./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur --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 a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 --- 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 22:30:31,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:30:31,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:30:31,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:30:31,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:30:31,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:30:31,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:30:31,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:30:31,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:30:31,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:30:31,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:30:31,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:30:31,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:30:31,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:30:31,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:30:31,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:30:31,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:30:31,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:30:31,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:30:31,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:30:31,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:30:31,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:30:31,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:30:31,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:30:31,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:30:31,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:30:31,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:30:31,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:30:31,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:30:31,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:30:31,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:30:31,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:30:31,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:30:31,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:30:31,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:30:31,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:30:31,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:30:31,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:30:31,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:30:31,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:30:31,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:30:31,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:30:31,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:30:31,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:30:31,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:30:31,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:30:31,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:30:31,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:30:31,821 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:30:31,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:30:31,822 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:30:31,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:30:31,823 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:30:31,824 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:30:31,824 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:30:31,824 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:30:31,824 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:30:31,825 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:30:31,825 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:30:31,825 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:30:31,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:30:31,827 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:30:31,827 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:30:31,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:30:31,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:30:31,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:30:31,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:30:31,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:30:31,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:30:31,829 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:30:31,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:30:31,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:30:31,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:30:31,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:30:31,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:30:31,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:30:31,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:31,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:30:31,831 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:30:31,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:30:31,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:30:31,832 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:30:31,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:30:31,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:30:31,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:30:31,833 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 [2022-11-25 22:30:32,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:30:32,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:30:32,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:30:32,185 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:30:32,186 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:30:32,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2022-11-25 22:30:35,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:30:35,898 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:30:35,907 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2022-11-25 22:30:35,929 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data/f4624f1b9/b234ec6a14454340992c8496b0b6aab6/FLAG9b92106dd [2022-11-25 22:30:35,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data/f4624f1b9/b234ec6a14454340992c8496b0b6aab6 [2022-11-25 22:30:35,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:30:35,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:30:35,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:35,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:30:35,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:30:35,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:35" (1/1) ... [2022-11-25 22:30:35,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ae933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:35, skipping insertion in model container [2022-11-25 22:30:35,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:35" (1/1) ... [2022-11-25 22:30:35,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:30:36,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:30:36,554 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-25 22:30:36,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:36,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:30:36,733 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-25 22:30:36,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:36,818 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:30:36,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36 WrapperNode [2022-11-25 22:30:36,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:36,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:36,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:30:36,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:30:36,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:36,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:36,944 INFO L138 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 623 [2022-11-25 22:30:36,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:36,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:30:36,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:30:36,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:30:36,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:36,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:36,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:36,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:37,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:37,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:37,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:37,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:37,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:30:37,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:30:37,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:30:37,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:30:37,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (1/1) ... [2022-11-25 22:30:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:37,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:37,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:30:37,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:30:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:30:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:30:37,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:30:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:30:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:30:37,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:30:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:30:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:30:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:30:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:30:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:30:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:30:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:30:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:30:37,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:30:37,549 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:30:37,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:30:39,054 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:30:39,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:30:39,405 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-25 22:30:39,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:39 BoogieIcfgContainer [2022-11-25 22:30:39,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:30:39,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:30:39,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:30:39,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:30:39,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:30:35" (1/3) ... [2022-11-25 22:30:39,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1ce1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:39, skipping insertion in model container [2022-11-25 22:30:39,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:36" (2/3) ... [2022-11-25 22:30:39,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1ce1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:39, skipping insertion in model container [2022-11-25 22:30:39,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:39" (3/3) ... [2022-11-25 22:30:39,421 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i [2022-11-25 22:30:39,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:30:39,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 