./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs --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 4f493a0ec5685991b86ced08697f863f174636a1 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:04:03,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:04:03,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:04:03,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:04:03,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:04:03,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:04:03,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:04:03,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:04:03,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:04:03,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:04:03,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:04:03,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:04:03,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:04:03,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:04:03,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:04:03,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:04:03,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:04:03,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:04:03,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:04:03,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:04:03,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:04:03,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:04:03,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:04:03,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:04:03,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:04:03,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:04:03,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:04:03,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:04:03,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:04:03,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:04:03,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:04:03,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:04:03,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:04:03,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:04:03,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:04:03,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:04:03,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:04:03,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:04:03,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:04:03,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:04:03,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:04:03,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-16 03:04:03,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:04:03,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:04:03,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:04:03,224 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:04:03,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:04:03,224 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:04:03,225 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:04:03,225 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:04:03,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:04:03,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:04:03,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:04:03,226 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:04:03,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:04:03,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:04:03,227 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:04:03,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:04:03,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:04:03,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:04:03,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:04:03,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:04:03,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:04:03,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:04:03,230 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 03:04:03,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:04:03,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:04:03,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:04:03,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:04:03,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:04:03,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:04:03,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:04:03,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:04:03,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:04:03,233 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:04:03,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:04:03,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:04:03,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:04:03,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:04:03,234 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f493a0ec5685991b86ced08697f863f174636a1 [2021-10-16 03:04:03,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:04:03,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:04:03,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:04:03,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:04:03,595 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:04:03,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c [2021-10-16 03:04:03,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/data/389f5acc9/91abfc64710e4970814f39cfffc2acb3/FLAG57d591dbf [2021-10-16 03:04:04,312 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:04:04,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c [2021-10-16 03:04:04,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/data/389f5acc9/91abfc64710e4970814f39cfffc2acb3/FLAG57d591dbf [2021-10-16 03:04:04,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/data/389f5acc9/91abfc64710e4970814f39cfffc2acb3 [2021-10-16 03:04:04,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:04:04,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:04:04,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:04:04,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:04:04,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:04:04,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:04:04" (1/1) ... [2021-10-16 03:04:04,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d931ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:04, skipping insertion in model container [2021-10-16 03:04:04,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:04:04" (1/1) ... [2021-10-16 03:04:04,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:04:04,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:04:04,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:04:04,981 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:04:05,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:04:05,016 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:04:05,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05 WrapperNode [2021-10-16 03:04:05,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:04:05,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:04:05,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:04:05,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:04:05,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:04:05,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:04:05,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:04:05,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:04:05,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:04:05,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:04:05,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:04:05,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:04:05,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (1/1) ... [2021-10-16 03:04:05,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:04:05,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:04:05,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:04:05,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:04:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:04:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:04:05,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:04:05,663 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-16 03:04:05,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:04:05 BoogieIcfgContainer [2021-10-16 03:04:05,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:04:05,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:04:05,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:04:05,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:04:05,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:04:04" (1/3) ... [2021-10-16 03:04:05,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513d4a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:04:05, skipping insertion in model container [2021-10-16 03:04:05,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:04:05" (2/3) ... [2021-10-16 03:04:05,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513d4a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:04:05, skipping