./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba --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 64bit --witnessprinter.graph.data.programhash 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- 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-b5237d8 [2022-11-22 00:30:39,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:30:39,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:30:39,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:30:39,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:30:39,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:30:39,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:30:39,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:30:39,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:30:39,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:30:39,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:30:39,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:30:39,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:30:39,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:30:39,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:30:39,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:30:39,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:30:39,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:30:39,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:30:39,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:30:39,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:30:39,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:30:39,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:30:39,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:30:39,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:30:39,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:30:39,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:30:39,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:30:39,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:30:39,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:30:39,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:30:39,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:30:39,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:30:39,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:30:39,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:30:39,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:30:39,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:30:39,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:30:39,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:30:39,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:30:39,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:30:39,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 00:30:39,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:30:39,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:30:39,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:30:39,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:30:39,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:30:39,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:30:39,223 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:30:39,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:30:39,223 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:30:39,223 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:30:39,224 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:30:39,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:30:39,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:30:39,225 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:30:39,225 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:30:39,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:30:39,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:30:39,226 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:30:39,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:30:39,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:30:39,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:30:39,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:30:39,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:30:39,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:30:39,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:30:39,228 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:30:39,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:30:39,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:30:39,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:30:39,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:30:39,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:30:39,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:30:39,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:30:39,230 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:30:39,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:30:39,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:30:39,231 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:30:39,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:30:39,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:30:39,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:30:39,232 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_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2022-11-22 00:30:39,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:30:39,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:30:39,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:30:39,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:30:39,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:30:39,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2022-11-22 00:30:42,585 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:30:42,843 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:30:42,844 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/sv-benchmarks/c/termination-crafted/Benghazi.c [2022-11-22 00:30:42,850 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/data/8215e852b/9c0b701a0b37406593df030381e27a36/FLAG837eddcb8 [2022-11-22 00:30:42,867 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/data/8215e852b/9c0b701a0b37406593df030381e27a36 [2022-11-22 00:30:42,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:30:42,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:30:42,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:30:42,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:30:42,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:30:42,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:30:42" (1/1) ... [2022-11-22 00:30:42,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6a276f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:42, skipping insertion in model container [2022-11-22 00:30:42,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:30:42" (1/1) ... [2022-11-22 00:30:42,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:30:42,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:30:43,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:30:43,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:30:43,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:30:43,073 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:30:43,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43 WrapperNode [2022-11-22 00:30:43,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:30:43,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:30:43,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:30:43,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:30:43,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,104 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-22 00:30:43,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:30:43,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:30:43,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:30:43,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:30:43,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:30:43,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:30:43,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:30:43,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:30:43,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (1/1) ... [2022-11-22 00:30:43,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:30:43,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:43,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:30:43,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:30:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:30:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:30:43,273 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:30:43,275 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:30:43,372 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:30:43,392 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:30:43,393 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:30:43,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:43 BoogieIcfgContainer [2022-11-22 00:30:43,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:30:43,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:30:43,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:30:43,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:30:43,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:30:42" (1/3) ... [2022-11-22 00:30:43,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c8668a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:30:43, skipping insertion in model container [2022-11-22 00:30:43,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:43" (2/3) ... [2022-11-22 