DAG_COMPRESSION_RETAINED_NODES: 224, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !((if 1 <= y then 1 else 0) == 0)) && (k * q * x + k * s * y == r * y + p * x || !(c == 0))) && xy * q + yy * s + b == s * y + q * x + b * y) && (k * q * x + k * s * y + s * y + q * x == r * y + p * x || !(b == c))) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && b <= x) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && b + c == x) && #NULL == 0) || ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !((if 1 <= y then 1 else 0) == 0)) && (k * q * x + k * s * y == r * y + p * x || !(c == 0))) && xy * q + yy * s + b == s * y + q * x + b * y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && 2 * b + c <= 2) && 0 <= c) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && b <= x) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((unknown-#length-unknown[3] == 12 && a == c + b * k) && xy * q + yy * s + b == s * y + q * x + b * y) && b + c == y) && p == 0) && a == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && 1 <= c) && b == x) && \valid[3] == 1) && q == 1) && s == 0) && 1 <= x) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && b + c <= 2) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((unknown-#length-unknown[3] == 12 && a == c + b * k) && xy * q + yy * s + b == s * y + q * x + b * y) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && 2 * b + c <= 2) && q == 1) && s == 0) && 1 <= x) && \valid[1] == 1) && r == 1) && 2 * b + c == y) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && unknown-#memory_int-unknown[1][1] == 0) && 2 == k) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((((((0 <= 4611686016279904256 + xy && unknown-#length-unknown[3] == 12) && a <= 2) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && b + 1 <= c) && \valid[3] == 1) && 0 <= 4611686016279904256 + yy) && q == 1) && k == 0) && s == 0) && 1 <= x) && c <= 2) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && c == y) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && yy <= 4611686018427387904) && xy <= 4611686018427387904) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !((if 1 <= y then 1 else 0) == 0)) && yy == y * y) && a == c) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && k == 0) && \valid[1] == 1) && 1 <= r * y + p * x) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && xy == x * y) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((0 <= 4611686016279904256 + xy && c < 2 * b) && unknown-#length-unknown[3] == 12) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && 0 <= 4611686016279904256 + yy) && 0 <= p) && p <= 1) && q == 1) && k == 0) && s == 0) && b <= c) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && yy <= 4611686018427387904) && xy <= 4611686018427387904) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((c == 0 && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && yy == y * y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && r == 0) && q == 0) && k == 0) && \valid[1] == 1) && 1 <= r * y + p * x) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && xy == x * y) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && b + c <= 2) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((2 * c <= 1 && 0 <= b) && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 0 <= c) && 1 <= x) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && 2 * b <= 1) && x <= 2) && s * y + q * x == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((unknown-#length-unknown[3] == 12 && y <= 2) && a <= 2) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 * x <= y) && 2 + q == 0) && b <= c) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && y == 2 * x + b) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && !(3 * x <= y)) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-25 22:22:26,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c1cec0-41ab-42e2-908a-763d0099a383/bin/utaipan-ByfvJB40ur/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