insertion in model container [2021-10-16 03:04:05,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:04:05" (3/3) ... [2021-10-16 03:04:05,678 INFO L111 eAbstractionObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-1.c [2021-10-16 03:04:05,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:04:05,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-16 03:04:05,748 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:04:05,757 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:04:05,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-10-16 03:04:05,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 46 states have (on average 1.9782608695652173) internal successors, (91), 82 states have internal predecessors, (91), 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) [2021-10-16 03:04:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 03:04:05,818 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:05,819 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 03:04:05,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:05,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash 172532, now seen corresponding path program 1 times [2021-10-16 03:04:05,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:05,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57482527] [2021-10-16 03:04:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:05,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:06,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:06,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57482527] [2021-10-16 03:04:06,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57482527] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:06,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:06,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:04:06,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275887069] [2021-10-16 03:04:06,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:04:06,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:04:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:04:06,121 INFO L87 Difference]: Start difference. First operand has 83 states, 46 states have (on average 1.9782608695652173) internal successors, (91), 82 states have internal predecessors, (91), 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), 3 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) [2021-10-16 03:04:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:06,422 INFO L93 Difference]: Finished difference Result 162 states and 189 transitions. [2021-10-16 03:04:06,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:04:06,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2021-10-16 03:04:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:06,436 INFO L225 Difference]: With dead ends: 162 [2021-10-16 03:04:06,437 INFO L226 Difference]: Without dead ends: 90 [2021-10-16 03:04:06,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:04:06,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-16 03:04:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2021-10-16 03:04:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 53 states have (on average 1.679245283018868) internal successors, (89), 80 states have internal predecessors, (89), 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) [2021-10-16 03:04:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2021-10-16 03:04:06,484 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 3 [2021-10-16 03:04:06,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:06,485 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2021-10-16 03:04:06,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2021-10-16 03:04:06,486 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2021-10-16 03:04:06,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 03:04:06,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:06,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 03:04:06,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:04:06,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:06,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash 172340, now seen corresponding path program 1 times [2021-10-16 03:04:06,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:06,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190516006] [2021-10-16 03:04:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:06,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:06,526 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:06,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190516006] [2021-10-16 03:04:06,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190516006] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:06,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:06,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 03:04:06,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878838078] [2021-10-16 03:04:06,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:04:06,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:04:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:04:06,532 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. 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) [2021-10-16 03:04:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:06,665 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2021-10-16 03:04:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:04:06,666 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 [2021-10-16 03:04:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:06,668 INFO L225 Difference]: With dead ends: 90 [2021-10-16 03:04:06,668 INFO L226 Difference]: Without dead ends: 89 [2021-10-16 03:04:06,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:04:06,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-16 03:04:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2021-10-16 03:04:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.6603773584905661) internal successors, (88), 79 states have internal predecessors, (88), 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) [2021-10-16 03:04:06,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2021-10-16 03:04:06,680 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 3 [2021-10-16 03:04:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:06,681 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2021-10-16 03:04:06,681 INFO L471 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) [2021-10-16 03:04:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2021-10-16 03:04:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 03:04:06,682 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:06,683 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 03:04:06,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:04:06,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:06,685 INFO L82 PathProgramCache]: Analyzing trace with hash 5348542, now seen corresponding path program 1 times [2021-10-16 03:04:06,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:06,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779509120] [2021-10-16 03:04:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:06,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:06,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:06,717 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:06,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779509120] [2021-10-16 03:04:06,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779509120] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:06,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:06,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 03:04:06,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409868483] [2021-10-16 03:04:06,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:04:06,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:04:06,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:04:06,722 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:06,947 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2021-10-16 03:04:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:04:06,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 03:04:06,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:06,956 INFO L225 Difference]: With dead ends: 110 [2021-10-16 03:04:06,957 INFO L226 Difference]: Without dead ends: 94 [2021-10-16 03:04:06,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:04:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-10-16 03:04:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 85. [2021-10-16 03:04:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 84 states have internal predecessors, (93), 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) [2021-10-16 03:04:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2021-10-16 03:04:06,985 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 4 [2021-10-16 03:04:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:06,986 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2021-10-16 03:04:06,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2021-10-16 