00:30:43,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c8668a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:30:43, skipping insertion in model container [2022-11-22 00:30:43,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:43" (3/3) ... [2022-11-22 00:30:43,406 INFO L112 eAbstractionObserver]: Analyzing ICFG Benghazi.c [2022-11-22 00:30:43,426 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:30:43,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 00:30:43,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:30:43,485 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;@2baeb92f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:30:43,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 00:30:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 00:30:43,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:43,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 00:30:43,496 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)] === [2022-11-22 00:30:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:43,501 INFO L85 PathProgramCache]: Analyzing trace with hash 60896, now seen corresponding path program 1 times [2022-11-22 00:30:43,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:43,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115055225] [2022-11-22 00:30:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:43,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:43,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:43,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115055225] [2022-11-22 00:30:43,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115055225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:43,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:43,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:30:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487508455] [2022-11-22 00:30:43,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:43,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:43,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:43,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:43,720 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:43,762 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-22 00:30:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 00:30:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:43,776 INFO L225 Difference]: With dead ends: 20 [2022-11-22 00:30:43,776 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:30:43,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:43,787 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 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 [2022-11-22 00:30:43,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:43,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:30:43,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-22 00:30:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-22 00:30:43,822 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2022-11-22 00:30:43,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:43,823 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-22 00:30:43,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-22 00:30:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:30:43,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:43,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:30:43,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:30:43,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1887821, now seen corresponding path program 1 times [2022-11-22 00:30:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:43,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59483256] [2022-11-22 00:30:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:43,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:43,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59483256] [2022-11-22 00:30:43,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59483256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:43,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:43,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:30:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124964122] [2022-11-22 00:30:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:43,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:30:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:30:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:30:43,900 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. 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) [2022-11-22 00:30:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:43,953 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-22 00:30:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:30:43,954 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 [2022-11-22 00:30:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:43,955 INFO L225 Difference]: With dead ends: 22 [2022-11-22 00:30:43,955 INFO L226 Difference]: Without dead ends: 21 [2022-11-22 00:30:43,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:43,957 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:43,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-22 00:30:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2022-11-22 00:30:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-11-22 00:30:43,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-22 00:30:43,963 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-22 00:30:43,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:43,963 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-22 00:30:43,963 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) [2022-11-22 00:30:43,964 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-22 00:30:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:30:43,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:43,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:30:43,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:30:43,965 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)] === [2022-11-22 00:30:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:43,966 INFO L85 PathProgramCache]: Analyzing trace with hash 58522498, now seen corresponding path program 1 times [2022-11-22 00:30:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:43,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207414428] [2022-11-22 00:30:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:43,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:44,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207414428] [2022-11-22 00:30:44,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207414428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:44,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:44,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:30:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200738554] [2022-11-22 00:30:44,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:44,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:44,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:44,007 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:44,028 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-22 00:30:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 00:30:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:44,029 INFO L225 Difference]: With dead ends: 24 [2022-11-22 00:30:44,029 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 00:30:44,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:44,032 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:44,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 00:30:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2022-11-22 00:30:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-22 00:30:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-22 00:30:44,037 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2022-11-22 00:30:44,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:44,037 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-22 00:30:44,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-22 00:30:44,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:30:44,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:44,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 00:30:44,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:30:44,039 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)] === [2022-11-22 00:30:44,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1814197487, now seen corresponding path program 1 times [2022-11-22 00:30:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:44,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772193086] [2022-11-22 00:30:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:44,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772193086] [2022-11-22 00:30:44,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772193086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:44,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:44,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:30:44,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382772806] [2022-11-22 00:30:44,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:44,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:44,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:44,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:44,108 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-11-22 00:30:44,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:44,140 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-11-22 00:30:44,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:44,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-11-22 