22:30:39,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:30:39,537 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;@2386ab9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:30:39,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 22:30:39,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:30:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 22:30:39,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:39,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 22:30:39,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:30:39,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash 531335, now seen corresponding path program 1 times [2022-11-25 22:30:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715070040] [2022-11-25 22:30:39,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:39,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:39,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:39,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715070040] [2022-11-25 22:30:39,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715070040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:39,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:39,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:30:39,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542570433] [2022-11-25 22:30:39,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:39,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:30:39,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:39,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:30:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:30:39,870 INFO L87 Difference]: Start difference. First operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 3.0) 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) [2022-11-25 22:30:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:40,408 INFO L93 Difference]: Finished difference Result 176 states and 293 transitions. [2022-11-25 22:30:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:30:40,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) 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 [2022-11-25 22:30:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:40,426 INFO L225 Difference]: With dead ends: 176 [2022-11-25 22:30:40,426 INFO L226 Difference]: Without dead ends: 87 [2022-11-25 22:30:40,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 22:30:40,439 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:40,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:30:40,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-25 22:30:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-25 22:30:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.328358208955224) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:30:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2022-11-25 22:30:40,521 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 3 [2022-11-25 22:30:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:40,523 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2022-11-25 22:30:40,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) 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) [2022-11-25 22:30:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2022-11-25 22:30:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:30:40,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:40,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:30:40,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:30:40,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:30:40,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 16527266, now seen corresponding path program 1 times [2022-11-25 22:30:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:40,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596331380] [2022-11-25 22:30:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:40,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:40,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:40,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596331380] [2022-11-25 22:30:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596331380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:40,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:40,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:30:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097992701] [2022-11-25 22:30:40,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:40,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:30:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:40,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:30:40,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:30:40,627 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:42,826 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2022-11-25 22:30:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:30:42,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 22:30:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:42,837 INFO L225 Difference]: With dead ends: 170 [2022-11-25 22:30:42,837 INFO L226 Difference]: Without dead ends: 141 [2022-11-25 22:30:42,838 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 [2022-11-25 22:30:42,840 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 55 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:42,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 212 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 22:30:42,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-25 22:30:42,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2022-11-25 22:30:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 84 states have internal predecessors, (92), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:30:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2022-11-25 22:30:42,866 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 4 [2022-11-25 22:30:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:42,867 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2022-11-25 22:30:42,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:42,868 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2022-11-25 22:30:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 22:30:42,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:42,870 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] [2022-11-25 22:30:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:30:42,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:30:42,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:42,882 INFO L85 PathProgramCache]: Analyzing trace with hash 372678044, now seen corresponding path program 1 times [2022-11-25 22:30:42,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:42,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282508959] [2022-11-25 22:30:42,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:42,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:43,120 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:30:43,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890237261] [2022-11-25 22:30:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:43,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:43,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:43,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:30:43,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:30:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:44,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:30:44,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:44,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:44,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:44,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282508959] [2022-11-25 22:30:44,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:30:44,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890237261] [2022-11-25 22:30:44,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890237261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:44,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:44,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:30:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902339093] [2022-11-25 22:30:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:44,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:44,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:44,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:44,275 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:45,695 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-11-25 22:30:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:45,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 22:30:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:45,702 INFO L225 Difference]: With dead ends: 90 [2022-11-25 22:30:45,702 INFO L226 Difference]: Without dead ends: 89 [2022-11-25 22:30:45,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:45,704 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 60 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:45,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 22:30:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-25 22:30:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-25 22:30:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.3) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:30:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-11-25 22:30:45,717 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 27 [2022-11-25 22:30:45,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:45,718 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-11-25 22:30:45,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-11-25 22:30:45,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 22:30:45,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:45,719 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] [2022-11-25 22:30:45,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:30:45,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:45,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:30:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1331882116, now seen corresponding path program 1 times [2022-11-25 22:30:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:45,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095432850] [2022-11-25 22:30:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:45,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:46,137 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:30:46,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467779479] [2022-11-25 22:30:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:46,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:46,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:46,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:30:46,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:30:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:47,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:30:47,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:47,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:47,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:47,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095432850] [2022-11-25 22:30:47,203 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:30:47,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467779479] [2022-11-25 