03:04:06,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:04:06,987 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:06,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:04:06,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 03:04:06,988 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:06,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:06,990 INFO L82 PathProgramCache]: Analyzing trace with hash 839257658, now seen corresponding path program 1 times [2021-10-16 03:04:06,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:06,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87888713] [2021-10-16 03:04:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:06,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:07,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:07,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87888713] [2021-10-16 03:04:07,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87888713] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:07,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:07,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:04:07,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283512622] [2021-10-16 03:04:07,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:04:07,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:07,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:04:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:04:07,095 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:07,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:07,244 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2021-10-16 03:04:07,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:04:07,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 03:04:07,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:07,248 INFO L225 Difference]: With dead ends: 94 [2021-10-16 03:04:07,248 INFO L226 Difference]: Without dead ends: 93 [2021-10-16 03:04:07,249 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:04:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-16 03:04:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2021-10-16 03:04:07,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.373134328358209) internal successors, (92), 83 states have internal predecessors, (92), 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) [2021-10-16 03:04:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2021-10-16 03:04:07,275 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 6 [2021-10-16 03:04:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:07,276 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2021-10-16 03:04:07,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2021-10-16 03:04:07,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 03:04:07,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:07,277 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:07,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 03:04:07,280 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:07,283 INFO L82 PathProgramCache]: Analyzing trace with hash 424684416, now seen corresponding path program 1 times [2021-10-16 03:04:07,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:07,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111729808] [2021-10-16 03:04:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:07,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:07,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:07,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111729808] [2021-10-16 03:04:07,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111729808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:07,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:07,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:04:07,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866179355] [2021-10-16 03:04:07,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:04:07,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:07,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:04:07,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:04:07,369 INFO L87 Difference]: Start difference. First operand 84 states and 92 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) [2021-10-16 03:04:07,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:07,557 INFO L93 Difference]: Finished difference Result 126 states and 134 transitions. [2021-10-16 03:04:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:04:07,558 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 [2021-10-16 03:04:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:07,559 INFO L225 Difference]: With dead ends: 126 [2021-10-16 03:04:07,559 INFO L226 Difference]: Without dead ends: 119 [2021-10-16 03:04:07,562 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:04:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-16 03:04:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 99. [2021-10-16 03:04:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 98 states have internal predecessors, (107), 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) [2021-10-16 03:04:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2021-10-16 03:04:07,586 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 7 [2021-10-16 03:04:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:07,588 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2021-10-16 03:04:07,588 INFO L471 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) [2021-10-16 03:04:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2021-10-16 03:04:07,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:04:07,590 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:07,590 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:07,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 03:04:07,591 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:07,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1320317378, now seen corresponding path program 1 times [2021-10-16 03:04:07,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:07,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272519035] [2021-10-16 03:04:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:07,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:07,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:07,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272519035] [2021-10-16 03:04:07,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272519035] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:07,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:07,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:04:07,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104231691] [2021-10-16 03:04:07,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:04:07,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:07,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:04:07,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:04:07,679 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-16 03:04:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:07,811 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2021-10-16 03:04:07,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:04:07,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 9 [2021-10-16 03:04:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:07,820 INFO L225 Difference]: With dead ends: 108 [2021-10-16 03:04:07,821 INFO L226 Difference]: Without dead ends: 107 [2021-10-16 03:04:07,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:04:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-16 03:04:07,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98. [2021-10-16 03:04:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 97 states have internal predecessors, (106), 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) [2021-10-16 03:04:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2021-10-16 03:04:07,831 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 9 [2021-10-16 03:04:07,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:07,832 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2021-10-16 03:04:07,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-16 03:04:07,833 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2021-10-16 03:04:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:04:07,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:07,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:07,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 03:04:07,837 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:07,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:07,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1200143412, now seen corresponding path program 1 times [2021-10-16 03:04:07,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:07,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891568191] [2021-10-16 03:04:07,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:07,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:07,933 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:07,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891568191] [2021-10-16 