00:30:44,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:44,142 INFO L225 Difference]: With dead ends: 24 [2022-11-22 00:30:44,142 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 00:30:44,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:44,145 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:44,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:44,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 00:30:44,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-11-22 00:30:44,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 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) [2022-11-22 00:30:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-22 00:30:44,151 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2022-11-22 00:30:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:44,152 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-22 00:30:44,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-11-22 00:30:44,152 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-22 00:30:44,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:30:44,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:44,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:44,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:30:44,154 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)] === [2022-11-22 00:30:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:44,155 INFO L85 PathProgramCache]: Analyzing trace with hash 405547300, now seen corresponding path program 1 times [2022-11-22 00:30:44,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:44,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827821090] [2022-11-22 00:30:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:44,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827821090] [2022-11-22 00:30:44,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827821090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:44,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:44,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:30:44,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936318247] [2022-11-22 00:30:44,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:44,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:30:44,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:44,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:30:44,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:30:44,212 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:44,253 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-22 00:30:44,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:30:44,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 00:30:44,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:44,255 INFO L225 Difference]: With dead ends: 27 [2022-11-22 00:30:44,255 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 00:30:44,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:44,257 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:44,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:44,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 00:30:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2022-11-22 00:30:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-11-22 00:30:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-22 00:30:44,262 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2022-11-22 00:30:44,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:44,263 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-22 00:30:44,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-22 00:30:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:30:44,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:44,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:44,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:30:44,265 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:44,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:44,266 INFO L85 PathProgramCache]: Analyzing trace with hash -312935535, now seen corresponding path program 1 times [2022-11-22 00:30:44,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:44,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041866097] [2022-11-22 00:30:44,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:44,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041866097] [2022-11-22 00:30:44,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041866097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:44,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:44,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:30:44,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443188778] [2022-11-22 00:30:44,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:44,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:30:44,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:44,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:30:44,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:30:44,338 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 00:30:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:44,395 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-11-22 00:30:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:30:44,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-22 00:30:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:44,397 INFO L225 Difference]: With dead ends: 27 [2022-11-22 00:30:44,397 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 00:30:44,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:44,399 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:44,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:44,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 00:30:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2022-11-22 00:30:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-22 00:30:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-22 00:30:44,405 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2022-11-22 00:30:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:44,405 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-22 00:30:44,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 00:30:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-22 00:30:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:30:44,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:44,431 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:44,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:30:44,432 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)] === [2022-11-22 00:30:44,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:44,433 INFO L85 PathProgramCache]: Analyzing trace with hash -83337101, now seen corresponding path program 1 times [2022-11-22 00:30:44,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:44,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717065858] [2022-11-22 00:30:44,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:44,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717065858] [2022-11-22 00:30:44,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717065858] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:44,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590369926] [2022-11-22 00:30:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:44,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:44,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:44,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:30:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:30:44,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:44,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590369926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:44,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [605184306] [2022-11-22 00:30:44,843 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:30:44,844 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:44,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:44,853 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:44,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:45,271 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:45,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [605184306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:45,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:45,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 16 [2022-11-22 00:30:45,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740652210] [2022-11-22 00:30:45,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:45,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:30:45,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:45,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:30:45,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-11-22 00:30:45,697 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:45,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:45,761 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-11-22 00:30:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:30:45,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:30:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:45,763 INFO L225 Difference]: With dead ends: 21 [2022-11-22 00:30:45,763 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:30:45,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-11-22 00:30:45,765 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:45,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:45,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:30:45,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-22 00:30:45,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-22 