22:30:47,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467779479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:47,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:47,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:30:47,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257440120] [2022-11-25 22:30:47,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:47,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:47,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:47,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:47,213 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:49,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:51,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:51,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:51,377 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2022-11-25 22:30:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:51,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 22:30:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:51,387 INFO L225 Difference]: With dead ends: 139 [2022-11-25 22:30:51,387 INFO L226 Difference]: Without dead ends: 138 [2022-11-25 22:30:51,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:51,389 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 29 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:51,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 317 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:30:51,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-25 22:30:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-11-25 22:30:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.2241379310344827) internal successors, (142), 129 states have internal predecessors, (142), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:30:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2022-11-25 22:30:51,429 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 28 [2022-11-25 22:30:51,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:51,433 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-11-25 22:30:51,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:51,433 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2022-11-25 22:30:51,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 22:30:51,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:51,435 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] [2022-11-25 22:30:51,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:30:51,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:51,639 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:30:51,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:51,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1191648227, now seen corresponding path program 1 times [2022-11-25 22:30:51,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:51,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459381848] [2022-11-25 22:30:51,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:51,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:51,858 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:30:51,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296993354] [2022-11-25 22:30:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:51,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:51,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:30:51,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:30:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:52,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:30:52,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:53,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:30:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:53,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:53,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459381848] [2022-11-25 22:30:53,161 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:30:53,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296993354] [2022-11-25 22:30:53,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296993354] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:30:53,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1373014028] [2022-11-25 22:30:53,185 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-25 22:30:53,185 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:30:53,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:30:53,197 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:30:53,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:30:53,369 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:30:53,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 22:30:53,405 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:30:53,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 22:30:53,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:30:53,478 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:30:53,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:30:53,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:30:53,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:30:53,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:30:53,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:53,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:30:54,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:30:54,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:30:54,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:30:54,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:30:54,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:30:54,529 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:30:54,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 22:30:54,593 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:30:54,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:30:54,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:30:54,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 22:30:54,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:30:54,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:30:54,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:54,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:30:55,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:30:55,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:30:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:30:55,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:30:55,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:30:55,514 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:31:04,232 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 224 DAG size of output: 208 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:31:11,966 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 240 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:31:11,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1373014028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:11,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:31:11,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4] total 14 [2022-11-25 22:31:11,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223084540] [2022-11-25 22:31:11,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:11,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:31:11,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:31:11,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=130, Unknown=2, NotChecked=0, Total=210 [2022-11-25 22:31:11,985 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 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 22:31:15,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:31:18,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:31:20,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:21,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:22,587 INFO L93 Difference]: Finished difference Result 264 states and 336 transitions. [2022-11-25 22:31:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:31:22,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 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 31 [2022-11-25 22:31:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:22,597 INFO L225 Difference]: With dead ends: 264 [2022-11-25 22:31:22,597 INFO L226 Difference]: Without dead ends: 133 [2022-11-25 22:31:22,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=89, Invalid=149, Unknown=2, NotChecked=0, Total=240 [2022-11-25 22:31:22,599 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:22,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 253 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2022-11-25 22:31:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-25 22:31:22,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-25 22:31:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 124 states have internal predecessors, (135), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:31:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 167 transitions. [2022-11-25 22:31:22,632 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 167 transitions. Word has length 31 [2022-11-25 22:31:22,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:22,633 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 167 transitions. [2022-11-25 22:31:22,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 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 22:31:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 167 transitions. [2022-11-25 22:31:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 22:31:22,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:22,640 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:31:22,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:31:22,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:31:22,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:31:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1649700214, now seen corresponding path program 1 times [2022-11-25 22:31:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:22,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38014563] [2022-11-25 22:31:22,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:22,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:22,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:31:22,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837981324] [2022-11-25 22:31:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:22,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:31:22,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:31:22,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:31:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:31:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:23,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:31:23,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:31:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:31:23,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:31:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:31:23,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:23,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38014563] [2022-11-25 22:31:23,936 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:31:23,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837981324] [2022-11-25 22:31:23,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837981324] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:31:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1260675621] [2022-11-25 22:31:23,944 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-25 22:31:23,945 