03:04:07,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891568191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:07,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:07,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:04:07,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797143536] [2021-10-16 03:04:07,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:04:07,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:07,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:04:07,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:04:07,937 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-16 03:04:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:08,175 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2021-10-16 03:04:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:04:08,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 [2021-10-16 03:04:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:08,178 INFO L225 Difference]: With dead ends: 147 [2021-10-16 03:04:08,178 INFO L226 Difference]: Without dead ends: 141 [2021-10-16 03:04:08,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:04:08,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-16 03:04:08,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 107. [2021-10-16 03:04:08,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 106 states have internal predecessors, (115), 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) [2021-10-16 03:04:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2021-10-16 03:04:08,184 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 10 [2021-10-16 03:04:08,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:08,184 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2021-10-16 03:04:08,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-16 03:04:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2021-10-16 03:04:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 03:04:08,185 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:08,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:08,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 03:04:08,186 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:08,187 INFO L82 PathProgramCache]: Analyzing trace with hash 264583048, now seen corresponding path program 1 times [2021-10-16 03:04:08,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:08,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095340901] [2021-10-16 03:04:08,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:08,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:08,239 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:08,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095340901] [2021-10-16 03:04:08,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095340901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:08,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:08,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:04:08,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672286233] [2021-10-16 03:04:08,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:04:08,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:08,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:04:08,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:04:08,243 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-10-16 03:04:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:08,366 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2021-10-16 03:04:08,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:04:08,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 [2021-10-16 03:04:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:08,368 INFO L225 Difference]: With dead ends: 116 [2021-10-16 03:04:08,368 INFO L226 Difference]: Without dead ends: 115 [2021-10-16 03:04:08,369 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:04:08,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-16 03:04:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 106. [2021-10-16 03:04:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 93 states have (on average 1.2258064516129032) internal successors, (114), 105 states have internal predecessors, (114), 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) [2021-10-16 03:04:08,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2021-10-16 03:04:08,373 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 12 [2021-10-16 03:04:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:08,374 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2021-10-16 03:04:08,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-10-16 03:04:08,374 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2021-10-16 03:04:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 03:04:08,375 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:08,375 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:08,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 03:04:08,376 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:08,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:08,376 INFO L82 PathProgramCache]: Analyzing trace with hash 2130439758, now seen corresponding path program 1 times [2021-10-16 03:04:08,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:08,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740978906] [2021-10-16 03:04:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:08,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:08,443 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:08,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740978906] [2021-10-16 03:04:08,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740978906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:08,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:08,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:04:08,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462158727] [2021-10-16 03:04:08,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:04:08,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:08,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:04:08,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:04:08,446 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-16 03:04:08,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:08,727 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2021-10-16 03:04:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:04:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-10-16 03:04:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:08,729 INFO L225 Difference]: With dead ends: 165 [2021-10-16 03:04:08,730 INFO L226 Difference]: Without dead ends: 160 [2021-10-16 03:04:08,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:04:08,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-16 03:04:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 109. [2021-10-16 03:04:08,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2061855670103092) internal successors, (117), 108 states have internal predecessors, (117), 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) [2021-10-16 03:04:08,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2021-10-16 03:04:08,736 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 13 [2021-10-16 03:04:08,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:08,736 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2021-10-16 03:04:08,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-16 03:04:08,737 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2021-10-16 03:04:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:04:08,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:08,738 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:08,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 03:04:08,739 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:08,740 INFO L82 PathProgramCache]: Analyzing trace with hash 928680528, now seen corresponding path program 1 times [2021-10-16 03:04:08,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:08,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360942229] [2021-10-16 03:04:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:08,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:08,799 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:08,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360942229] [2021-10-16 03:04:08,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360942229] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:08,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:08,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:04:08,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541661641] [2021-10-16 03:04:08,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 03:04:08,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:08,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 03:04:08,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:04:08,803 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-16 03:04:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:08,938 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-10-16 03:04:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 