00:30:45,770 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2022-11-22 00:30:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:45,771 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-22 00:30:45,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-22 00:30:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:30:45,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:45,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:45,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:45,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:45,979 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:45,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1517426005, now seen corresponding path program 1 times [2022-11-22 00:30:45,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369106904] [2022-11-22 00:30:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:46,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:46,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369106904] [2022-11-22 00:30:46,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369106904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:46,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072079711] [2022-11-22 00:30:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:46,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:46,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:46,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:46,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:30:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:46,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:30:46,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:46,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:46,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072079711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:46,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1179228017] [2022-11-22 00:30:46,248 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:30:46,248 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:46,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:46,248 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:46,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:46,426 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:46,853 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '513#(and (< 2147483646 |ULTIMATE.start_main_~d2~0#1|) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|)) (= |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~d1old~0#1|) (<= |ULTIMATE.start_main_~d1~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647))' at error location [2022-11-22 00:30:46,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:46,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:46,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 00:30:46,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921749480] [2022-11-22 00:30:46,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:46,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 00:30:46,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:46,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 00:30:46,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:30:46,855 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2022-11-22 00:30:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:47,007 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-22 00:30:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:30:47,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 12 [2022-11-22 00:30:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:47,008 INFO L225 Difference]: With dead ends: 37 [2022-11-22 00:30:47,008 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 00:30:47,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2022-11-22 00:30:47,009 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 40 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:47,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 18 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 00:30:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-22 00:30:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 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) [2022-11-22 00:30:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2022-11-22 00:30:47,016 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 12 [2022-11-22 00:30:47,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:47,016 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2022-11-22 00:30:47,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2022-11-22 00:30:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2022-11-22 00:30:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:30:47,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:47,018 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2022-11-22 00:30:47,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:47,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-22 00:30:47,223 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:47,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1759088233, now seen corresponding path program 1 times [2022-11-22 00:30:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:47,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964600633] [2022-11-22 00:30:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:47,395 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:47,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:47,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964600633] [2022-11-22 00:30:47,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964600633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:47,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963976166] [2022-11-22 00:30:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:47,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:47,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:47,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:47,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:30:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:47,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 00:30:47,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:47,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:47,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963976166] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:47,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1206647739] [2022-11-22 00:30:47,618 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:30:47,618 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:47,619 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:47,619 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:47,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:47,769 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:48,172 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '791#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-11-22 00:30:48,173 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:48,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:48,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-22 00:30:48,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501989150] [2022-11-22 00:30:48,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:48,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 00:30:48,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:48,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 00:30:48,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-22 00:30:48,175 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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) [2022-11-22 00:30:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:48,463 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2022-11-22 00:30:48,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 00:30:48,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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 [2022-11-22 00:30:48,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:48,464 INFO L225 Difference]: With dead ends: 68 [2022-11-22 00:30:48,464 INFO L226 Difference]: Without dead ends: 66 [2022-11-22 00:30:48,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:30:48,466 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 86 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:48,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 31 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-22 00:30:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2022-11-22 00:30:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 64 states have internal predecessors, (66), 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) [2022-11-22 00:30:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2022-11-22 00:30:48,476 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 28 [2022-11-22 00:30:48,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:48,476 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2022-11-22 00:30:48,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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) [2022-11-22 00:30:48,476 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2022-11-22 00:30:48,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-22 00:30:48,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:48,478 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1] [2022-11-22 00:30:48,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:48,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:48,683 