./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- 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-dbf71c6-m [2022-10-17 17:22:16,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:22:16,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:22:16,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:22:16,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:22:16,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:22:16,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:22:16,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:22:16,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:22:16,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:22:16,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:22:16,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:22:16,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:22:16,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:22:16,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:22:16,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:22:16,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:22:16,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:22:16,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:22:16,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:22:16,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:22:16,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:22:16,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:22:16,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:22:16,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:22:16,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:22:16,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:22:16,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:22:16,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:22:16,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:22:16,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:22:16,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:22:16,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:22:16,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:22:16,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:22:16,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:22:16,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:22:16,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:22:16,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:22:16,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:22:16,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:22:16,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-10-17 17:22:16,852 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:22:16,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:22:16,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:22:16,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:22:16,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:22:16,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:22:16,855 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:22:16,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:22:16,855 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:22:16,855 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:22:16,856 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:22:16,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:22:16,856 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:22:16,856 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:22:16,857 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:22:16,857 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:22:16,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:22:16,857 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:22:16,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:22:16,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:22:16,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:22:16,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:22:16,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:22:16,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:22:16,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:22:16,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:22:16,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:22:16,860 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 17:22:16,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:22:16,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:22:16,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:22:16,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:22:16,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:22:16,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:22:16,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:16,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:22:16,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:22:16,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:22:16,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:22:16,863 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:22:16,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:22:16,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:22:16,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:22:16,870 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_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2022-10-17 17:22:17,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:22:17,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:22:17,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:22:17,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:22:17,182 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:22:17,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-10-17 17:22:17,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/data/97731f7cb/1e5c2d69277d401a8f11288d32bb7450/FLAG231cd378c [2022-10-17 17:22:17,969 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:22:17,973 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-10-17 17:22:18,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/data/97731f7cb/1e5c2d69277d401a8f11288d32bb7450/FLAG231cd378c [2022-10-17 17:22:18,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/data/97731f7cb/1e5c2d69277d401a8f11288d32bb7450 [2022-10-17 17:22:18,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:22:18,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:22:18,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:18,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:22:18,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:22:18,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:18" (1/1) ... [2022-10-17 17:22:18,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38425a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:18, skipping insertion in model container [2022-10-17 17:22:18,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:22:18" (1/1) ... [2022-10-17 17:22:18,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:22:18,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:22:18,747 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-10-17 17:22:18,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-10-17 17:22:18,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:22:18,993 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:22:19,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-10-17 17:22:19,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-10-17 17:22:19,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:22:19,168 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:22:19,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19 WrapperNode [2022-10-17 17:22:19,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:22:19,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:22:19,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:22:19,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:22:19,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,412 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1704 [2022-10-17 17:22:19,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:22:19,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:22:19,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:22:19,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:22:19,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:22:19,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:22:19,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:22:19,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:22:19,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (1/1) ... [2022-10-17 17:22:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:22:19,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:19,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:22:19,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:22:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:22:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 17:22:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 17:22:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:22:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:22:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:22:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:22:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:22:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:22:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:22:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 17:22:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:22:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:22:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:22:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:22:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:22:20,091 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:22:20,093 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:22:22,622 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:22:23,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:22:23,359 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-10-17 17:22:23,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:23 BoogieIcfgContainer [2022-10-17 17:22:23,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:22:23,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:22:23,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:22:23,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:22:23,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:22:18" (1/3) ... [2022-10-17 17:22:23,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e47f6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:22:23, skipping insertion in model container [2022-10-17 17:22:23,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:22:19" (2/3) ... [2022-10-17 17:22:23,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e47f6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:22:23, skipping insertion in model container [2022-10-17 17:22:23,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:22:23" (3/3) ... [2022-10-17 17:22:23,375 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2022-10-17 17:22:23,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:22:23,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-17 17:22:23,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:22:23,476 