03:04:08,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 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) Word has length 15 [2021-10-16 03:04:08,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:08,940 INFO L225 Difference]: With dead ends: 118 [2021-10-16 03:04:08,941 INFO L226 Difference]: Without dead ends: 117 [2021-10-16 03:04:08,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:04:08,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-16 03:04:08,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2021-10-16 03:04:08,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 107 states have internal predecessors, (116), 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) [2021-10-16 03:04:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2021-10-16 03:04:08,946 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 15 [2021-10-16 03:04:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:08,947 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2021-10-16 03:04:08,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-16 03:04:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2021-10-16 03:04:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 03:04:08,949 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:08,949 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:08,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 03:04:08,949 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:08,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1199198938, now seen corresponding path program 1 times [2021-10-16 03:04:08,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:08,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936715994] [2021-10-16 03:04:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:08,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:09,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:09,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936715994] [2021-10-16 03:04:09,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936715994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:09,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:09,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:04:09,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209025736] [2021-10-16 03:04:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 03:04:09,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 03:04:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:04:09,015 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-16 03:04:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:09,315 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2021-10-16 03:04:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 03:04:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) Word has length 16 [2021-10-16 03:04:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:09,318 INFO L225 Difference]: With dead ends: 180 [2021-10-16 03:04:09,318 INFO L226 Difference]: Without dead ends: 176 [2021-10-16 03:04:09,319 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:04:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-16 03:04:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 105. [2021-10-16 03:04:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.1894736842105262) internal successors, (113), 104 states have internal predecessors, (113), 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) [2021-10-16 03:04:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2021-10-16 03:04:09,324 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 16 [2021-10-16 03:04:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:09,325 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2021-10-16 03:04:09,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-16 03:04:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2021-10-16 03:04:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 03:04:09,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:09,327 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:09,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 03:04:09,327 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:09,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:09,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1857611562, now seen corresponding path program 1 times [2021-10-16 03:04:09,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:09,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76122582] [2021-10-16 03:04:09,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:09,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:09,397 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:09,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76122582] [2021-10-16 03:04:09,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76122582] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:09,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:09,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 03:04:09,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603849285] [2021-10-16 03:04:09,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:04:09,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:04:09,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:04:09,400 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-16 03:04:09,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:09,535 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2021-10-16 03:04:09,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 03:04:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) Word has length 18 [2021-10-16 03:04:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:09,537 INFO L225 Difference]: With dead ends: 114 [2021-10-16 03:04:09,537 INFO L226 Difference]: Without dead ends: 113 [2021-10-16 03:04:09,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.8ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:04:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-16 03:04:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2021-10-16 03:04:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 95 states have (on average 1.1789473684210525) internal successors, (112), 103 states have internal predecessors, (112), 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) [2021-10-16 03:04:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2021-10-16 03:04:09,542 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 18 [2021-10-16 03:04:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:09,543 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2021-10-16 03:04:09,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-16 03:04:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2021-10-16 03:04:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 03:04:09,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:09,544 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:09,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 03:04:09,545 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash -202290916, now seen corresponding path program 1 times [2021-10-16 03:04:09,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:09,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300746630] [2021-10-16 03:04:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:09,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:09,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:09,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300746630] [2021-10-16 03:04:09,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300746630] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:09,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:09,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 03:04:09,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447519100] [2021-10-16 03:04:09,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:04:09,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:04:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:04:09,639 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-10-16 03:04:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:09,935 INFO L93 Difference]: Finished difference Result 192 states and 200 transitions. [2021-10-16 03:04:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 03:04:09,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) Word has length 19 [2021-10-16 03:04:09,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:09,937 INFO L225 Difference]: With dead ends: 192 [2021-10-16 03:04:09,937 INFO L226 Difference]: Without dead ends: 189 [2021-10-16 03:04:09,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:04:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-10-16 03:04:09,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 95. [2021-10-16 03:04:09,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 87 states have (on average 1.1839080459770115) internal successors, (103), 94 states have internal predecessors, (103), 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) [2021-10-16 03:04:09,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2021-10-16 03:04:09,942 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 19 [2021-10-16 03:04:09,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:09,942 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2021-10-16 03:04:09,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-10-16 03:04:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2021-10-16 03:04:09,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 03:04:09,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:09,943 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:09,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 03:04:09,944 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:09,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:09,944 INFO L82 PathProgramCache]: Analyzing trace with hash 547678942, now seen corresponding path program 1 times [2021-10-16 03:04:09,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:09,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037977205] [2021-10-16 03:04:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:09,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:10,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:10,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037977205] [2021-10-16 03:04:10,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037977205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:10,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:10,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 03:04:10,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98258658] [2021-10-16 03:04:10,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 03:04:10,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 03:04:10,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:04:10,032 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 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) [2021-10-16 03:04:10,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:10,158 INFO L93 Difference]: Finished difference Result 104 states and 112 transitions. [2021-10-16 03:04:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:04:10,158 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 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) Word has length 21 [2021-10-16 03:04:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:10,160 INFO L225 Difference]: With dead ends: 104 [2021-10-16 03:04:10,160 INFO L226 Difference]: Without dead ends: 103 [2021-10-16 03:04:10,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.5ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:04:10,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-16 03:04:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2021-10-16 03:04:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 93 states have internal predecessors, (102), 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) [2021-10-16 03:04:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2021-10-16 03:04:10,166 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 21 [2021-10-16 03:04:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:10,166 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2021-10-16 03:04:10,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 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) [2021-10-16 03:04:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2021-10-16 03:04:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:04:10,175 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:10,176 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:10,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 03:04:10,177 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:10,177 INFO L82 PathProgramCache]: Analyzing trace with hash -609433112, now seen corresponding path program 1 times [2021-10-16 03:04:10,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:10,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387480977] [2021-10-16 03:04:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:10,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:10,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:10,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387480977] [2021-10-16 03:04:10,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387480977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:10,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:10,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 03:04:10,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627196127] [2021-10-16 03:04:10,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 03:04:10,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:10,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 03:04:10,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:04:10,296 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-10-16 03:04:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:10,583 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2021-10-16 03:04:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:04:10,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2021-10-16 03:04:10,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:10,585 INFO L225 Difference]: With dead ends: 201 [2021-10-16 03:04:10,585 INFO L226 Difference]: Without dead ends: 199 [2021-10-16 03:04:10,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.9ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:04:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-16 03:04:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 79. [2021-10-16 03:04:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 78 states have internal predecessors, (87), 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) [2021-10-16 03:04:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2021-10-16 03:04:10,590 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 22 [2021-10-16 03:04:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:10,590 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2021-10-16 03:04:10,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-10-16 03:04:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2021-10-16 03:04:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 03:04:10,591 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:10,592 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:10,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 03:04:10,592 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:10,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:10,593 INFO L82 PathProgramCache]: Analyzing trace with hash -677268956, now seen corresponding path program 1 times [2021-10-16 03:04:10,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:10,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029827178] [2021-10-16 03:04:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:10,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:10,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:10,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029827178] [2021-10-16 03:04:10,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029827178] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:10,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:10,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 03:04:10,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028380546] [2021-10-16 03:04:10,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 03:04:10,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:10,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 03:04:10,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:04:10,672 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 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) [2021-10-16 03:04:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:10,807 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2021-10-16 03:04:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:04:10,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 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 24 [2021-10-16 03:04:10,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:10,809 INFO L225 Difference]: With dead ends: 88 [2021-10-16 03:04:10,809 INFO L226 Difference]: Without dead ends: 87 [2021-10-16 03:04:10,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.4ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:04:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-16 03:04:10,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 78. [2021-10-16 03:04:10,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 73 states have (on average 1.178082191780822) internal successors, (86), 77 states have internal predecessors, (86), 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) [2021-10-16 03:04:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2021-10-16 03:04:10,814 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 24 [2021-10-16 03:04:10,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:10,814 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2021-10-16 03:04:10,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 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) [2021-10-16 03:04:10,815 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2021-10-16 03:04:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:04:10,818 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:10,818 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:10,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 03:04:10,819 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:10,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:10,820 INFO L82 PathProgramCache]: Analyzing trace with hash -794936342, now seen corresponding path program 1 times [2021-10-16 03:04:10,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:10,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755689927] [2021-10-16 03:04:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:10,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:10,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:10,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755689927] [2021-10-16 03:04:10,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755689927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:10,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:10,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 03:04:10,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998662249] [2021-10-16 03:04:10,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 03:04:10,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:10,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 03:04:10,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:04:10,948 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-10-16 03:04:11,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:11,274 INFO L93 Difference]: Finished difference Result 207 states and 215 transitions. [2021-10-16 03:04:11,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:04:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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 25 [2021-10-16 03:04:11,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:11,276 INFO L225 Difference]: With dead ends: 207 [2021-10-16 03:04:11,277 INFO L226 Difference]: Without dead ends: 206 [2021-10-16 03:04:11,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:04:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-16 03:04:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 57. [2021-10-16 03:04:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 56 states have internal predecessors, (65), 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) [2021-10-16 03:04:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2021-10-16 03:04:11,281 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 25 [2021-10-16 03:04:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:11,281 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2021-10-16 03:04:11,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-10-16 03:04:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2021-10-16 03:04:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:04:11,282 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:11,282 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:11,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 03:04:11,283 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:11,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:11,283 INFO L82 PathProgramCache]: Analyzing trace with hash 570359052, now seen corresponding path program 1 times [2021-10-16 03:04:11,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:11,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694733368] [2021-10-16 03:04:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:11,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:11,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:11,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:11,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694733368] [2021-10-16 03:04:11,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694733368] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:11,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:11,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-16 03:04:11,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915022136] [2021-10-16 03:04:11,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 03:04:11,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:11,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 03:04:11,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-10-16 03:04:11,417 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 11 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:11,880 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2021-10-16 03:04:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 03:04:11,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-16 03:04:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:11,883 INFO L225 Difference]: With dead ends: 198 [2021-10-16 03:04:11,883 INFO L226 Difference]: Without dead ends: 197 [2021-10-16 03:04:11,883 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 102.8ms TimeCoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2021-10-16 03:04:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-16 03:04:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 79. [2021-10-16 03:04:11,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.2) internal successors, (90), 78 states have internal predecessors, (90), 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) [2021-10-16 03:04:11,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2021-10-16 03:04:11,888 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 27 [2021-10-16 03:04:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:11,888 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2021-10-16 03:04:11,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2021-10-16 03:04:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:04:11,889 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:11,889 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:11,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 03:04:11,890 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:11,890 INFO L82 PathProgramCache]: Analyzing trace with hash 16545356, now seen corresponding path program 1 times [2021-10-16 03:04:11,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:11,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618886689] [2021-10-16 03:04:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:11,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:11,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:11,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618886689] [2021-10-16 03:04:11,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618886689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:11,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:11,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:04:11,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510124469] [2021-10-16 03:04:11,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:04:11,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:04:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:04:11,920 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:12,032 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2021-10-16 03:04:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:04:12,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-16 03:04:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:12,034 INFO L225 Difference]: With dead ends: 116 [2021-10-16 03:04:12,034 INFO L226 Difference]: Without dead ends: 65 [2021-10-16 03:04:12,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:04:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-16 03:04:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2021-10-16 03:04:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.1379310344827587) internal successors, (66), 61 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) [2021-10-16 03:04:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-10-16 03:04:12,038 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 27 [2021-10-16 03:04:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:12,038 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-10-16 03:04:12,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:12,039 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-10-16 03:04:12,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:04:12,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:12,040 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:12,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-16 03:04:12,040 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:12,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:12,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1237029900, now seen corresponding path program 1 times [2021-10-16 03:04:12,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:12,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858426893] [2021-10-16 03:04:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:12,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:04:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:04:12,150 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:04:12,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858426893] [2021-10-16 03:04:12,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858426893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:04:12,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:04:12,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-16 03:04:12,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178949828] [2021-10-16 03:04:12,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-16 03:04:12,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:04:12,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-16 03:04:12,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-10-16 03:04:12,154 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:12,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:04:12,346 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2021-10-16 03:04:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 03:04:12,347 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-16 03:04:12,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:04:12,347 INFO L225 Difference]: With dead ends: 65 [2021-10-16 03:04:12,348 INFO L226 Difference]: Without dead ends: 64 [2021-10-16 03:04:12,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 82.0ms TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2021-10-16 03:04:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-16 03:04:12,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56. [2021-10-16 03:04:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 55 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:12,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2021-10-16 03:04:12,351 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 27 [2021-10-16 03:04:12,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:04:12,351 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2021-10-16 03:04:12,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:04:12,351 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2021-10-16 03:04:12,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 03:04:12,352 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:04:12,352 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:04:12,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-16 03:04:12,352 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:04:12,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:04:12,353 INFO L82 PathProgramCache]: Analyzing trace with hash 501261589, now seen corresponding path program 1 times [2021-10-16 03:04:12,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:04:12,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621913864] [2021-10-16 03:04:12,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:04:12,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:04:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:04:12,366 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:04:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:04:12,396 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:04:12,397 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:04:12,398 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,406 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,406 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,406 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,407 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,407 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,407 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,407 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,408 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,408 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,408 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,408 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,411 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,411 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,413 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,415 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 03:04:12,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-16 03:04:12,422 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:04:12,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:04:12 BoogieIcfgContainer [2021-10-16 03:04:12,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:04:12,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:04:12,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:04:12,445 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:04:12,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:04:05" (3/4) ... [2021-10-16 03:04:12,447 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 03:04:12,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:04:12,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:04:12,492 INFO L168 Benchmark]: Toolchain (without parser) took 7797.69 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 101.8 MB in the beginning and 100.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:04:12,492 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 43.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:04:12,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.98 ms. Allocated memory is still 127.9 MB. Free memory was 101.4 MB in the beginning and 105.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:04:12,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.04 ms. Allocated memory is still 127.9 MB. Free memory was 105.7 MB in the beginning and 104.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:04:12,494 INFO L168 Benchmark]: Boogie Preprocessor took 51.83 ms. Allocated memory is still 127.9 MB. Free memory was 104.3 MB in the beginning and 103.3 MB in the end (delta: 958.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:04:12,494 INFO L168 Benchmark]: RCFGBuilder took 500.95 ms. Allocated memory is still 127.9 MB. Free memory was 103.3 MB in the beginning and 90.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:04:12,495 INFO L168 Benchmark]: TraceAbstraction took 6774.55 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 89.6 MB in the beginning and 102.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:04:12,495 INFO L168 Benchmark]: Witness Printer took 45.66 ms. Allocated memory is still 169.9 MB. Free memory was 102.5 MB in the beginning and 100.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:04:12,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 43.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.98 ms. Allocated memory is still 127.9 MB. Free memory was 101.4 MB in the beginning and 105.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.04 ms. Allocated memory is still 127.9 MB. Free memory was 105.7 MB in the beginning and 104.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.83 ms. Allocated memory is still 127.9 MB. Free memory was 104.3 MB in the beginning and 103.3 MB in the end (delta: 958.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 500.95 ms. Allocated memory is still 127.9 MB. Free memory was 103.3 MB in the beginning and 90.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6774.55 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 89.6 MB in the beginning and 102.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * Witness Printer took 45.66 ms. Allocated memory is still 169.9 MB. Free memory was 102.5 MB in the beginning and 100.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 65]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] int y; [L16] int z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L22] x = -1 [L24] COND FALSE !(x > 0) [L27] EXPR x - 1 [L27] x = x - 1 [L29] COND FALSE !(x > 0) [L32] EXPR x - 1 [L32] x = x - 1 [L34] COND FALSE !(x > 0) [L37] EXPR x - 1 [L37] x = x - 1 [L39] COND FALSE !(x > 0) [L42] EXPR x - 1 [L42] x = x - 1 [L44] COND FALSE !(x > 0) [L47] EXPR x - 1 [L47] x = x - 1 [L49] COND FALSE !(x > 0) [L52] EXPR x - 1 [L52] x = x - 1 [L54] COND FALSE !(x > 0) [L57] EXPR x - 1 [L57] x = x - 1 [L59] COND FALSE !(x > 0) [L62] EXPR x - 1 [L62] x = x - 1 [L64] COND TRUE y<100 && z<100 [L65] y+x - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 6674.1ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 53.5ms, AutomataDifference: 4425.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 34.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 456 SDtfs, 1993 SDslu, 91 SDs, 0 SdLazy, 3644 SolverSat, 756 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2961.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 553.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=9, InterpolantAutomatonStates: 142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 180.5ms AutomataMinimizationTime, 20 MinimizatonAttempts, 758 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.3ms SsaConstructionTime, 188.1ms SatisfiabilityAnalysisTime, 1299.4ms InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 1066 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 03:04:12,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae6670e-e189-42b5-ae08-6b4f1e9c51b8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...