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:48,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1350767755, now seen corresponding path program 2 times [2022-11-22 00:30:48,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:48,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140289199] [2022-11-22 00:30:48,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:48,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:48,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:48,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140289199] [2022-11-22 00:30:48,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140289199] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:48,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576941156] [2022-11-22 00:30:48,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:30:48,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:48,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:48,944 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:48,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:30:49,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-22 00:30:49,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:49,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 00:30:49,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 33 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:49,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 9 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:50,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576941156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:50,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [980103909] [2022-11-22 00:30:50,093 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:30:50,093 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:50,094 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:50,094 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:50,094 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:50,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:50,939 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1338#(and (< 2147483646 |ULTIMATE.start_main_~d2~0#1|) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|)) (= |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~d1old~0#1|) (<= |ULTIMATE.start_main_~d1~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647))' at error location [2022-11-22 00:30:50,939 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:50,939 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:50,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 16] total 44 [2022-11-22 00:30:50,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020500106] [2022-11-22 00:30:50,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:50,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-22 00:30:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:50,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-22 00:30:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=2435, Unknown=0, NotChecked=0, Total=2756 [2022-11-22 00:30:50,942 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand has 46 states, 45 states have (on average 3.6) internal successors, (162), 45 states have internal predecessors, (162), 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) [2022-11-22 00:30:53,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:53,642 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2022-11-22 00:30:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-22 00:30:53,643 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.6) internal successors, (162), 45 states have internal predecessors, (162), 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 54 [2022-11-22 00:30:53,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:53,643 INFO L225 Difference]: With dead ends: 74 [2022-11-22 00:30:53,644 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 00:30:53,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 113 SyntacticMatches, 8 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2536 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1514, Invalid=7416, Unknown=0, NotChecked=0, Total=8930 [2022-11-22 00:30:53,648 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 435 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:53,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 0 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 00:30:53,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 00:30:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2022-11-22 00:30:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.0158730158730158) internal successors, (64), 63 states have internal predecessors, (64), 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) [2022-11-22 00:30:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2022-11-22 00:30:53,659 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 54 [2022-11-22 00:30:53,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:53,659 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2022-11-22 00:30:53,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.6) internal successors, (162), 45 states have internal predecessors, (162), 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) [2022-11-22 00:30:53,659 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2022-11-22 00:30:53,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-22 00:30:53,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:53,660 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2022-11-22 00:30:53,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:53,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 00:30:53,867 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:53,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:53,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1534421924, now seen corresponding path program 2 times [2022-11-22 00:30:53,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:53,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012422608] [2022-11-22 00:30:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:53,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:54,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:54,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012422608] [2022-11-22 00:30:54,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012422608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:54,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374983002] [2022-11-22 00:30:54,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:30:54,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:54,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:54,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:54,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:30:54,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-11-22 00:30:54,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:54,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 00:30:54,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:54,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:56,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374983002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:56,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [729530793] [2022-11-22 00:30:56,425 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:30:56,425 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:56,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:56,426 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:56,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:56,515 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:57,518 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2022#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-11-22 00:30:57,518 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:57,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:57,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 24, 24] total 62 [2022-11-22 00:30:57,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898115528] [2022-11-22 00:30:57,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:57,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-22 00:30:57,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:57,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-22 00:30:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=4502, Unknown=0, NotChecked=0, Total=4970 [2022-11-22 00:30:57,523 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 64 states, 63 states have (on average 3.0) internal successors, (189), 63 states have internal predecessors, (189), 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) [2022-11-22 00:31:03,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:03,080 INFO L93 Difference]: Finished difference Result 128 states and 136 transitions. [2022-11-22 00:31:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-22 00:31:03,081 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0) internal successors, (189), 63 states have internal predecessors, (189), 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 63 [2022-11-22 00:31:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:03,087 INFO L225 Difference]: With dead ends: 128 [2022-11-22 00:31:03,087 INFO L226 Difference]: Without dead ends: 127 [2022-11-22 00:31:03,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 123 SyntacticMatches, 9 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3876 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=2879, Invalid=13377, Unknown=0, NotChecked=0, Total=16256 [2022-11-22 00:31:03,092 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 725 