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;@27b3678a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:22:23,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-17 17:22:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 166 states have (on average 1.8313253012048192) internal successors, (304), 181 states have internal predecessors, (304), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 17:22:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 17:22:23,488 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:23,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 17:22:23,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 17:22:23,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1340156, now seen corresponding path program 1 times [2022-10-17 17:22:23,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:23,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330038155] [2022-10-17 17:22:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:23,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:23,699 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:22:23,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644438972] [2022-10-17 17:22:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:23,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:23,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:23,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:22:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:23,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:22:24,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:22:24,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:24,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:22:24,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:24,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330038155] [2022-10-17 17:22:24,043 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:22:24,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644438972] [2022-10-17 17:22:24,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644438972] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:24,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:24,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-17 17:22:24,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944931044] [2022-10-17 17:22:24,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:24,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:24,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:24,099 INFO L87 Difference]: Start difference. First operand has 190 states, 166 states have (on average 1.8313253012048192) internal successors, (304), 181 states have internal predecessors, (304), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-10-17 17:22:26,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-17 17:22:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:27,806 INFO L93 Difference]: Finished difference Result 528 states and 925 transitions. [2022-10-17 17:22:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:27,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 17:22:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:27,832 INFO L225 Difference]: With dead ends: 528 [2022-10-17 17:22:27,833 INFO L226 Difference]: Without dead ends: 312 [2022-10-17 17:22:27,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:27,841 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 159 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:27,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 386 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-17 17:22:27,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-10-17 17:22:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 212. [2022-10-17 17:22:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 203 states have internal predecessors, (232), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-17 17:22:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 264 transitions. [2022-10-17 17:22:27,913 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 264 transitions. Word has length 3 [2022-10-17 17:22:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:27,913 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 264 transitions. [2022-10-17 17:22:27,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-10-17 17:22:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 264 transitions. [2022-10-17 17:22:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 17:22:27,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:27,918 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:27,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:22:28,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-17 17:22:28,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 17:22:28,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:28,140 INFO L85 PathProgramCache]: Analyzing trace with hash -938569559, now seen corresponding path program 1 times [2022-10-17 17:22:28,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:28,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370222248] [2022-10-17 17:22:28,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:28,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:28,490 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:22:28,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445655937] [2022-10-17 17:22:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:28,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:28,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:28,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:28,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 17:22:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:29,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 3040 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:22:29,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:22:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:29,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:22:29,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:29,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370222248] [2022-10-17 17:22:29,957 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:22:29,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445655937] [2022-10-17 17:22:29,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445655937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:29,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:29,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:22:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559556737] [2022-10-17 17:22:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:29,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:22:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:22:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:22:29,960 INFO L87 Difference]: Start difference. First operand 212 states and 264 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-10-17 17:22:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:32,715 INFO L93 Difference]: Finished difference Result 312 states and 378 transitions. [2022-10-17 17:22:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:22:32,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-17 17:22:32,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:32,727 INFO L225 Difference]: With dead ends: 312 [2022-10-17 17:22:32,728 INFO L226 Difference]: Without dead ends: 311 [2022-10-17 17:22:32,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:22:32,730 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 116 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:32,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 527 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-17 17:22:32,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-10-17 17:22:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 307. [2022-10-17 17:22:32,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 275 states have (on average 1.2036363636363636) internal successors, (331), 292 states have internal predecessors, (331), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-17 17:22:32,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 375 transitions. [2022-10-17 17:22:32,775 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 375 transitions. Word has length 48 [2022-10-17 17:22:32,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:32,775 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 375 transitions. [2022-10-17 17:22:32,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-10-17 17:22:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 375 transitions. [2022-10-17 17:22:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 17:22:32,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:32,778 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:32,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 17:22:32,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:32,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 17:22:32,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:32,979 INFO L85 PathProgramCache]: Analyzing trace with hash 969115508, now seen corresponding path program 1 times [2022-10-17 17:22:32,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:32,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422420877] [2022-10-17 17:22:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:32,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:33,243 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:22:33,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913789716] [2022-10-17 17:22:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:33,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:33,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:33,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:33,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 17:22:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:34,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:22:34,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:22:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:34,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:22:34,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:34,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422420877] [2022-10-17 17:22:34,808 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:22:34,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913789716] [2022-10-17 17:22:34,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913789716] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:34,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:34,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:22:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923681477] [2022-10-17 17:22:34,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:34,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:22:34,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:22:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:22:34,815 INFO L87 Difference]: Start difference. First operand 307 states and 375 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-10-17 17:22:37,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:37,297 INFO L93 Difference]: Finished difference Result 307 states and 375 