./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI --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 b06fba6fbf61d996c1af57497d908c6dba492febf0212a36ee7b28f5806d365e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:45:00,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:45:00,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:45:00,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:45:00,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:45:00,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:45:00,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:45:00,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:45:00,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:45:00,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:45:00,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:45:00,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:45:00,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:45:00,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:45:00,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:45:00,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:45:00,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:45:00,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:45:00,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:45:00,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:45:00,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:45:00,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:45:00,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:45:00,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:45:00,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:45:00,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:45:00,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:45:00,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:45:00,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:45:00,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:45:00,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:45:00,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:45:00,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:45:00,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:45:00,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:45:00,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:45:00,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:45:00,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:45:00,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:45:00,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:45:00,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:45:00,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 01:45:00,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:45:00,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:45:00,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:45:00,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:45:00,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:45:00,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:45:00,238 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:45:00,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:45:00,239 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:45:00,239 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:45:00,240 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:45:00,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:45:00,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:45:00,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:45:00,241 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:45:00,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:45:00,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:45:00,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:45:00,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:45:00,243 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:45:00,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:45:00,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:45:00,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:45:00,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:45:00,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:45:00,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:45:00,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:45:00,245 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 01:45:00,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:45:00,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:45:00,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:45:00,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:45:00,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:45:00,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:45:00,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:45:00,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:45:00,247 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:45:00,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:45:00,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:45:00,248 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:45:00,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:45:00,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:45:00,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:45:00,249 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_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b06fba6fbf61d996c1af57497d908c6dba492febf0212a36ee7b28f5806d365e [2022-11-03 01:45:00,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:45:00,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:45:00,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:45:00,625 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:45:00,626 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:45:00,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i [2022-11-03 01:45:00,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/data/4e3c5235e/3f66fdd668c54cdbaad4fcfb966f533d/FLAGd8ffe2124 [2022-11-03 01:45:01,388 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:45:01,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i [2022-11-03 01:45:01,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/data/4e3c5235e/3f66fdd668c54cdbaad4fcfb966f533d/FLAGd8ffe2124 [2022-11-03 01:45:01,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/data/4e3c5235e/3f66fdd668c54cdbaad4fcfb966f533d [2022-11-03 01:45:01,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:45:01,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:45:01,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:45:01,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:45:01,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:45:01,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:45:01" (1/1) ... [2022-11-03 01:45:01,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c1d8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:01, skipping insertion in model container [2022-11-03 01:45:01,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:45:01" (1/1) ... [2022-11-03 01:45:01,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:45:01,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:45:02,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i[33022,33035] [2022-11-03 01:45:02,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:45:02,558 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:45:02,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-1.i[33022,33035] [2022-11-03 01:45:02,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:45:02,759 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:45:02,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02 WrapperNode [2022-11-03 01:45:02,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:45:02,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:45:02,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:45:02,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:45:02,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:02,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:02,923 INFO L138 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2179 [2022-11-03 01:45:02,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:45:02,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:45:02,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:45:02,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:45:02,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:02,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:02,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:02,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:03,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:03,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:03,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:03,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:03,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:45:03,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:45:03,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:45:03,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:45:03,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (1/1) ... [2022-11-03 01:45:03,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:45:03,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:03,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:45:03,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:45:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-11-03 01:45:03,317 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-11-03 01:45:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:45:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 01:45:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 01:45:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:45:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:45:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:45:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:45:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:45:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:45:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:45:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 01:45:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:45:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:45:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:45:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:45:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:45:03,599 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:45:03,601 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:45:06,594 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:45:07,544 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:45:07,545 INFO L300 CfgBuilder]: Removed 151 assume(true) statements. [2022-11-03 01:45:07,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:45:07 BoogieIcfgContainer [2022-11-03 01:45:07,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:45:07,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:45:07,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:45:07,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:45:07,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:45:01" (1/3) ... [2022-11-03 01:45:07,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36530065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:45:07, skipping insertion in model container [2022-11-03 01:45:07,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:02" (2/3) ... [2022-11-03 01:45:07,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36530065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:45:07, skipping insertion in model container [2022-11-03 01:45:07,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:45:07" (3/3) ... [2022-11-03 01:45:07,562 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test10-1.i [2022-11-03 01:45:07,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:45:07,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-03 01:45:07,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:45:07,675 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;@14d2d7fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:45:07,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-03 01:45:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 235 states have (on average 1.8340425531914895) internal successors, (431), 245 states have internal predecessors, (431), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 01:45:07,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 01:45:07,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:07,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 01:45:07,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:07,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash 56325447, now seen corresponding path program 1 times [2022-11-03 