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:03,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 14 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 00:31:03,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-22 00:31:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-11-22 00:31:03,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.007936507936508) internal successors, (127), 126 states have internal predecessors, (127), 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) [2022-11-22 00:31:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2022-11-22 00:31:03,124 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 63 [2022-11-22 00:31:03,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:03,124 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2022-11-22 00:31:03,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0) internal successors, (189), 63 states have internal predecessors, (189), 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) [2022-11-22 00:31:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2022-11-22 00:31:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 00:31:03,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:03,127 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 1, 1] [2022-11-22 00:31:03,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:31:03,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 00:31:03,331 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1478063415, now seen corresponding path program 3 times [2022-11-22 00:31:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:03,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898514643] [2022-11-22 00:31:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:03,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 1054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:04,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:04,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898514643] [2022-11-22 00:31:04,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898514643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:04,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456833576] [2022-11-22 00:31:04,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:31:04,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:04,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:04,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:04,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 00:31:04,241 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:31:04,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:31:04,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-22 00:31:04,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 1054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:04,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 1054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:05,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456833576] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:05,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773127964] [2022-11-22 00:31:05,284 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:31:05,284 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:05,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:05,285 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:05,285 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:05,393 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:05,929 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3240#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-11-22 00:31:05,929 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:31:05,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:05,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2022-11-22 00:31:05,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186469108] [2022-11-22 00:31:05,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:31:05,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-22 00:31:05,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:05,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-22 00:31:05,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=3442, Unknown=0, NotChecked=0, Total=4032 [2022-11-22 00:31:05,932 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand has 56 states, 55 states have (on average 4.581818181818182) internal successors, (252), 55 states have internal predecessors, (252), 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) [2022-11-22 00:31:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:08,227 INFO L93 Difference]: Finished difference Result 261 states and 279 transitions. [2022-11-22 00:31:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-22 00:31:08,228 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.581818181818182) internal successors, (252), 55 states have internal predecessors, (252), 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 126 [2022-11-22 00:31:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:08,229 INFO L225 Difference]: With dead ends: 261 [2022-11-22 00:31:08,229 INFO L226 Difference]: Without dead ends: 260 [2022-11-22 00:31:08,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3523 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3597, Invalid=10209, Unknown=0, NotChecked=0, Total=13806 [2022-11-22 00:31:08,233 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 670 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:08,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 70 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:31:08,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-11-22 00:31:08,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2022-11-22 00:31:08,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.0038610038610039) internal successors, (260), 259 states have internal predecessors, (260), 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) [2022-11-22 00:31:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 260 transitions. [2022-11-22 00:31:08,273 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 260 transitions. Word has length 126 [2022-11-22 00:31:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:08,273 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 260 transitions. [2022-11-22 00:31:08,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.581818181818182) internal successors, (252), 55 states have internal predecessors, (252), 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) [2022-11-22 00:31:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 260 transitions. [2022-11-22 00:31:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-22 00:31:08,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:08,278 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 36, 36, 1, 1] [2022-11-22 00:31:08,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 00:31:08,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 00:31:08,485 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:08,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:08,485 INFO L85 PathProgramCache]: Analyzing trace with hash -723057564, now seen corresponding path program 4 times [2022-11-22 00:31:08,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:08,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064805022] [2022-11-22 00:31:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:08,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4626 backedges. 0 proven. 4626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:11,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:11,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064805022] [2022-11-22 00:31:11,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064805022] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:11,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705311210] [2022-11-22 00:31:11,501 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 00:31:11,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:11,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:11,502 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:11,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:31:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:11,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-22 00:31:11,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4626 backedges. 0 proven. 4626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:12,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4626 backedges. 0 proven. 