transitions. [2022-10-17 17:22:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:22:37,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-17 17:22:37,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:37,307 INFO L225 Difference]: With dead ends: 307 [2022-10-17 17:22:37,307 INFO L226 Difference]: Without dead ends: 305 [2022-10-17 17:22:37,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:22:37,310 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 118 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:37,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 327 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-17 17:22:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-10-17 17:22:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2022-10-17 17:22:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 274 states have (on average 1.197080291970803) internal successors, (328), 289 states have internal predecessors, (328), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-17 17:22:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 372 transitions. [2022-10-17 17:22:37,339 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 372 transitions. Word has length 49 [2022-10-17 17:22:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:37,339 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 372 transitions. [2022-10-17 17:22:37,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-10-17 17:22:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 372 transitions. [2022-10-17 17:22:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 17:22:37,342 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:37,343 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:22:37,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 17:22:37,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:37,567 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 17:22:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash -687852433, now seen corresponding path program 1 times [2022-10-17 17:22:37,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:37,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297994636] [2022-10-17 17:22:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:37,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:37,811 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:22:37,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876845137] [2022-10-17 17:22:37,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:37,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:37,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:37,813 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:37,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 17:22:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:39,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 3070 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:22:39,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:22:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:22:39,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:22:39,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:39,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297994636] [2022-10-17 17:22:39,383 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:22:39,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876845137] [2022-10-17 17:22:39,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876845137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:39,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:39,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:22:39,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475682154] [2022-10-17 17:22:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:39,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:39,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:39,386 INFO L87 Difference]: Start difference. First operand 304 states and 372 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:22:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:41,360 INFO L93 Difference]: Finished difference Result 589 states and 737 transitions. [2022-10-17 17:22:41,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-17 17:22:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:41,369 INFO L225 Difference]: With dead ends: 589 [2022-10-17 17:22:41,369 INFO L226 Difference]: Without dead ends: 357 [2022-10-17 17:22:41,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:41,372 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 76 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:41,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 344 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-17 17:22:41,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-10-17 17:22:41,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2022-10-17 17:22:41,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 313 states have (on average 1.2236421725239617) internal successors, (383), 338 states have internal predecessors, (383), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-17 17:22:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 447 transitions. [2022-10-17 17:22:41,411 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 447 transitions. Word has length 51 [2022-10-17 17:22:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:41,413 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 447 transitions. [2022-10-17 17:22:41,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:22:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 447 transitions. [2022-10-17 17:22:41,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 17:22:41,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:41,418 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1] [2022-10-17 17:22:41,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 17:22:41,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:41,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 17:22:41,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:41,619 INFO L85 PathProgramCache]: Analyzing trace with hash 275991936, now seen corresponding path program 1 times [2022-10-17 17:22:41,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:41,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651484068] [2022-10-17 17:22:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:41,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:41,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:22:41,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174767254] [2022-10-17 17:22:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:41,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:41,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:41,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:41,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 17:22:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:22:43,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 2207 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:22:43,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:22:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 17:22:43,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:22:43,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:22:43,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651484068] [2022-10-17 17:22:43,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 17:22:43,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174767254] [2022-10-17 17:22:43,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174767254] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:22:43,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:22:43,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:22:43,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968664439] [2022-10-17 17:22:43,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:22:43,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:22:43,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:22:43,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:22:43,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:43,203 INFO L87 Difference]: Start difference. First operand 353 states and 447 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 17:22:45,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:22:45,653 INFO L93 Difference]: Finished difference Result 678 states and 862 transitions. [2022-10-17 17:22:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:22:45,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-10-17 17:22:45,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:22:45,665 INFO L225 Difference]: With dead ends: 678 [2022-10-17 17:22:45,665 INFO L226 Difference]: Without dead ends: 351 [2022-10-17 17:22:45,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:22:45,667 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 11 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:22:45,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 327 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-17 17:22:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-10-17 17:22:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-10-17 17:22:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 311 states have (on average 1.2218649517684887) internal successors, (380), 336 states have internal predecessors, (380), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-17 17:22:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 444 transitions. [2022-10-17 17:22:45,691 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 444 transitions. Word has length 64 [2022-10-17 17:22:45,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:22:45,691 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 444 transitions. [2022-10-17 17:22:45,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 17:22:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 444 transitions. [2022-10-17 17:22:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-17 17:22:45,694 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:22:45,694 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1] [2022-10-17 17:22:45,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-17 17:22:45,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:45,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 17:22:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:22:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1091525609, now seen corresponding path program 1 times [2022-10-17 17:22:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:22:45,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7067617] [2022-10-17 17:22:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:45,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:22:46,019 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 17:22:46,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803463434] [2022-10-17 17:22:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:22:46,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:22:46,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:22:46,021 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:22:46,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd220d3d-6df8-43ab-98ca-257ac0538e80/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process