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:31:23,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:31:23,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:31:23,946 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:31:24,034 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:31:24,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 22:31:24,090 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:31:24,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:31:24,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:31:24,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:31:24,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:31:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:31:24,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:31:24,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:31:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:31:24,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:31:24,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:31:24,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:31:24,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:31:24,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:31:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:31:24,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:24,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:31:25,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:31:25,119 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:31:25,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-25 22:31:25,241 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:31:25,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 22:31:25,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:31:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:25,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:31:26,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:31:26,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:31:26,136 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:31:26,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:31:26,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 22:31:26,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:31:26,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:31:26,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:31:26,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:31:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:31:26,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:31:26,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:31:26,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:31:26,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:31:26,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:26,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:31:26,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:31:27,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:31:27,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:31:27,187 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:31:27,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 22:31:27,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-25 22:31:27,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:31:27,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:31:27,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:31:27,450 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-25 22:31:27,586 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:31:35,639 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 224 DAG size of output: 208 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:31:44,123 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 240 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:31:56,563 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:32:09,289 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 273 DAG size of output: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:32:22,250 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 273 DAG size of output: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:32:23,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1260675621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:23,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:32:23,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5] total 20 [2022-11-25 22:32:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332563313] [2022-11-25 22:32:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:23,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:32:23,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:23,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:32:23,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=259, Unknown=10, NotChecked=0, Total=380 [2022-11-25 22:32:23,460 INFO L87 Difference]: Start difference. First operand 133 states and 167 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:32:25,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:27,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:29,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:32,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:34,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:36,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:38,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:40,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:42,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:47,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:50,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:32:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:50,256 INFO L93 Difference]: Finished difference Result 251 states and 320 transitions. [2022-11-25 22:32:50,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 22:32:50,268 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-25 22:32:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:50,269 INFO L225 Difference]: With dead ends: 251 [2022-11-25 22:32:50,269 INFO L226 Difference]: Without dead ends: 135 [2022-11-25 22:32:50,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 55.9s TimeCoverageRelationStatistics Valid=111, Invalid=259, Unknown=10, NotChecked=0, Total=380 [2022-11-25 22:32:50,271 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:50,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 408 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 10 Unknown, 0 Unchecked, 26.7s Time] [2022-11-25 22:32:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-25 22:32:50,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-11-25 22:32:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 125 states have internal predecessors, (137), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:32:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2022-11-25 22:32:50,305 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 44 [2022-11-25 22:32:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:50,305 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2022-11-25 22:32:50,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:32:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2022-11-25 22:32:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 22:32:50,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:50,307 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:32:50,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 22:32:50,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:50,517 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:32:50,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:50,517 INFO L85 PathProgramCache]: Analyzing trace with hash -850590074, now seen corresponding path program 1 times [2022-11-25 22:32:50,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:50,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204932890] [2022-11-25 22:32:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:50,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:50,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:32:50,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068094946] [2022-11-25 22:32:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:50,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:50,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:50,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:32:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:51,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:32:51,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:32:51,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:32:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:32:51,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204932890] [2022-11-25 22:32:51,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:32:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068094946] [2022-11-25 22:32:51,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068094946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:32:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [473768364] [2022-11-25 22:32:51,577 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-25 22:32:51,578 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:32:51,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:32:51,579 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:32:51,579 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:32:51,644 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:32:51,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 22:32:51,697 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:32:51,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 22:32:51,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:32:51,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:32:51,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:32:51,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:32:51,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:32:51,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:51,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:32:52,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:32:52,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:32:52,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:32:52,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:32:52,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:32:52,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:32:52,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:32:52,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:32:52,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:32:52,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:32:52,614 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:32:52,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 22:32:52,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-25 22:32:52,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:52,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:32:52,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:32:52,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:32:52,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:32:52,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:32:52,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-25 22:32:52,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:32:52,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:32:52,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:32:52,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:32:53,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:32:53,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:32:53,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:32:53,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:53,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:32:53,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:32:53,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:32:54,440 INFO L217 Elim1Store]: Index analysis took 774 ms [2022-11-25 22:32:59,172 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-11-25 22:32:59,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752687 treesize of output 10752705 [2022-11-25 22:33:01,641 INFO L217 Elim1Store]: Index analysis took 2276 ms [2022-11-25 22:33:01,660 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-25 22:33:01,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 10752682 treesize of output 10752685 [2022-11-25 22:33:13,399 INFO L217 Elim1Store]: Index analysis took 1163 ms [2022-11-25 22:34:01,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:02,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:02,158 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 65 more [2022-11-25 22:34:02,161 INFO L158 Benchmark]: Toolchain (without parser) took 206197.89ms. Allocated memory was 176.2MB in the beginning and 12.2GB in the end (delta: 12.0GB). Free memory was 142.3MB in the beginning and 10.7GB in the end (delta: -10.5GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2022-11-25 22:34:02,161 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 176.2MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:34:02,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.06ms. Allocated memory is still 176.2MB. Free memory was 142.1MB in the beginning and 115.1MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 22:34:02,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.81ms. Allocated memory is still 176.2MB. Free memory was 114.9MB in the beginning and 109.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 22:34:02,162 INFO L158 Benchmark]: Boogie Preprocessor took 143.96ms. Allocated memory is still 176.2MB. Free memory was 109.5MB in the beginning and 104.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:34:02,163 INFO L158 Benchmark]: RCFGBuilder took 2316.78ms. Allocated memory is still 176.2MB. Free memory was 104.4MB in the beginning and 92.9MB in the end (delta: 11.5MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2022-11-25 22:34:02,163 INFO L158 Benchmark]: TraceAbstraction took 202749.23ms. Allocated memory was 176.2MB in the beginning and 12.2GB in the end (delta: 12.0GB). Free memory was 92.9MB in the beginning and 10.7GB in the end (delta: -10.6GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2022-11-25 22:34:02,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 176.2MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.06ms. Allocated memory is still 176.2MB. Free memory was 142.1MB in the beginning and 115.1MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.81ms. Allocated memory is still 176.2MB. Free memory was 114.9MB in the beginning and 109.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.96ms. Allocated memory is still 176.2MB. Free memory was 109.5MB in the beginning and 104.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2316.78ms. Allocated memory is still 176.2MB. Free memory was 104.4MB in the beginning and 92.9MB in the end (delta: 11.5MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * TraceAbstraction took 202749.23ms. Allocated memory was 176.2MB in the beginning and 12.2GB in the end (delta: 12.0GB). Free memory was 92.9MB in the beginning and 10.7GB in the end (delta: -10.6GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127343 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 22:34:02,395 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-25 22:34:02,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur --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 a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 --- 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 22:34:05,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:34:05,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:34:05,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:34:05,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:34:05,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:34:05,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:34:05,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:34:05,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:34:05,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:34:05,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:34:05,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:34:05,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:34:05,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:34:05,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:34:05,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:34:05,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:34:05,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:34:05,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:34:05,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:34:05,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:34:05,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:34:05,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:34:05,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:34:05,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:34:05,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:34:05,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:34:05,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:34:05,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:34:05,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:34:05,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:34:05,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:34:05,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:34:05,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:34:05,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:34:05,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:34:05,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:34:05,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:34:05,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:34:05,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:34:05,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:34:05,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-25 22:34:05,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:34:05,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:34:05,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:34:05,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:34:05,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:34:05,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:34:05,367 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:34:05,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:34:05,367 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:34:05,367 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:34:05,369 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:34:05,369 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:34:05,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:34:05,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:34:05,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:34:05,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:34:05,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:34:05,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:34:05,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:34:05,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:34:05,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:34:05,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:34:05,379 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:34:05,380 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:34:05,380 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:34:05,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:34:05,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:34:05,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:34:05,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:34:05,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:34:05,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:34:05,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:05,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:34:05,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:34:05,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:34:05,383 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:34:05,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:34:05,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:34:05,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:34:05,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:34:05,384 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 [2022-11-25 22:34:05,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:34:05,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:34:05,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:34:05,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:34:05,851 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:34:05,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2022-11-25 22:34:09,462 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:34:09,863 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:34:09,875 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2022-11-25 22:34:09,889 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data/3b73335cc/466e1f160199410c82bf5a1c06054f8b/FLAG55bea96c5 [2022-11-25 22:34:09,906 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/data/3b73335cc/466e1f160199410c82bf5a1c06054f8b [2022-11-25 22:34:09,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:34:09,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:34:09,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:09,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:34:09,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:34:09,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:09" (1/1) ... [2022-11-25 22:34:09,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c964ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:09, skipping insertion in model container [2022-11-25 22:34:09,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:09" (1/1) ... [2022-11-25 22:34:09,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:34:10,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:34:10,596 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-25 22:34:10,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:10,768 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 22:34:10,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:34:10,822 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-25 22:34:10,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:10,933 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:34:10,993 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_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-25 22:34:11,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:11,128 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:34:11,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11 WrapperNode [2022-11-25 22:34:11,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:11,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:11,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:34:11,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:34:11,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,217 INFO L138 Inliner]: procedures = 180, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 624 [2022-11-25 22:34:11,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:11,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:34:11,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:34:11,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:34:11,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,324 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:34:11,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:34:11,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:34:11,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:34:11,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (1/1) ... [2022-11-25 22:34:11,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:11,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:11,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:34:11,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:34:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-25 22:34:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 22:34:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:34:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:34:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:34:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:34:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:34:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:34:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:34:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:34:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:34:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:34:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 22:34:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:34:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:34:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:34:11,716 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:34:11,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:34:20,145 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:34:20,155 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:34:20,155 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-25 22:34:20,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:34:20 BoogieIcfgContainer [2022-11-25 22:34:20,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:34:20,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:34:20,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:34:20,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:34:20,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:34:09" (1/3) ... [2022-11-25 22:34:20,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16148ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:34:20, skipping insertion in model container [2022-11-25 22:34:20,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:11" (2/3) ... [2022-11-25 22:34:20,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16148ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:34:20, skipping insertion in model container [2022-11-25 22:34:20,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:34:20" (3/3) ... [2022-11-25 22:34:20,171 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i [2022-11-25 22:34:20,195 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:34:20,196 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 22:34:20,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:34:20,289 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;@4ce15f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:34:20,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 22:34:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:34:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:34:20,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:20,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:34:20,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:20,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-11-25 22:34:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:20,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722200989] [2022-11-25 22:34:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:20,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:20,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:20,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:20,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:34:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:20,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:34:20,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:20,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:20,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:20,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722200989] [2022-11-25 22:34:20,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722200989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:20,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:20,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:34:20,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320547359] [2022-11-25 22:34:20,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:20,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:34:20,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:34:20,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:34:20,668 INFO L87 Difference]: Start difference. First operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:34:20,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:20,750 INFO L93 Difference]: Finished difference Result 268 states and 444 transitions. [2022-11-25 22:34:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:34:20,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 22:34:20,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:20,774 INFO L225 Difference]: With dead ends: 268 [2022-11-25 22:34:20,774 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 22:34:20,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 22:34:20,785 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:20,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:34:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 22:34:20,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-11-25 22:34:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 124 states have internal predecessors, (150), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:34:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 176 transitions. [2022-11-25 22:34:20,882 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 176 transitions. Word has length 6 [2022-11-25 22:34:20,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:20,883 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 176 transitions. [2022-11-25 22:34:20,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:34:20,883 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 176 transitions. [2022-11-25 22:34:20,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:34:20,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:20,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:34:20,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:21,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:21,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:21,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:21,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-11-25 22:34:21,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:21,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960049976] [2022-11-25 22:34:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:21,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:21,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:21,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:34:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:21,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:34:21,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:21,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:21,315 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:21,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960049976] [2022-11-25 22:34:21,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960049976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:21,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:21,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:34:21,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997407891] [2022-11-25 22:34:21,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:21,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:34:21,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:34:21,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:34:21,320 INFO L87 Difference]: Start difference. First operand 130 states and 176 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:34:22,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 22:34:24,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:34:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:24,663 INFO L93 Difference]: Finished difference Result 254 states and 346 transitions. [2022-11-25 22:34:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:34:24,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 22:34:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:24,666 INFO L225 Difference]: With dead ends: 254 [2022-11-25 22:34:24,666 INFO L226 Difference]: Without dead ends: 220 [2022-11-25 22:34:24,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:34:24,669 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 106 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:24,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 340 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 22:34:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-25 22:34:24,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 135. [2022-11-25 22:34:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 129 states have internal predecessors, (155), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:34:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2022-11-25 22:34:24,689 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 181 transitions. Word has length 6 [2022-11-25 22:34:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:24,689 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 181 transitions. [2022-11-25 22:34:24,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:34:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 181 transitions. [2022-11-25 22:34:24,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:34:24,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:24,692 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:24,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 22:34:24,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:24,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:24,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1695874247, now seen corresponding path program 1 times [2022-11-25 22:34:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:24,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302152002] [2022-11-25 22:34:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:24,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:24,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:24,912 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:24,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 22:34:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:26,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:34:26,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:26,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:26,543 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:26,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302152002] [2022-11-25 22:34:26,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302152002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:26,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:26,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:34:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050686289] [2022-11-25 22:34:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:26,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:34:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:34:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:34:26,547 INFO L87 Difference]: Start difference. First operand 135 states and 181 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 22:34:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:26,725 INFO L93 Difference]: Finished difference Result 270 states and 365 transitions. [2022-11-25 22:34:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:34:26,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-11-25 22:34:26,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:26,728 INFO L225 Difference]: With dead ends: 270 [2022-11-25 22:34:26,728 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 22:34:26,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:26,731 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 135 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:26,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 327 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:34:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 22:34:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2022-11-25 22:34:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 132 states have internal predecessors, (150), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:34:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 176 transitions. [2022-11-25 22:34:26,784 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 176 transitions. Word has length 57 [2022-11-25 22:34:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:26,785 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 176 transitions. [2022-11-25 22:34:26,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 22:34:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 176 transitions. [2022-11-25 22:34:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:34:26,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:26,789 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:26,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:26,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:26,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:26,992 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-11-25 22:34:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:26,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642004298] [2022-11-25 22:34:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:26,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:26,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:26,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:27,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 22:34:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:28,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:34:28,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:28,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:28,734 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:28,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642004298] [2022-11-25 22:34:28,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642004298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:28,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:28,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:34:28,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209990571] [2022-11-25 22:34:28,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:28,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:34:28,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:28,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:34:28,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:34:28,738 INFO L87 Difference]: Start difference. First operand 138 states and 176 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 22:34:29,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:29,657 INFO L93 Difference]: Finished difference Result 308 states and 389 transitions. [2022-11-25 22:34:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:34:29,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-11-25 22:34:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:29,666 INFO L225 Difference]: With dead ends: 308 [2022-11-25 22:34:29,666 INFO L226 Difference]: Without dead ends: 177 [2022-11-25 22:34:29,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:34:29,668 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 11 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:29,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 22:34:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-25 22:34:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-25 22:34:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2215189873417722) internal successors, (193), 171 states have internal predecessors, (193), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:34:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 219 transitions. [2022-11-25 22:34:29,687 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 219 transitions. Word has length 57 [2022-11-25 22:34:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:29,688 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 219 transitions. [2022-11-25 22:34:29,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 22:34:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 219 transitions. [2022-11-25 22:34:29,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 22:34:29,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:29,691 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:29,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:29,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:29,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:29,913 INFO L85 PathProgramCache]: Analyzing trace with hash 548813316, now seen corresponding path program 1 times [2022-11-25 22:34:29,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:29,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441738894] [2022-11-25 22:34:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:29,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:29,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:29,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:29,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:34:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:30,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:34:30,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:30,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:30,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:30,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441738894] [2022-11-25 22:34:30,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441738894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:30,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:30,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:34:30,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894798229] [2022-11-25 22:34:30,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:30,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:34:30,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:30,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:34:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:34:30,834 INFO L87 Difference]: Start difference. First operand 177 states and 219 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:34:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:30,909 INFO L93 Difference]: Finished difference Result 311 states and 394 transitions. [2022-11-25 22:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:34:30,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2022-11-25 22:34:30,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:30,912 INFO L225 Difference]: With dead ends: 311 [2022-11-25 22:34:30,912 INFO L226 Difference]: Without dead ends: 180 [2022-11-25 22:34:30,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:30,914 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:30,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 482 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:34:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-25 22:34:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-25 22:34:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 160 states have (on average 1.225) internal successors, (196), 174 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-25 22:34:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2022-11-25 22:34:30,929 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 72 [2022-11-25 22:34:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:30,930 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2022-11-25 22:34:30,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:34:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2022-11-25 22:34:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:34:30,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:30,932 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-11-25 22:34:30,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:31,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:31,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:31,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash 881968866, now seen corresponding path program 1 times [2022-11-25 22:34:31,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:31,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557565335] [2022-11-25 22:34:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:31,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:31,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:31,167 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:31,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 22:34:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:32,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:34:32,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:34:32,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:34:32,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:32,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557565335] [2022-11-25 22:34:32,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557565335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:32,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1068992774] [2022-11-25 22:34:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:32,348 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:34:32,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:34:32,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:34:32,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-25 22:34:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:33,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:34:33,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:34:33,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:34:33,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1068992774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:33,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522616913] [2022-11-25 22:34:33,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:33,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:33,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:33,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:34:33,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:34:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:34,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:34:34,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:34:34,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:34,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522616913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:34,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-25 22:34:34,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5, 5] total 10 [2022-11-25 22:34:34,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141061605] [2022-11-25 22:34:34,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:34,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:34:34,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:34,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:34:34,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:34:34,984 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-11-25 22:34:37,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 22:34:38,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:34:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:38,825 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2022-11-25 22:34:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:34:38,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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 74 [2022-11-25 22:34:38,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:38,828 INFO L225 Difference]: With dead ends: 227 [2022-11-25 22:34:38,828 INFO L226 Difference]: Without dead ends: 226 [2022-11-25 22:34:38,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:34:38,830 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 37 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:38,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 475 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 22:34:38,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-25 22:34:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-11-25 22:34:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 203 states have (on average 1.2266009852216748) internal successors, (249), 217 states have internal predecessors, (249), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-25 22:34:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 283 transitions. [2022-11-25 22:34:38,845 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 283 transitions. Word has length 74 [2022-11-25 22:34:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:38,846 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 283 transitions. [2022-11-25 22:34:38,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-11-25 22:34:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 283 transitions. [2022-11-25 22:34:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 22:34:38,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:38,848 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-11-25 22:34:38,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:39,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:39,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-25 22:34:39,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:39,459 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:39,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:39,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1992697225, now seen corresponding path program 1 times [2022-11-25 22:34:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:39,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133533938] [2022-11-25 22:34:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:39,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:39,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:39,463 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:39,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 22:34:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:40,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:34:40,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:34:40,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:34:40,616 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:40,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133533938] [2022-11-25 22:34:40,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133533938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:40,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [45382845] [2022-11-25 22:34:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:40,617 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:34:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:34:40,618 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:34:40,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-25 22:34:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:42,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:34:42,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:34:42,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:34:42,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [45382845] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:42,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948353774] [2022-11-25 22:34:42,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:42,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:42,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:42,268 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:34:42,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:34:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:43,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:34:43,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:43,090 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:34:43,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:34:43,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948353774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:43,232 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:34:43,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2022-11-25 22:34:43,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268771175] [2022-11-25 22:34:43,233 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:34:43,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:34:43,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:34:43,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:34:43,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:34:43,235 INFO L87 Difference]: Start difference. First operand 226 states and 283 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:34:43,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:43,786 INFO L93 Difference]: Finished difference Result 418 states and 544 transitions. [2022-11-25 22:34:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 22:34:43,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-11-25 22:34:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:43,789 INFO L225 Difference]: With dead ends: 418 [2022-11-25 22:34:43,790 INFO L226 Difference]: Without dead ends: 241 [2022-11-25 22:34:43,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-11-25 22:34:43,791 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 20 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:43,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 952 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:34:43,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-25 22:34:43,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2022-11-25 22:34:43,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 213 states have (on average 1.2535211267605635) internal successors, (267), 227 states have internal predecessors, (267), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-25 22:34:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 301 transitions. [2022-11-25 22:34:43,809 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 301 transitions. Word has length 78 [2022-11-25 22:34:43,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:43,809 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 301 transitions. [2022-11-25 22:34:43,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:34:43,810 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 301 transitions. [2022-11-25 22:34:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 22:34:43,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:43,812 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 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] [2022-11-25 22:34:43,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:44,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:44,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:44,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:44,425 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 22:34:44,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:44,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1553229867, now seen corresponding path program 2 times [2022-11-25 22:34:44,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:34:44,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118262858] [2022-11-25 22:34:44,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:34:44,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:34:44,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:34:44,428 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:34:44,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 22:34:45,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:34:45,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:34:45,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:34:45,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:34:45,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:34:45,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:34:45,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118262858] [2022-11-25 22:34:45,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118262858] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:45,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [727410016] [2022-11-25 22:34:45,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:34:45,912 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:34:45,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:34:45,915 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:34:45,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da6b220-14ad-4c3b-9676-78c5f2e4d53e/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process