4626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:14,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705311210] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:14,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1577201023] [2022-11-22 00:31:14,776 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:31:14,777 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:14,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:14,777 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:14,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:14,880 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:15,557 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5613#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-11-22 00:31:15,558 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:31:15,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:15,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 112 [2022-11-22 00:31:15,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257489697] [2022-11-22 00:31:15,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:31:15,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-11-22 00:31:15,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:15,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-11-22 00:31:15,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2283, Invalid=12479, Unknown=0, NotChecked=0, Total=14762 [2022-11-22 00:31:15,565 INFO L87 Difference]: Start difference. First operand 260 states and 260 transitions. Second operand has 114 states, 113 states have (on average 4.584070796460177) internal successors, (518), 113 states have internal predecessors, (518), 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) [2022-11-22 00:31:22,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:22,963 INFO L93 Difference]: Finished difference Result 520 states and 556 transitions. [2022-11-22 00:31:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-11-22 00:31:22,967 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 113 states have (on average 4.584070796460177) internal successors, (518), 113 states have internal predecessors, (518), 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 259 [2022-11-22 00:31:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:22,970 INFO L225 Difference]: With dead ends: 520 [2022-11-22 00:31:22,970 INFO L226 Difference]: Without dead ends: 519 [2022-11-22 00:31:22,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 941 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13870 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=14679, Invalid=38913, Unknown=0, NotChecked=0, Total=53592 [2022-11-22 00:31:22,977 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1627 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:22,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 126 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 00:31:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-11-22 00:31:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2022-11-22 00:31:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.001930501930502) internal successors, (519), 518 states have internal predecessors, (519), 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) [2022-11-22 00:31:23,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 519 transitions. [2022-11-22 00:31:23,044 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 519 transitions. Word has length 259 [2022-11-22 00:31:23,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:23,045 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 519 transitions. [2022-11-22 00:31:23,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 113 states have (on average 4.584070796460177) internal successors, (518), 113 states have internal predecessors, (518), 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) [2022-11-22 00:31:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 519 transitions. [2022-11-22 00:31:23,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-11-22 00:31:23,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:23,058 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 74, 74, 73, 73, 1, 1] [2022-11-22 00:31:23,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-22 00:31:23,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:23,264 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:23,264 INFO L85 PathProgramCache]: Analyzing trace with hash -846302281, now seen corresponding path program 5 times [2022-11-22 00:31:23,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:23,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024713964] [2022-11-22 00:31:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:23,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 18834 backedges. 0 proven. 18834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:32,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:32,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024713964] [2022-11-22 00:31:32,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024713964] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:32,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811383779] [2022-11-22 00:31:32,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:31:32,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:32,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:32,641 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:32,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 00:31:32,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-22 00:31:32,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:31:32,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-22 00:31:32,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:34,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18834 backedges. 4361 proven. 297 refuted. 0 times theorem prover too weak. 14176 trivial. 0 not checked. [2022-11-22 00:31:34,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 18834 backedges. 4361 proven. 297 refuted. 0 times theorem prover too weak. 14176 trivial. 0 not checked. [2022-11-22 00:31:37,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811383779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:37,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2051926720] [2022-11-22 00:31:37,870 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:31:37,870 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:37,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:37,871 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:37,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:37,989 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:39,440 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10295#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-11-22 00:31:39,440 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:31:39,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:39,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 27, 27] total 164 [2022-11-22 00:31:39,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818682265] [2022-11-22 00:31:39,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:31:39,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 165 states [2022-11-22 00:31:39,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:39,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2022-11-22 00:31:39,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3189, Invalid=26567, Unknown=0, NotChecked=0, Total=29756 [2022-11-22 00:31:39,447 INFO L87 Difference]: Start difference. First operand 519 states and 519 transitions. Second operand has 165 states, 164 states have (on average 4.048780487804878) internal successors, (664), 165 states have internal predecessors, (664), 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) [2022-11-22 00:33:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:37,131 INFO L93 Difference]: Finished difference Result 532 states and 533 transitions. [2022-11-22 00:33:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 380 states. [2022-11-22 00:33:37,132 INFO L78 Accepts]: Start accepts. Automaton has has 165 states, 164 states have (on average 4.048780487804878) internal successors, (664), 165 states have internal predecessors, (664), 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 518 [2022-11-22 00:33:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:37,133 INFO L225 Difference]: With dead ends: 532 [2022-11-22 00:33:37,134 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:33:37,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2041 GetRequests, 1492 SyntacticMatches, 0 SemanticMatches, 549 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91733 ImplicationChecksByTransitivity, 123.2s TimeCoverageRelationStatistics Valid=60675, Invalid=242375, Unknown=0, NotChecked=0, Total=303050 [2022-11-22 00:33:37,149 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8443 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 1986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8443 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1986 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:37,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8443 Valid, 0 Invalid, 3575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1986 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 00:33:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:33:37,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:33:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:33:37,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 518 [2022-11-22 00:33:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:37,151 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:33:37,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 165 states, 164 states have (on average 4.048780487804878) internal successors, (664), 165 states have internal predecessors, (664), 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) [2022-11-22 00:33:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:33:37,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:33:37,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 00:33:37,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 00:33:37,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 00:33:37,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 00:33:37,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 00:33:37,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 00:33:37,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 00:33:37,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 00:33:37,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:33:43,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 00:33:43,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:33:43,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 