01:45:07,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:07,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599258626] [2022-11-03 01:45:07,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:07,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:07,874 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:07,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743030195] [2022-11-03 01:45:07,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:07,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:07,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:07,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:07,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:45:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:08,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 01:45:08,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:08,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2022-11-03 01:45:08,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-03 01:45:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:45:08,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 01:45:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:45:08,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:08,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:08,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599258626] [2022-11-03 01:45:08,349 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:45:08,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743030195] [2022-11-03 01:45:08,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743030195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:08,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:08,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:45:08,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257085032] [2022-11-03 01:45:08,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:08,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:45:08,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:08,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:45:08,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:45:08,388 INFO L87 Difference]: Start difference. First operand has 259 states, 235 states have (on average 1.8340425531914895) internal successors, (431), 245 states have internal predecessors, (431), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-03 01:45:11,329 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 [] [2022-11-03 01:45:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:11,888 INFO L93 Difference]: Finished difference Result 547 states and 974 transitions. [2022-11-03 01:45:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:45:11,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2022-11-03 01:45:11,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:11,904 INFO L225 Difference]: With dead ends: 547 [2022-11-03 01:45:11,904 INFO L226 Difference]: Without dead ends: 287 [2022-11-03 01:45:11,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:45:11,912 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 29 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:11,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 775 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 01:45:11,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-03 01:45:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 261. [2022-11-03 01:45:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 238 states have (on average 1.218487394957983) internal successors, (290), 248 states have internal predecessors, (290), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 01:45:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 317 transitions. [2022-11-03 01:45:12,008 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 317 transitions. Word has length 4 [2022-11-03 01:45:12,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:12,009 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 317 transitions. [2022-11-03 01:45:12,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-03 01:45:12,009 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 317 transitions. [2022-11-03 01:45:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 01:45:12,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:12,011 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] [2022-11-03 01:45:12,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:12,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 01:45:12,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:12,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:12,239 INFO L85 PathProgramCache]: Analyzing trace with hash 433822891, now seen corresponding path program 1 times [2022-11-03 01:45:12,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:12,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301833493] [2022-11-03 01:45:12,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:12,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:45:12,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:12,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301833493] [2022-11-03 01:45:12,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301833493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:12,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:12,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:45:12,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425332269] [2022-11-03 01:45:12,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:12,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:45:12,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:12,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:45:12,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:45:12,815 INFO L87 Difference]: Start difference. First operand 261 states and 317 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:45:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:15,669 INFO L93 Difference]: Finished difference Result 410 states and 503 transitions. [2022-11-03 01:45:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:45:15,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 01:45:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:15,672 INFO L225 Difference]: With dead ends: 410 [2022-11-03 01:45:15,672 INFO L226 Difference]: Without dead ends: 261 [2022-11-03 01:45:15,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:45:15,674 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 2 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:15,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 787 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 01:45:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-11-03 01:45:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-11-03 01:45:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 238 states have (on average 1.2142857142857142) internal successors, (289), 248 states have internal predecessors, (289), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 01:45:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 316 transitions. [2022-11-03 01:45:15,698 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 316 transitions. Word has length 20 [2022-11-03 01:45:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:15,699 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 316 transitions. [2022-11-03 01:45:15,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:45:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 316 transitions. [2022-11-03 01:45:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 01:45:15,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:15,700 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] [2022-11-03 01:45:15,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:45:15,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash -649685512, now seen corresponding path program 1 times [2022-11-03 01:45:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:15,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304737755] [2022-11-03 01:45:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:15,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:15,864 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:15,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159037973] [2022-11-03 01:45:15,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:15,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:15,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:15,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:15,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:45:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:16,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:45:16,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:45:16,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:16,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304737755] [2022-11-03 01:45:16,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:45:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159037973] [2022-11-03 01:45:16,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159037973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:16,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:16,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:45:16,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209336998] [2022-11-03 01:45:16,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:16,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:45:16,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:16,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:45:16,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:45:16,789 INFO L87 Difference]: Start difference. First operand 261 states and 316 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:45:19,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:45:20,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:45:20,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:20,792 INFO L93 Difference]: Finished difference Result 632 states and 764 transitions. [2022-11-03 01:45:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:45:20,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2022-11-03 01:45:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:20,795 INFO L225 Difference]: With dead ends: 632 [2022-11-03 01:45:20,795 INFO L226 Difference]: Without dead ends: 376 [2022-11-03 01:45:20,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:45:20,798 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 119 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:20,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 595 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 01:45:20,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-11-03 01:45:20,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 372. [2022-11-03 01:45:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 344 states have (on average 1.191860465116279) internal successors, (410), 354 states have internal predecessors, (410), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:45:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 447 transitions. [2022-11-03 01:45:20,817 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 447 transitions. Word has length 29 [2022-11-03 01:45:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:20,817 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 447 transitions. [2022-11-03 01:45:20,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:45:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 447 transitions. [2022-11-03 01:45:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 01:45:20,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:20,820 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] [2022-11-03 01:45:20,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:21,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:21,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:21,047 INFO L85 PathProgramCache]: Analyzing trace with hash -656242656, now seen corresponding path program 1 times [2022-11-03 01:45:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:21,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130027047] [2022-11-03 01:45:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:21,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:21,134 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:21,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865420165] [2022-11-03 01:45:21,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:21,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:21,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:21,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:45:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:21,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 01:45:21,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:21,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-03 01:45:21,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2022-11-03 01:45:21,878 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:45:21,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-03 01:45:21,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-11-03 01:45:21,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:45:21,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-03 01:45:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:45:22,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:22,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:22,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130027047] [2022-11-03 01:45:22,006 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:45:22,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865420165] [2022-11-03 01:45:22,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865420165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:22,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:22,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:45:22,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979036444] [2022-11-03 01:45:22,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:22,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:45:22,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:22,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:45:22,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:45:22,020 INFO L87 Difference]: Start difference. First operand 372 states and 447 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-03 01:45:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:26,705 INFO L93 Difference]: Finished difference Result 692 states and 833 transitions. [2022-11-03 01:45:26,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:45:26,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 42 [2022-11-03 01:45:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:26,708 INFO L225 Difference]: With dead ends: 692 [2022-11-03 01:45:26,708 INFO L226 Difference]: Without dead ends: 372 [2022-11-03 01:45:26,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:45:26,711 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 27 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:26,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 983 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 01:45:26,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-03 01:45:26,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2022-11-03 01:45:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 344 states have (on average 1.188953488372093) internal successors, (409), 354 states have internal predecessors, (409), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:45:26,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 446 transitions. [2022-11-03 01:45:26,733 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 446 transitions. Word has length 42 [2022-11-03 01:45:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:26,734 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 446 transitions. [2022-11-03 01:45:26,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-03 01:45:26,734 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 446 transitions. [2022-11-03 01:45:26,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:45:26,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:26,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:45:26,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:26,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:26,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:26,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:26,959 INFO L85 PathProgramCache]: Analyzing trace with hash -391626636, now seen corresponding path program 1 times [2022-11-03 01:45:26,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:26,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645151181] [2022-11-03 01:45:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:27,165 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:27,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246070855] [2022-11-03 01:45:27,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:27,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:27,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:27,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:27,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 01:45:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:28,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:45:28,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:45:28,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:28,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:28,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645151181] [2022-11-03 01:45:28,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:45:28,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246070855] [2022-11-03 01:45:28,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246070855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:28,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:28,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:45:28,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866508229] [2022-11-03 01:45:28,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:28,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:45:28,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:28,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:45:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:45:28,451 INFO L87 Difference]: Start difference. First operand 372 states and 446 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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) [2022-11-03 01:45:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:30,909 INFO L93 Difference]: Finished difference Result 838 states and 1006 transitions. [2022-11-03 01:45:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:45:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 63 [2022-11-03 01:45:30,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:30,912 INFO L225 Difference]: With dead ends: 838 [2022-11-03 01:45:30,913 INFO L226 Difference]: Without dead ends: 494 [2022-11-03 01:45:30,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:45:30,915 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 110 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:30,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 541 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 01:45:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-11-03 01:45:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 439. [2022-11-03 01:45:30,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 408 states have (on average 1.178921568627451) internal successors, (481), 418 states have internal predecessors, (481), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-03 01:45:30,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 524 transitions. [2022-11-03 01:45:30,943 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 524 transitions. Word has length 63 [2022-11-03 01:45:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:30,944 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 524 transitions. [2022-11-03 01:45:30,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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) [2022-11-03 01:45:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 524 transitions. [2022-11-03 01:45:30,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 01:45:30,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:30,952 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:45:30,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:31,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:31,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1574397001, now seen corresponding path program 1 times [2022-11-03 01:45:31,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:31,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487175709] [2022-11-03 01:45:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:31,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:31,259 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:31,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487503248] [2022-11-03 01:45:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:31,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:31,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:31,261 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:31,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 01:45:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:51,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:45:51,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:51,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:45:51,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:51,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:51,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487175709] [2022-11-03 01:45:51,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:45:51,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487503248] [2022-11-03 01:45:51,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487503248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:51,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:51,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:45:51,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469288109] [2022-11-03 01:45:51,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:51,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:45:51,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:51,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:45:51,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:45:51,306 INFO L87 Difference]: Start difference. First operand 439 states and 524 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:45:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:56,055 INFO L93 Difference]: Finished difference Result 858 states and 1035 transitions. [2022-11-03 01:45:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:45:56,055 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2022-11-03 01:45:56,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:56,058 INFO L225 Difference]: With dead ends: 858 [2022-11-03 01:45:56,058 INFO L226 Difference]: Without dead ends: 441 [2022-11-03 01:45:56,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:45:56,060 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:56,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 833 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 01:45:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-03 01:45:56,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-11-03 01:45:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 409 states have (on average 1.1809290953545233) internal successors, (483), 420 states have internal predecessors, (483), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-11-03 01:45:56,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 529 transitions. [2022-11-03 01:45:56,081 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 529 transitions. Word has length 76 [2022-11-03 01:45:56,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:56,082 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 529 transitions. [2022-11-03 01:45:56,082 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:45:56,082 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 529 transitions. [2022-11-03 01:45:56,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 01:45:56,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:56,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:45:56,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:56,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 01:45:56,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-03 01:45:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:56,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1409610589, now seen corresponding path program 1 times [2022-11-03 01:45:56,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:56,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906857159] [2022-11-03 01:45:56,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:56,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:56,412 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:45:56,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43896953] [2022-11-03 01:45:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:56,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:56,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:56,414 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:56,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35f22d4c-33c7-44da-84b7-229a6f6a2c67/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process