00:33:43,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 00:33:43,539 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:33:43,540 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-22 00:33:43,540 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-22 00:33:43,540 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-22 00:33:43,541 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse6 (+ |ULTIMATE.start_main_~d2~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~d1~0#1| 73)) (.cse3 (<= |ULTIMATE.start_main_~d2~0#1| 74))) (let ((.cse2 (<= |ULTIMATE.start_main_~d1~0#1| 75)) (.cse4 (= (+ |ULTIMATE.start_main_~d1old~0#1| 1) |ULTIMATE.start_main_~d2~0#1|)) (.cse1 (let ((.cse8 (<= 74 |ULTIMATE.start_main_~d2~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) .cse3 .cse8) (and (<= |ULTIMATE.start_main_~d2~0#1| 2147483647) (<= 75 |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d1~0#1| 2147483647) .cse8)))) (.cse7 (<= |ULTIMATE.start_main_~d2~0#1| 76)) (.cse5 (<= 1 .cse6))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse1 .cse5 (<= .cse6 2147483648)) (and (<= |ULTIMATE.start_main_~d1~0#1| 2147483645) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483645) (or (and (<= 78 |ULTIMATE.start_main_~d2~0#1|) (<= (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483570) .cse4 .cse1 (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647)) (and .cse4 .cse1 (<= (+ |ULTIMATE.start_main_~x~0#1| (* 2 |ULTIMATE.start_main_~d1old~0#1|)) 2147483570) (<= 79 |ULTIMATE.start_main_~d1~0#1|))) .cse5 (<= (+ (* |ULTIMATE.start_main_~d2~0#1| 4) (* 3 |ULTIMATE.start_main_~x~0#1|)) 8589934576)) (and (<= |ULTIMATE.start_main_~d1old~0#1| 75) .cse2 (<= 75 |ULTIMATE.start_main_~d1old~0#1|) .cse1 (<= 76 |ULTIMATE.start_main_~d2~0#1|) .cse7 (<= |ULTIMATE.start_main_~x~0#1| 2147483499) .cse5) (and (<= .cse6 2147483500) (<= |ULTIMATE.start_main_~d1~0#1| 77) (<= 77 |ULTIMATE.start_main_~d1~0#1|) .cse4 .cse1 .cse7 .cse5)))) [2022-11-22 00:33:43,544 INFO L444 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:43,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:33:43,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:33:43 BoogieIcfgContainer [2022-11-22 00:33:43,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:33:43,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:33:43,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:33:43,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:33:43,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:43" (3/4) ... [2022-11-22 00:33:43,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:33:43,581 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-22 00:33:43,582 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 00:33:43,582 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:33:43,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((d1 <= 73 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) || (((((d1 <= 75 && d2 <= 74) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 1 <= d2 + x) && d2 + x <= 2147483648)) || ((((d1 <= 2147483645 && d1\old <= 2147483645) && (((((78 <= d2 && d1 + x <= 2147483570) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + d1\old <= 2147483647) || (((d1\old + 1 == d2 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + 2 * d1\old <= 2147483570) && 79 <= d1))) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576)) || (((((((d1\old <= 75 && d1 <= 75) && 75 <= d1\old) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 76 <= d2) && d2 <= 76) && x <= 2147483499) && 1 <= d2 + x)) || ((((((d2 + x <= 2147483500 && d1 <= 77) && 77 <= d1) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && d2 <= 76) && 1 <= d2 + x) [2022-11-22 00:33:43,613 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:33:43,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:33:43,614 INFO L158 Benchmark]: Toolchain (without parser) took 180735.54ms. Allocated memory was 195.0MB in the beginning and 834.7MB in the end (delta: 639.6MB). Free memory was 163.7MB in the beginning and 605.1MB in the end (delta: -441.4MB). Peak memory consumption was 200.0MB. Max. memory is 16.1GB. [2022-11-22 00:33:43,614 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 146.8MB. Free memory was 90.3MB in the beginning and 90.2MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:33:43,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.01ms. Allocated memory is still 195.0MB. Free memory was 163.7MB in the beginning and 154.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 00:33:43,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.57ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 153.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:33:43,615 INFO L158 Benchmark]: Boogie Preprocessor took 29.90ms. Allocated memory is still 195.0MB. Free memory was 153.2MB in the beginning and 152.5MB in the end (delta: 694.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:33:43,615 INFO L158 Benchmark]: RCFGBuilder took 259.29ms. Allocated memory is still 195.0MB. Free memory was 152.5MB in the beginning and 142.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 00:33:43,616 INFO L158 Benchmark]: TraceAbstraction took 180169.70ms. Allocated memory was 195.0MB in the beginning and 834.7MB in the end (delta: 639.6MB). Free memory was 141.4MB in the beginning and 607.2MB in the end (delta: -465.8MB). Peak memory consumption was 523.0MB. Max. memory is 16.1GB. [2022-11-22 00:33:43,616 INFO L158 Benchmark]: Witness Printer took 44.39ms. Allocated memory is still 834.7MB. Free memory was 607.2MB in the beginning and 605.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:33:43,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 146.8MB. Free memory was 90.3MB in the beginning and 90.2MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.01ms. Allocated memory is still 195.0MB. Free memory was 163.7MB in the beginning and 154.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.57ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 153.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.90ms. Allocated memory is still 195.0MB. Free memory was 153.2MB in the beginning and 152.5MB in the end (delta: 694.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.29ms. Allocated memory is still 195.0MB. Free memory was 152.5MB in the beginning and 142.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 180169.70ms. Allocated memory was 195.0MB in the beginning and 834.7MB in the end (delta: 639.6MB). Free memory was 141.4MB in the beginning and 607.2MB in the end (delta: -465.8MB). Peak memory consumption was 523.0MB. Max. memory is 16.1GB. * Witness Printer took 44.39ms. Allocated memory is still 834.7MB. Free memory was 607.2MB in the beginning and 605.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 180.1s, OverallIterations: 14, TraceHistogramMax: 74, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 136.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12068 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12068 mSDsluCounter, 386 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 2347 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5139 IncrementalHoareTripleChecker+Invalid, 7486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2347 mSolverCounterUnsat, 79 mSDtfsCounter, 5139 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4097 GetRequests, 2885 SyntacticMatches, 18 SemanticMatches, 1194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115930 ImplicationChecksByTransitivity, 149.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=519occurred in iteration=13, InterpolantAutomatonStates: 710, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 36 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 76 NumberOfFragments, 343 HoareAnnotationTreeSize, 1 FomulaSimplifications, 2132 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 1 FomulaSimplificationsInter, 23201 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 2173 NumberOfCodeBlocks, 1739 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 3213 ConstructedInterpolants, 0 QuantifiedInterpolants, 9791 SizeOfPredicates, 157 NumberOfNonLiveVariables, 1402 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 37116/74934 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 45, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 45, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 66, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 91, DAG_COMPRESSION_RETAINED_NODES: 32, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((d1 <= 73 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) || (((((d1 <= 75 && d2 <= 74) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 1 <= d2 + x) && d2 + x <= 2147483648)) || ((((d1 <= 2147483645 && d1\old <= 2147483645) && (((((78 <= d2 && d1 + x <= 2147483570) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + d1\old <= 2147483647) || (((d1\old + 1 == d2 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + 2 * d1\old <= 2147483570) && 79 <= d1))) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576)) || (((((((d1\old <= 75 && d1 <= 75) && 75 <= d1\old) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 76 <= d2) && d2 <= 76) && x <= 2147483499) && 1 <= d2 + x)) || ((((((d2 + x <= 2147483500 && d1 <= 77) && 77 <= d1) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && d2 <= 76) && 1 <= d2 + x) RESULT: Ultimate proved your program to be correct! [2022-11-22 00:33:43,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f969c8-561f-457c-8b57-e40deefdef62/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE